chore(deps): update Go dependencies

* only build debug info when log level is debug

* introduce new flag 'gotenberg-build-debug-data'

* add gotenberg-build-debug-data flag to Makefile

* add new integration test for gotenberg-build-debug-data flag

* update GET /debug (Enabled) test with gotenberg-build-debug-data flag

* reorder GOTENBERG_BUILD_DEBUG_DATA in Makefile

* reorder Build Debug Data Disabled test scenario

---------

Co-authored-by: Hector Zarate <hector@Hectors-MacBook-Pro.local>

.dockerignore

@@ -1 +1 @@
-.git
+.git

.env

@@ -0,0 +1,13 @@
+GOLANG_VERSION=1.24
+DOCKER_REGISTRY=gotenberg
+DOCKER_REPOSITORY=gotenberg
+GOTENBERG_VERSION=snapshot
+GOTENBERG_USER_GID=1001
+GOTENBERG_USER_UID=1001
+NOTO_COLOR_EMOJI_VERSION=v2.047 # See https://github.com/googlefonts/noto-emoji/releases.
+PDFTK_VERSION=v3.3.3            # See https://gitlab.com/pdftk-java/pdftk/-/releases - Binary package.
+PDFCPU_VERSION=v0.8.1           # See https://github.com/pdfcpu/pdfcpu/releases.
+GOTENBERG_VERSION=snapshot
+DOCKERFILE=build/Dockerfile
+DOCKERFILE_CLOUDRUN=build/Dockerfile.cloudrun
+DOCKER_BUILD_CONTEXT='.'

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: [gulien]

.github/actions/build-test-push/action.yml

@@ -0,0 +1,87 @@
+name: Build Test Push
+description: Build, test and push Docker images for a given platform
+author: Julien Neuhart
+
+inputs:
+  github_token:
+    description: The GitHub token
+    required: true
+    default: ${{ github.token }}
+  docker_hub_username:
+    description: The Docker Hub username
+    required: true
+  docker_hub_password:
+    description: The Docker Hub password
+    required: true
+  platform:
+    description: linux/amd64, linux/386, linux/arm64, linux/arm/v7
+    required: true
+  version:
+    description: Gotenberg version
+    required: true
+  skip_integrations_tests:
+    description: Define whether to skip integration testing
+    default: false
+  alternate_repository:
+    description: Alternate repository to push the tags to
+  dry_run:
+    description: Dry run this action
+
+outputs:
+  tags:
+    description: Comma separated list of tag
+    value: ${{ steps.build.outputs.tags }}
+  tags_cloud_run:
+    description: Comma separated list of Cloud Run tags (linux/amd64 only)
+    value: ${{ steps.build.outputs.tags_cloud_run }}
+
+runs:
+  using: composite
+  steps:
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Check out code
+      uses: actions/checkout@v4
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ inputs.docker_hub_username }}
+        password: ${{ inputs.docker_hub_password }}
+
+    - name: Build ${{ inputs.platform }}
+      id: build
+      shell: bash
+      run: |
+        .github/actions/build-test-push/build.sh \
+          --version "${{ inputs.version }}" \
+          --platform "${{ inputs.platform }}" \
+          --alternate-repository "${{ inputs.alternate_repository }}" \
+          --dry-run "${{ inputs.dry_run }}"
+
+    - name: Run integration tests
+      if: ${{ inputs.skip_integrations_tests != 'true' }}
+      shell: bash
+      run: |
+        .github/actions/build-test-push/test.sh \
+          --version "${{ inputs.version }}" \
+          --platform "${{ inputs.platform }}" \
+          --alternate-repository "${{ inputs.alternate_repository }}" \
+          --dry-run "${{ inputs.dry_run }}"
+
+    - name: Push
+      shell: bash
+      run: |
+        .github/actions/build-test-push/push.sh \
+          --tags "${{ steps.build.outputs.tags }},${{ steps.build.outputs.tags_cloud_run }}" \
+          --dry-run "${{ inputs.dry_run }}"
+
+    - name: Outputs
+      shell: bash
+      run: |
+        echo "tags=${{ steps.build.outputs.tags }}"
+        echo "tags_cloud_run=${{ steps.build.outputs.tags_cloud_run }}"

.github/actions/build-test-push/build.sh

@@ -0,0 +1,167 @@
+#!/bin/bash
+
+# Exit early.
+# See: https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#The-Set-Builtin.
+set -e
+
+# Source dot env file.
+source .env
+
+# Arguments.
+version=""
+platform=""
+alternate_repository=""
+dry_run=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --version)
+      version="${2//v/}"
+      shift 2
+      ;;
+    --platform)
+      platform="$2"
+      shift 2
+      ;;
+    --alternate-repository)
+      alternate_repository="$2"
+      shift 2
+      ;;
+    --dry-run)
+      dry_run="$2"
+      shift 2
+      ;;
+    *)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+echo "Build and push 👷"
+echo
+
+echo "Gotenberg version: $version"
+echo "Target platform: $platform"
+
+if [ -n "$alternate_repository" ]; then
+  DOCKER_REPOSITORY=$alternate_repository
+  echo "⚠️ Using $alternate_repository for DOCKER_REPOSITORY"
+fi
+
+if [ "$dry_run" = "true" ]; then
+  echo "🚧 Dry run"
+fi
+
+# Build tags arrays.
+tags=()
+tags_cloud_run=()
+
+IFS='/' read -ra arch <<< "$platform"
+IFS='.' read -ra semver <<< "$version"
+
+if [ "${#semver[@]}" -eq 3 ]; then
+  echo
+  echo "Semver version detected"
+
+  major="${semver[0]}"
+  minor="${semver[1]}"
+  patch="${semver[2]}"
+
+  tags+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:latest-${arch[1]}")
+  tags+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major-${arch[1]}")
+  tags+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major.$minor-${arch[1]}")
+  tags+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major.$minor.$patch-${arch[1]}")
+
+  if [ "$platform" = "linux/amd64" ]; then
+    tags_cloud_run+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:latest-cloudrun")
+    tags_cloud_run+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major-cloudrun")
+    tags_cloud_run+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major.$minor-cloudrun")
+    tags_cloud_run+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major.$minor.$patch-cloudrun")
+  fi
+else
+  echo
+  echo "Non-semver version detected, fallback to $version"
+
+  tags+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-${arch[1]}")
+  if [ "$platform" = "linux/amd64" ]; then
+    tags_cloud_run+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-cloudrun")
+  fi
+fi
+
+tags_flags=()
+tags_cloud_run_flags=()
+
+echo "Will use the following tags:"
+for tag in "${tags[@]}"; do
+  tags_flags+=("-t" "$tag")
+  echo "- $tag"
+done
+for tag in "${tags_cloud_run[@]}"; do
+  tags_cloud_run_flags+=("-t" "$tag")
+  echo "- $tag"
+done
+echo
+
+# Build images.
+run_cmd() {
+  local cmd="$1"
+
+  if [ "$dry_run" = "true" ]; then
+    echo "🚧 Dry run - would run the following command:"
+    echo "$cmd"
+    echo
+  else
+    echo "⚙️ Running command:"
+    echo "$cmd"
+    eval "$cmd"
+    echo
+  fi
+}
+
+join() {
+  local delimiter="$1"
+  shift
+  local IFS="$delimiter"
+  echo "$*"
+}
+
+no_arch_tag="$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version"
+
+cmd="docker buildx build \
+    --build-arg GOLANG_VERSION=$GOLANG_VERSION \
+    --build-arg GOTENBERG_VERSION=$version \
+    --build-arg GOTENBERG_USER_GID=$GOTENBERG_USER_GID \
+    --build-arg GOTENBERG_USER_UID=$GOTENBERG_USER_UID \
+    --build-arg NOTO_COLOR_EMOJI_VERSION=$NOTO_COLOR_EMOJI_VERSION \
+    --build-arg PDFTK_VERSION=$PDFTK_VERSION \
+    --build-arg PDFCPU_VERSION=$PDFCPU_VERSION \
+    --platform $platform \
+    --load \
+    ${tags_flags[*]} \
+    -t $no_arch_tag \
+    -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
+"
+run_cmd "$cmd"
+
+if [ "$platform" != "linux/amd64" ]; then
+  echo "⚠️ Skip Cloud Run variant(s)"
+  echo "✅ Done!"
+  echo "tags=$(join "," "${tags[@]}")" >> "$GITHUB_OUTPUT"
+  echo "tags_cloud_run=$(join "," "${tags_cloud_run[@]}")" >> "$GITHUB_OUTPUT"
+  exit 0
+fi
+
+cmd="docker build \
+    --build-arg DOCKER_REGISTRY=$DOCKER_REGISTRY \
+    --build-arg DOCKER_REPOSITORY=$DOCKER_REPOSITORY \
+    --build-arg GOTENBERG_VERSION=$version \
+    ${tags_cloud_run_flags[*]} \
+    -f $DOCKERFILE_CLOUDRUN $DOCKER_BUILD_CONTEXT
+"
+run_cmd "$cmd"
+
+echo "✅ Done!"
+echo "tags=$(join "," "${tags[@]}")" >> "$GITHUB_OUTPUT"
+echo "tags_cloud_run=$(join "," "${tags_cloud_run[@]}")" >> "$GITHUB_OUTPUT"
+exit 0

.github/actions/build-test-push/push.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+
+# Exit early.
+# See: https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#The-Set-Builtin.
+set -e
+
+# Source dot env file.
+source .env
+
+# Arguments.
+tags=""
+dry_run=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --tags)
+      tags="$2"
+      shift 2
+      ;;
+    --dry-run)
+      dry_run=$2
+      shift 2
+      ;;
+    *)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+echo "Push tag(s) 📦"
+echo
+
+echo "Tag(s) to push:"
+IFS=',' read -ra tags_to_push <<< "$tags"
+for tag in "${tags_to_push[@]}"; do
+  echo "- $tag"
+done
+
+if [ "$dry_run" = "true" ]; then
+  echo "🚧 Dry run"
+fi
+echo
+
+# Push tags.
+run_cmd() {
+  local cmd="$1"
+
+  if [ "$dry_run" = "true" ]; then
+    echo "🚧 Dry run - would run the following command:"
+    echo "$cmd"
+    echo
+  else
+    echo "⚙️ Running command:"
+    echo "$cmd"
+    eval "$cmd"
+    echo
+  fi
+}
+
+for tag in "${tags_to_push[@]}"; do
+  cmd="docker push $tag"
+  run_cmd "$cmd"
+
+  echo "➡️ $tag pushed"
+  echo
+done
+
+echo "✅ Done!"
+exit 0

.github/actions/build-test-push/test.sh

@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# Exit early.
+# See: https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#The-Set-Builtin.
+set -e
+
+# Source dot env file.
+source .env
+
+# Arguments.
+version=""
+platform=""
+alternate_repository=""
+dry_run=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --version)
+      version="${2//v/}"
+      shift 2
+      ;;
+    --platform)
+      platform="$2"
+      shift 2
+      ;;
+    --alternate-repository)
+      alternate_repository="$2"
+      shift 2
+      ;;
+    --dry-run)
+      dry_run="$2"
+      shift 2
+      ;;
+    *)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+echo "Integration testing 🧪"
+echo
+
+echo "Gotenberg version: $version"
+echo "Target platform: $platform"
+
+repository=$DOCKER_REPOSITORY
+
+if [ -n "$alternate_repository" ]; then
+  echo "⚠️ Using $alternate_repository for DOCKER_REPOSITORY"
+  repository=$alternate_repository
+fi
+
+if [ "$dry_run" = "true" ]; then
+  echo "🚧 Dry run"
+fi
+echo
+
+# Test image.
+run_cmd() {
+  local cmd="$1"
+
+  if [ "$dry_run" = "true" ]; then
+    echo "🚧 Dry run - would run the following command:"
+    echo "$cmd"
+    echo
+  else
+    echo "⚙️ Running command:"
+    echo "$cmd"
+    eval "$cmd"
+    echo
+  fi
+}
+
+cmd="make test-integration DOCKER_REPOSITORY=$repository GOTENBERG_VERSION=$version PLATFORM=$platform NO_CONCURRENCY=true"
+run_cmd "$cmd"
+
+echo "✅ Done!"
+exit 0

.github/actions/clean/action.yml

@@ -0,0 +1,31 @@
+name: Clean
+description: Clean tags from Docker Hub
+author: Julien Neuhart
+
+inputs:
+  docker_hub_username:
+    description: The Docker Hub username
+    required: true
+  docker_hub_password:
+    description: The Docker Hub password
+    required: true
+  tags:
+    description: Comma separated list of tags to clean
+  snapshot_version:
+    description: Snapshot version to clean
+  dry_run:
+    description: Dry run this action
+
+runs:
+  using: composite
+  steps:
+    - name: Clean tags from Docker Hub
+      env:
+        DOCKERHUB_USERNAME: ${{ inputs.docker_hub_username }}
+        DOCKERHUB_TOKEN: ${{ inputs.docker_hub_password }}
+      shell: bash
+      run: |
+        .github/actions/clean/clean.sh \
+          --tags "${{ inputs.tags }}" \
+          --snapshot-version "${{ inputs.snapshot_version }}" \
+          --dry-run "${{ inputs.dry_run }}"

.github/actions/clean/clean.sh

@@ -0,0 +1,122 @@
+#!/bin/bash
+
+# Exit early.
+# See: https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#The-Set-Builtin.
+set -e
+
+# Source dot env file.
+source .env
+
+# Arguments.
+tags=""
+snapshot_version=""
+dry_run=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --tags)
+      tags="$2"
+      shift 2
+      ;;
+    --snapshot-version)
+      snapshot_version="${2//v/}"
+      shift 2
+      ;;
+    --dry-run)
+      dry_run="$2"
+      shift 2
+      ;;
+    *)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+echo "Clean tag(s) from Docker Hub 🧹"
+echo
+
+IFS=',' read -ra tags_to_delete <<< "$tags"
+if [ -n "$snapshot_version" ]; then
+  tags_to_delete+=("$DOCKER_REGISTRY/snapshot:$snapshot_version")
+  tags_to_delete+=("$DOCKER_REGISTRY/snapshot:$snapshot_version-cloudrun")
+fi
+
+echo "Will delete the following tag(s):"
+for tag in "${tags_to_delete[@]}"; do
+  echo "- $tag"
+done
+
+if [ "$dry_run" = "true" ]; then
+  echo "🚧 Dry run"
+fi
+echo
+
+# Delete tags.
+base_url="https://hub.docker.com/v2"
+token=""
+
+if [ "$dry_run" = "true" ]; then
+  token="placeholder"
+  echo "🚧 Dry run - would call $base_url to get a token"
+  echo
+else
+  echo "🌐 Get token from $base_url"
+
+  readarray -t lines < <(
+    curl -s -X POST \
+      -H "Content-Type: application/json" \
+      -d "{\"username\":\"$DOCKERHUB_USERNAME\", \"password\":\"$DOCKERHUB_TOKEN\"}" \
+      -w "\n%{http_code}" \
+      "$base_url/users/login"
+  )
+
+  http_code="${lines[-1]}"
+  unset 'lines[-1]'
+  json_body=$(printf "%s\n" "${lines[@]}")
+
+  if [ "$http_code" -ne "200" ]; then
+    echo "❌ Wrong HTTP status - $http_code"
+    echo "$json_body"
+    exit 1
+  fi
+
+  token=$(jq -r '.token' <<< "$json_body")
+  echo
+fi
+
+if [ -z "$token" ]; then
+  echo "❌ No token from Docker Hub"
+  exit 1
+fi
+
+for tag in "${tags_to_delete[@]}"; do
+  if [ "$dry_run" = "true" ]; then
+    echo "🚧 Dry run - would call $base_url to delete tag $tag"
+    echo
+  else
+    echo "🌐 Delete tag $tag"
+    IFS=':' read -ra tag_parts <<< "$tag"
+
+    readarray -t lines < <(
+      curl -s -X DELETE \
+        -H "Authorization: Bearer $token" \
+        -w "\n%{http_code}" \
+        "$base_url/repositories/${tag_parts[0]}/tags/${tag_parts[1]}/"
+    )
+
+    http_code="${lines[-1]}"
+    unset 'lines[-1]'
+
+    if [ "$http_code" -ne "200" ] && [ "$http_code" -ne "204" ]; then
+      echo "❌ Wrong HTTP status - $http_code"
+      printf '%s\n' "${lines[@]}"
+      exit 1
+    fi
+
+    echo
+  fi
+done
+
+echo "✅ Done!"
+exit 0

.github/actions/merge/action.yml

@@ -0,0 +1,48 @@
+name: Merge
+description: Merge tags to single multi-platform tags
+author: Julien Neuhart
+
+inputs:
+  github_token:
+    description: The GitHub token
+    required: true
+    default: ${{ github.token }}
+  docker_hub_username:
+    description: The Docker Hub username
+    required: true
+  docker_hub_password:
+    description: The Docker Hub password
+    required: true
+  tags:
+    description: Comma separated tags to merge
+    required: true
+  alternate_registry:
+    description: Alternate registry to also push resulting tags
+  dry_run:
+    description: Dry run this action
+
+runs:
+  using: composite
+  steps:
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Check out code
+      uses: actions/checkout@v4
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ inputs.docker_hub_username }}
+        password: ${{ inputs.docker_hub_password }}
+
+    - name: Merge
+      shell: bash
+      run: |
+        .github/actions/merge/merge.sh \
+          --tags "${{ inputs.tags }}" \
+          --alternate-registry "${{ inputs.alternate_registry }}" \
+          --dry-run "${{ inputs.dry_run }}"

.github/actions/merge/merge.sh

@@ -0,0 +1,107 @@
+#!/bin/bash
+
+# Exit early.
+# See: https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#The-Set-Builtin.
+set -e
+
+# Source dot env file.
+source .env
+
+# Arguments.
+tags=""
+alternate_registry=""
+dry_run=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --tags)
+      tags="$2"
+      shift 2
+      ;;
+    --alternate-registry)
+      alternate_registry="$2"
+      shift 2
+      ;;
+    --dry-run)
+      dry_run=$2
+      shift 2
+      ;;
+    *)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+echo "Merge tag(s) 👷"
+echo
+
+echo "Tag(s) to merge:"
+IFS=',' read -ra tags_to_merge <<< "$tags"
+for tag in "${tags_to_merge[@]}"; do
+  echo "- $tag"
+done
+
+if [ -n "$alternate_registry" ]; then
+  echo "⚠️ Will also push to $alternate_registry registry"
+fi
+
+if [ "$dry_run" = "true" ]; then
+  echo "🚧 Dry run"
+fi
+echo
+
+# Build merge map.
+declare -A merge_map
+
+for tag in "${tags_to_merge[@]}"; do
+  target_tag="${tag//-amd64/}"
+  target_tag="${target_tag//-arm64/}"
+  target_tag="${target_tag//-arm/}"
+  target_tag="${target_tag//-386/}"
+
+  merge_map["$target_tag"]+="$tag "
+done
+
+# Merge tags.
+run_cmd() {
+  local cmd="$1"
+
+  if [ "$dry_run" = "true" ]; then
+    echo "🚧 Dry run - would run the following command:"
+    echo "$cmd"
+    echo
+  else
+    echo "⚙️ Running command:"
+    echo "$cmd"
+    eval "$cmd"
+    echo
+  fi
+}
+
+for target in "${!merge_map[@]}"; do
+  IFS=' ' read -ra source_tags <<< "${merge_map[$target]}"
+
+  cmd="docker buildx imagetools create \
+       -t $target \
+       ${source_tags[*]}
+   "
+  run_cmd "$cmd"
+
+  echo "➡️ $target pushed"
+  echo
+  if [ -n "$alternate_registry" ]; then
+    alternate_target="${target/$DOCKER_REGISTRY/$alternate_registry}"
+    cmd="docker buildx imagetools create \
+            -t $alternate_target \
+            $target
+        "
+    run_cmd "$cmd"
+
+    echo "➡️ $alternate_target pushed"
+    echo
+  fi
+done
+
+echo "✅ Done!"
+exit 0

.github/dependabot.yml

@@ -1,6 +1,5 @@
 version: 2
 updates:
-
   # Maintain dependencies for GitHub Actions
   - package-ecosystem: "github-actions"
     directory: "/"

.github/stale.yml

@@ -1,7 +1,7 @@
 # Number of days of inactivity before an issue becomes stale
-daysUntilStale: 15
+daysUntilStale: 7
 # Number of days of inactivity before a stale issue is closed
-daysUntilClose: 7
+daysUntilClose: 3
 # Issues with these labels will never be considered stale
 exemptLabels:
   - bug
@@ -15,4 +15,4 @@ markComment: >
   recent activity. It will be closed if no further activity occurs. Thank you
   for your contributions.
 # Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false
+closeComment: false

.github/workflows/continuous-delivery.yml

@@ -0,0 +1,116 @@
+name: Continuous Delivery
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+
+jobs:
+  release_amd64:
+    name: Release linux/amd64
+    runs-on: ubuntu-latest
+    outputs:
+      tags: ${{ steps.build_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build and push
+        id: build_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: ${{ github.event.release.tag_name }}
+          platform: linux/amd64
+          skip_integrations_tests: true
+
+  release_386:
+    name: Release linux/386
+    runs-on: ubuntu-latest
+    outputs:
+      tags: ${{ steps.build_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build and push
+        id: build_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: ${{ github.event.release.tag_name }}
+          platform: linux/386
+          skip_integrations_tests: true
+
+  release_arm64:
+    name: Release linux/arm64
+    runs-on: ubuntu-24.04-arm
+    outputs:
+      tags: ${{ steps.build_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build and push
+        id: build_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: ${{ github.event.release.tag_name }}
+          platform: linux/arm64
+          skip_integrations_tests: true
+
+  release_arm_v7:
+    name: Release linux/arm/v7
+    runs-on: ubuntu-24.04-arm
+    outputs:
+      tags: ${{ steps.build_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build and push
+        id: build_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: ${{ github.event.release.tag_name }}
+          platform: linux/arm/v7
+          skip_integrations_tests: true
+
+  merge_clean_release_tags:
+    needs:
+      - release_amd64
+      - release_386
+      - release_arm64
+      - release_arm_v7
+    name: Merge and clean release tags
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Merge
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.release_amd64.outputs.tags }},${{ needs.release_386.outputs.tags }},${{ needs.release_arm64.outputs.tags }},${{ needs.release_arm_v7.outputs.tags }}"
+          alternate_registry: thecodingmachine
+
+      - name: Clean
+        uses: ./.github/actions/clean
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.release_amd64.outputs.tags }},${{ needs.release_386.outputs.tags }},${{ needs.release_arm64.outputs.tags }},${{ needs.release_arm_v7.outputs.tags }}"

.github/workflows/continuous-integration.yml

@@ -0,0 +1,303 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ (github.event_name == 'pull_request' && github.event.pull_request.number) || 'main' }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+jobs:
+  lint:
+    name: Lint Golang codebase
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Run linters
+        uses: golangci/golangci-lint-action@v7
+        with:
+          version: v2.0.2
+
+  lint-prettier:
+    name: Lint non-Golang codebase
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+
+      - name: Install Dependencies
+        run: npm i
+
+      - name: Run linters
+        run: make lint-prettier
+
+  test-unit:
+    needs:
+      - lint
+      - lint-prettier
+    name: Run unit tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Run tests
+        run: make test-unit
+
+  snapshot_amd64:
+    if: github.event_name == 'pull_request'
+    needs:
+      - test-unit
+    name: Snapshot linux/amd64
+    runs-on: ubuntu-latest
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: pr-${{ github.event.pull_request.number }}
+          platform: linux/amd64
+          alternate_repository: snapshot
+
+  snapshot_386:
+    if: github.event_name == 'pull_request'
+    needs:
+      - test-unit
+    name: Snapshot linux/386
+    runs-on: ubuntu-latest
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: pr-${{ github.event.pull_request.number }}
+          platform: linux/386
+          alternate_repository: snapshot
+
+  snapshot_arm64:
+    if: github.event_name == 'pull_request'
+    needs:
+      - test-unit
+    name: Snapshot linux/arm64
+    runs-on: ubuntu-24.04-arm
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: pr-${{ github.event.pull_request.number }}
+          platform: linux/arm64
+          alternate_repository: snapshot
+
+  snapshot_arm_v7:
+    if: github.event_name == 'pull_request'
+    needs:
+      - test-unit
+    name: Snapshot linux/arm/v7
+    runs-on: ubuntu-24.04-arm
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: pr-${{ github.event.pull_request.number }}
+          platform: linux/arm/v7
+          alternate_repository: snapshot
+
+  merge_clean_snapshot_tags:
+    needs:
+      - snapshot_amd64
+      - snapshot_386
+      - snapshot_arm64
+      - snapshot_arm_v7
+    name: Merge and clean snapshot tags
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Merge
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.snapshot_amd64.outputs.tags }},${{ needs.snapshot_386.outputs.tags }},${{ needs.snapshot_arm64.outputs.tags }},${{ needs.snapshot_arm_v7.outputs.tags }}"
+
+      - name: Clean
+        uses: ./.github/actions/clean
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.snapshot_amd64.outputs.tags }},${{ needs.snapshot_386.outputs.tags }},${{ needs.snapshot_arm64.outputs.tags }},${{ needs.snapshot_arm_v7.outputs.tags }}"
+
+  edge_amd64:
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    needs:
+      - test-unit
+    name: Edge linux/amd64
+    runs-on: ubuntu-latest
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: edge
+          platform: linux/amd64
+
+  edge_386:
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    needs:
+      - test-unit
+    name: Edge linux/386
+    runs-on: ubuntu-latest
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: edge
+          platform: linux/386
+
+  edge_arm64:
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    needs:
+      - test-unit
+    name: Edge linux/arm64
+    runs-on: ubuntu-24.04-arm
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: edge
+          platform: linux/arm64
+
+  edge_arm_v7:
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    needs:
+      - test-unit
+    name: Edge linux/arm/v7
+    runs-on: ubuntu-24.04-arm
+    outputs:
+      tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Build, test and push
+        id: build_test_push
+        uses: ./.github/actions/build-test-push
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          version: edge
+          platform: linux/arm/v7
+
+  merge_clean_edge_tags:
+    needs:
+      - edge_amd64
+      - edge_386
+      - edge_arm64
+      - edge_arm_v7
+    name: Merge and clean edge tags
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Merge
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.edge_amd64.outputs.tags }},${{ needs.edge_386.outputs.tags }},${{ needs.edge_arm64.outputs.tags }},${{ needs.edge_arm_v7.outputs.tags }}"
+          alternate_registry: thecodingmachine
+
+      - name: Clean
+        uses: ./.github/actions/clean
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.edge_amd64.outputs.tags }},${{ needs.edge_386.outputs.tags }},${{ needs.edge_arm64.outputs.tags }},${{ needs.edge_arm_v7.outputs.tags }}"

.github/workflows/continuous_delivery.yml

@@ -1,26 +0,0 @@
-name: Continuous Delivery
-
-on:
-  release:
-    types: [ published ]
-
-jobs:
-  release:
-    name: Release Docker image
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-      - name: Checkout source code
-        uses: actions/checkout@v4
-      - name: Log in to Docker Hub Container Registry
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build and push Docker image for release
-        run: |
-          make release GOTENBERG_VERSION=${{ github.event.release.tag_name }}
-          make release GOTENBERG_VERSION=${{ github.event.release.tag_name }} DOCKER_REPOSITORY=thecodingmachine

.github/workflows/continuous_integration.yml

@@ -1,71 +0,0 @@
-name: Continuous Integration
-
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-
-jobs:
-
-  lint:
-    name: Lint
-    runs-on: ubuntu-latest
-    steps:
-      - name: Setup Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: '1.22'
-          cache: false
-      - name: Checkout source code
-        uses: actions/checkout@v4
-      - name: Run linters
-        uses: golangci/golangci-lint-action@v4
-        with:
-          version: v1.56.2
-
-  tests:
-    needs:
-      - Lint
-    name: Tests
-    # TODO: once arm64 actions are available, also run the tests on this architecture.
-    # See: https://github.com/actions/virtual-environments/issues/2552#issuecomment-771478000.
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-      - name: Checkout source code
-        uses: actions/checkout@v4
-      - name: Build testing environment
-        run: make build build-tests
-      - name: Run tests
-        run: |
-          make tests-once
-          bash <(curl -s https://codecov.io/bash)
-
-  multiarch_build:
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-    needs:
-      - Tests
-    name: Multi-arch build
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-      - name: Checkout source code
-        uses: actions/checkout@v4
-      - name: Log in to Docker Hub Container Registry
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build and push Docker image for main branch
-        run: |
-          make release GOTENBERG_VERSION=edge
-          make release GOTENBERG_VERSION=edge DOCKER_REPOSITORY=thecodingmachine

.github/workflows/pull-request-cleanup.yml

@@ -0,0 +1,23 @@
+name: Pull Request Cleanup
+
+on:
+  pull_request:
+    types: [closed]
+
+permissions:
+  contents: read
+
+jobs:
+  cleanup:
+    name: Cleanup Docker images
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Cleanup
+        uses: ./.github/actions/clean
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          snapshot_version: pr-${{ github.event.pull_request.number }}

.gitignore

@@ -1,3 +1,4 @@
-/coverage.html
-/coverage.txt
-/TODO.txt
+.idea
+.vscode
+.DS_Store
+/node_modules/

.golangci.yml

@@ -1,19 +1,15 @@
-linters-settings:
-  gci:
-    sections:
-      - standard
-      - default
-      - prefix(github.com/gotenberg/gotenberg/v8)
-    skip-generated: true
-    custom-order: true
-
+version: "2"
+run:
+  issues-exit-code: 1
+  tests: false
 linters:
-  disable-all: true
+  default: none
   enable:
     - asasalint
     - asciicheck
     - bidichk
     - bodyclose
+    - copyloopvar
     - decorder
     - dogsled
     - dupl
@@ -22,38 +18,48 @@ linters:
     - errcheck
     - errname
     - exhaustive
-    - exportloopref
-    - gci
-    - gofmt
-    - goimports
-    - gofumpt
     - gosec
-    - gosimple
     - govet
-    - ineffassign
     - importas
+    - ineffassign
     - misspell
     - prealloc
     - promlinter
-    - sloglint
-    - sqlclosecheck
     - staticcheck
-    - tenv
     - testableexamples
-    - testifylint
     - tparallel
-    - typecheck
     - unconvert
     - unused
+    - usetesting
     - wastedassign
     - whitespace
-    - zerologlint
-
-run:
-  timeout: 5m
-  issues-exit-code: 1
-  tests: false
-
-output:
-  print-issued-lines: true
-  print-linter-name: true
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gci
+    - gofmt
+    - gofumpt
+    - goimports
+  settings:
+    gci:
+      sections:
+        - standard
+        - default
+        - prefix(github.com/gotenberg/gotenberg/v8)
+      custom-order: true
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

.node-version

@@ -0,0 +1 @@
+23.9.0

.prettierignore

@@ -0,0 +1 @@
+build

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "plugins": ["prettier-plugin-gherkin", "prettier-plugin-sh"],
+  "escapeBackslashes": true
+}

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2024 Julien Neuhart
+Copyright (c) Julien Neuhart
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

Makefile

@@ -1,18 +1,8 @@
+include .env
+
 .PHONY: help
 help: ## Show the help
-	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
-
-.PHONY: it
-it: build build-tests ## Initialize the development environment
-
-GOLANG_VERSION=1.22
-DOCKER_REPOSITORY=gotenberg
-GOTENBERG_VERSION=snapshot
-GOTENBERG_USER_GID=1001
-GOTENBERG_USER_UID=1001
-NOTO_COLOR_EMOJI_VERSION=v2.042 # See https://github.com/googlefonts/noto-emoji/releases.
-PDFTK_VERSION=v3.3.3 # See https://gitlab.com/pdftk-java/pdftk/-/releases - Binary package.
-GOLANGCI_LINT_VERSION=v1.56.2 # See https://github.com/golangci/golangci-lint/releases.
+	@grep -hE '^[A-Za-z0-9_ \-]*?:.*##.*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
 
 .PHONY: build
 build: ## Build the Gotenberg's Docker image
@@ -23,18 +13,30 @@ build: ## Build the Gotenberg's Docker image
 	--build-arg GOTENBERG_USER_UID=$(GOTENBERG_USER_UID) \
 	--build-arg NOTO_COLOR_EMOJI_VERSION=$(NOTO_COLOR_EMOJI_VERSION) \
 	--build-arg PDFTK_VERSION=$(PDFTK_VERSION) \
-	-t $(DOCKER_REPOSITORY)/gotenberg:$(GOTENBERG_VERSION) \
-	-f build/Dockerfile .
+	--build-arg PDFCPU_VERSION=$(PDFCPU_VERSION) \
+	-t $(DOCKER_REGISTRY)/$(DOCKER_REPOSITORY):$(GOTENBERG_VERSION) \
+	-f $(DOCKERFILE) $(DOCKER_BUILD_CONTEXT)
 
 GOTENBERG_GRACEFUL_SHUTDOWN_DURATION=30s
+GOTENBERG_BUILD_DEBUG_DATA=true
 API_PORT=3000
 API_PORT_FROM_ENV=
+API_BIND_IP=
 API_START_TIMEOUT=30s
 API_TIMEOUT=30s
-API_ROOT_PATH=/
+API_BODY_LIMIT=
+API_ROOT_PATH="/"
 API_TRACE_HEADER=Gotenberg-Trace
+API_ENABLE_BASIC_AUTH=false
+GOTENBERG_API_BASIC_AUTH_USERNAME=
+GOTENBERG_API_BASIC_AUTH_PASSWORD=
+API-DOWNLOAD-FROM-ALLOW-LIST=
+API-DOWNLOAD-FROM-DENY-LIST=
+API-DOWNLOAD-FROM-FROM-MAX-RETRY=4
+API-DISABLE-DOWNLOAD-FROM=false
 API_DISABLE_HEALTH_CHECK_LOGGING=false
-CHROMIUM_RESTART_AFTER=0
+API_ENABLE_DEBUG_ROUTE=false
+CHROMIUM_RESTART_AFTER=10
 CHROMIUM_MAX_QUEUE_SIZE=0
 CHROMIUM_AUTO_START=false
 CHROMIUM_START_TIMEOUT=20s
@@ -59,7 +61,13 @@ LIBREOFFICE_DISABLE_ROUTES=false
 LOG_LEVEL=info
 LOG_FORMAT=auto
 LOG_FIELDS_PREFIX=
-PDFENGINES_ENGINES=
+LOG_ENABLE_GCP_FIELDS=false
+PDFENGINES_MERGE_ENGINES=qpdf,pdfcpu,pdftk
+PDFENGINES_SPLIT_ENGINES=pdfcpu,qpdf,pdftk
+PDFENGINES_FLATTEN_ENGINES=qpdf
+PDFENGINES_CONVERT_ENGINES=libreoffice-pdfengine
+PDFENGINES_READ_METADATA_ENGINES=exiftool
+PDFENGINES_WRITE_METADATA_ENGINES=exiftool
 PDFENGINES_DISABLE_ROUTES=false
 PROMETHEUS_NAMESPACE=gotenberg
 PROMETHEUS_COLLECT_INTERVAL=1s
@@ -79,16 +87,27 @@ WEBHOOK_DISABLE=false
 run: ## Start a Gotenberg container
 	docker run --rm -it \
 	-p $(API_PORT):$(API_PORT) \
-	$(DOCKER_REPOSITORY)/gotenberg:$(GOTENBERG_VERSION) \
+	-e GOTENBERG_API_BASIC_AUTH_USERNAME=$(GOTENBERG_API_BASIC_AUTH_USERNAME) \
+	-e GOTENBERG_API_BASIC_AUTH_PASSWORD=$(GOTENBERG_API_BASIC_AUTH_PASSWORD) \
+	$(DOCKER_REGISTRY)/$(DOCKER_REPOSITORY):$(GOTENBERG_VERSION) \
 	gotenberg \
 	--gotenberg-graceful-shutdown-duration=$(GOTENBERG_GRACEFUL_SHUTDOWN_DURATION) \
+	--gotenberg-build-debug-data="$(GOTENBERG_BUILD_DEBUG_DATA)" \
 	--api-port=$(API_PORT) \
 	--api-port-from-env=$(API_PORT_FROM_ENV) \
+	--api-bind-ip=$(API_BIND_IP) \
 	--api-start-timeout=$(API_START_TIMEOUT) \
 	--api-timeout=$(API_TIMEOUT) \
+	--api-body-limit="$(API_BODY_LIMIT)" \
 	--api-root-path=$(API_ROOT_PATH) \
 	--api-trace-header=$(API_TRACE_HEADER) \
+	--api-enable-basic-auth=$(API_ENABLE_BASIC_AUTH) \
+	--api-download-from-allow-list=$(API-DOWNLOAD-FROM-ALLOW-LIST) \
+	--api-download-from-deny-list=$(API-DOWNLOAD-FROM-DENY-LIST) \
+	--api-download-from-max-retry=$(API-DOWNLOAD-FROM-FROM-MAX-RETRY) \
+	--api-disable-download-from=$(API-DISABLE-DOWNLOAD-FROM) \
 	--api-disable-health-check-logging=$(API_DISABLE_HEALTH_CHECK_LOGGING) \
+	--api-enable-debug-route=$(API_ENABLE_DEBUG_ROUTE) \
 	--chromium-restart-after=$(CHROMIUM_RESTART_AFTER) \
 	--chromium-auto-start=$(CHROMIUM_AUTO_START) \
 	--chromium-max-queue-size=$(CHROMIUM_MAX_QUEUE_SIZE) \
@@ -114,7 +133,13 @@ run: ## Start a Gotenberg container
 	--log-level=$(LOG_LEVEL) \
 	--log-format=$(LOG_FORMAT) \
 	--log-fields-prefix=$(LOG_FIELDS_PREFIX) \
-	--pdfengines-engines=$(PDFENGINES_ENGINES) \
+	--log-enable-gcp-fields=$(LOG_ENABLE_GCP_FIELDS) \
+	--pdfengines-merge-engines=$(PDFENGINES_MERGE_ENGINES) \
+	--pdfengines-split-engines=$(PDFENGINES_SPLIT_ENGINES) \
+	--pdfengines-flatten-engines=$(PDFENGINES_FLATTEN_ENGINES) \
+	--pdfengines-convert-engines=$(PDFENGINES_CONVERT_ENGINES) \
+	--pdfengines-read-metadata-engines=$(PDFENGINES_READ_METADATA_ENGINES) \
+	--pdfengines-write-metadata-engines=$(PDFENGINES_WRITE_METADATA_ENGINES) \
 	--pdfengines-disable-routes=$(PDFENGINES_DISABLE_ROUTES) \
 	--prometheus-namespace=$(PROMETHEUS_NAMESPACE) \
 	--prometheus-collect-interval=$(PROMETHEUS_COLLECT_INTERVAL) \
@@ -130,51 +155,44 @@ run: ## Start a Gotenberg container
 	--webhook-client-timeout=$(WEBHOOK_CLIENT_TIMEOUT) \
 	--webhook-disable=$(WEBHOOK_DISABLE)
 
-.PHONY: build-tests
-build-tests: ## Build the tests' Docker image
-	docker build \
-	--build-arg GOLANG_VERSION=$(GOLANG_VERSION) \
-	--build-arg DOCKER_REPOSITORY=$(DOCKER_REPOSITORY) \
-	--build-arg GOTENBERG_VERSION=$(GOTENBERG_VERSION) \
-	--build-arg GOLANGCI_LINT_VERSION=$(GOLANGCI_LINT_VERSION) \
-	-t $(DOCKER_REPOSITORY)/gotenberg:$(GOTENBERG_VERSION)-tests \
-	-f test/Dockerfile .
+.PHONY: test-unit
+test-unit: ## Run unit tests
+	go test -race ./...
 
-.PHONY: tests
-tests: ## Start the testing environment
-	docker run --rm -it \
-	-v $(PWD):/tests \
-	$(DOCKER_REPOSITORY)/gotenberg:$(GOTENBERG_VERSION)-tests \
-	bash
+PLATFORM=
+NO_CONCURRENCY=false
 
-.PHONY: tests-once
-tests-once: ## Run the tests once (prefer the "tests" command while developing)
-	docker run --rm  \
-	-v $(PWD):/tests \
-	$(DOCKER_REPOSITORY)/gotenberg:$(GOTENBERG_VERSION)-tests \
-	gotest
+.PHONY: test-integration
+test-integration: ## Run integration tests
+	go test -timeout 20m -tags=integration -v github.com/gotenberg/gotenberg/v8/test/integration -args \
+	--gotenberg-docker-repository=$(DOCKER_REPOSITORY) \
+	--gotenberg-version=$(GOTENBERG_VERSION) \
+ 	--gotenberg-container-platform=$(PLATFORM) \
+ 	--no-concurrency=$(NO_CONCURRENCY)
+
+.PHONY: lint
+lint: ## Lint Golang codebase
+	golangci-lint run
+
+.PHONY: lint-prettier
+lint-prettier: ## Lint non-Golang codebase
+	npx prettier --check .
+
+.PHONY: lint-todo
+lint-todo: ## Find TODOs in Golang codebase
+	golangci-lint run --no-config --disable-all --enable godox
 
-# go install mvdan.cc/gofumpt@latest
-# go install github.com/daixiang0/gci@latest
 .PHONY: fmt
-fmt: ## Format the code and "optimize" the dependencies
-	gofumpt -l -w .
-	gci write -s standard -s default -s "prefix(github.com/gotenberg/gotenberg/v8)" --skip-generated --skip-vendor --custom-order .
+fmt: ## Format Golang codebase and "optimize" the dependencies
+	golangci-lint fmt
 	go mod tidy
 
+.PHONY: prettify
+prettify: ## Format non-Golang codebase
+	npx prettier --write .
+
 # go install golang.org/x/tools/cmd/godoc@latest
 .PHONY: godoc
 godoc: ## Run a webserver with Gotenberg godoc
 	$(info http://localhost:6060/pkg/github.com/gotenberg/gotenberg/v8)
 	godoc -http=:6060
-
-.PHONY: release
-release: ## Build the Gotenberg's Docker image for many platforms, then push it to a Docker repository
-	./scripts/release.sh \
- 	$(GOLANG_VERSION) \
-	$(GOTENBERG_VERSION) \
-	$(GOTENBERG_USER_GID) \
-	$(GOTENBERG_USER_UID) \
-	$(NOTO_COLOR_EMOJI_VERSION) \
-	$(PDFTK_VERSION) \
-	$(DOCKER_REPOSITORY)

README.md

@@ -1,13 +1,22 @@
 <p align="center">
     <img src="https://user-images.githubusercontent.com/8983173/130322857-185831e2-f041-46eb-a17f-0a69d066c4e5.png" alt="Gotenberg Logo" width="150" height="150" />
     <h3 align="center">Gotenberg</h3>
-    <p align="center">A Docker-powered stateless API for PDF files</p>
+    <p align="center">A containerized API for seamless PDF conversion</p>
+    <p align="center">
+        <a href="https://hub.docker.com/r/gotenberg/gotenberg"><img alt="Total downloads (gotenberg/gotenberg)" src="https://img.shields.io/docker/pulls/gotenberg/gotenberg"></a>
+        <a href="https://hub.docker.com/r/thecodingmachine/gotenberg"><img alt="Total downloads (thecodingmachine/gotenberg)" src="https://img.shields.io/docker/pulls/thecodingmachine/gotenberg"></a>
+        <a href="https://github.com/gotenberg/gotenberg/actions/workflows/continuous-integration.yml"><img alt="Continuous Integration" src="https://github.com/gotenberg/gotenberg/actions/workflows/continuous-integration.yml/badge.svg"></a>
+        <a href="https://pkg.go.dev/github.com/gotenberg/gotenberg/v8"><img alt="Go Reference" src="https://pkg.go.dev/badge/github.com/gotenberg/gotenberg.svg"></a>
+    </p>
+    <p align="center">
+        <a href="https://trendshift.io/repositories/2996"><img src="https://trendshift.io/api/badge/repositories/2996" alt="gotenberg%2Fgotenberg | Trendshift" style="width: 250px; height: 55px;" width="250" height="55"/></a>
+    </p>
     <p align="center"><a href="https://gotenberg.dev/docs/getting-started/introduction">Documentation</a> &#183; <a href="https://gotenberg.dev/docs/getting-started/installation#live-demo-">Live Demo</a> 🔥</p>
 </p>
 
 ---
 
-Gotenberg provides a developer-friendly API to interact with powerful tools like Chromium and LibreOffice for converting 
+**Gotenberg** provides a developer-friendly API to interact with powerful tools like Chromium and LibreOffice for converting
 numerous document formats (HTML, Markdown, Word, Excel, etc.) into PDF files, and more!
 
 ## Quick Start
@@ -32,14 +41,14 @@ Head to the [documentation](https://gotenberg.dev/docs/getting-started/introduct
 
 <p align="center">
     <a href="https://thecodingmachine.com">
-        <img src="https://user-images.githubusercontent.com/8983173/130324668-9d6e7b35-53a3-49c7-a574-38190d2bd6b0.png" alt="TheCodingMachine Logo" width="429" height="210" />
+        <img src="https://user-images.githubusercontent.com/8983173/130324668-9d6e7b35-53a3-49c7-a574-38190d2bd6b0.png" alt="TheCodingMachine Logo" width="333" height="163" />
+    </a>
+    <a href="https://zolsec.com?utm_source=gotenberg_github&utm_medium=website" target="_blank">
+        <img src="https://github.com/gotenberg/gotenberg/assets/8983173/707ccc97-a79b-4dcb-8fc8-6827366e5be3" alt="Zolsec Logo" width="333" height="163" />
+    </a>
+    <a href="https://pdfme.com?utm_source=gotenberg_github&utm_medium=website" target="_blank">
+        <img src="https://github.com/user-attachments/assets/2a75dd40-ca18-4d34-acd5-5dd474595168" alt="pdfme Logo" width="333" height="163" />
     </a>
 </p>
 
-## Badges
-
-[![Docker pulls](https://img.shields.io/docker/pulls/gotenberg/gotenberg)](https://hub.docker.com/r/gotenberg/gotenberg)
-[![Docker pulls](https://img.shields.io/docker/pulls/thecodingmachine/gotenberg)](https://hub.docker.com/r/thecodingmachine/gotenberg)
-[![Continuous Integration](https://github.com/gotenberg/gotenberg/actions/workflows/continuous_integration.yml/badge.svg)](https://github.com/gotenberg/gotenberg/actions/workflows/continuous_integration.yml)
-[![Go Reference](https://pkg.go.dev/badge/github.com/gotenberg/gotenberg.svg)](https://pkg.go.dev/github.com/gotenberg/gotenberg/v8)
-[![Codecov](https://codecov.io/gh/gotenberg/gotenberg/branch/main/graph/badge.svg)](https://codecov.io/gh/gotenberg/gotenberg)
+Sponsorships help maintaining and improving Gotenberg - [become a sponsor](https://github.com/sponsors/gulien) ❤️

SECURITY.md

@@ -2,25 +2,25 @@
 
 ## Supported Versions
 
-Please ensure to keep your environment up-to-date and use only the latest version of Gotenberg. 
+Please ensure to keep your environment up-to-date and use only the latest version of Gotenberg.
 Security updates and patches will be applied only to the most recent version.
 
 ## Reporting a Vulnerability
 
-Your help in identifying vulnerabilities in our project is much appreciated. 
+Your help in identifying vulnerabilities in our project is much appreciated.
 We take all reports regarding security seriously.
 
-If you discover a security vulnerability, please refrain from publishing it publicly. 
-Instead, kindly send us the details via email to *neuhart [dot] julien [at] gmail [dot] com*.
+If you discover a security vulnerability, please refrain from publishing it publicly.
+Instead, kindly send us the details via email to _neuhart [dot] julien [at] gmail [dot] com_.
 
-In the subject of your email, please indicate that it's a security vulnerability report for Gotenberg. 
+In the subject of your email, please indicate that it's a security vulnerability report for Gotenberg.
 In your message, please include:
 
-* A detailed description of the vulnerability.
-* The steps to reproduce the issue.
-* Any potential impact of the vulnerability on the users or system.
+- A detailed description of the vulnerability.
+- The steps to reproduce the issue.
+- Any potential impact of the vulnerability on the users or system.
 
-Please remember that this process is done in a *'best-effort'* manner. 
+Please remember that this process is done in a _'best-effort'_ manner.
 This means we strive to respond and act as quickly as possible, but the speed may vary depending on the severity of
 the issue and our resources.
 
@@ -28,14 +28,14 @@ Thank you in advance for helping to keep our project safe!
 
 ## Disclosure Policy
 
-Once we have received your vulnerability report, we will work to validate and reproduce the issue. 
+Once we have received your vulnerability report, we will work to validate and reproduce the issue.
 If we can confirm the vulnerability, we will proceed to:
 
-* Work on a fix and a release timeline.
-* Notify you when the fix has been implemented and released.
-* Credit you for discovering the vulnerability (unless you request anonymity).
-* Please note that we will do our best to keep you informed about the progress towards resolving the issue.
+- Work on a fix and a release timeline.
+- Notify you when the fix has been implemented and released.
+- Credit you for discovering the vulnerability (unless you request anonymity).
+- Please note that we will do our best to keep you informed about the progress towards resolving the issue.
 
 ## Comments on this Policy
 
-If you have suggestions on how this process could be improved, please submit a pull request.
+If you have suggestions on how this process could be improved, please submit a pull request.

build/Dockerfile

@@ -3,13 +3,38 @@
 # stage that uses them.
 ARG GOLANG_VERSION
 
+# ----------------------------------------------
+# pdfcpu binary build stage
+# ----------------------------------------------
+# Note: this stage is required as pdfcpu does not release an armhf variant by
+# default.
+
+FROM golang:$GOLANG_VERSION AS pdfcpu-binary-stage
+
+ARG PDFCPU_VERSION
+ENV CGO_ENABLED=0
+
+# Define the working directory outside of $GOPATH (we're using go modules).
+WORKDIR /home
+
+RUN curl -Ls "https://github.com/pdfcpu/pdfcpu/archive/refs/tags/$PDFCPU_VERSION.tar.gz" -o pdfcpu.tar.gz &&\
+    tar --strip-components=1 -xvzf pdfcpu.tar.gz
+
+# Install module dependencies.
+RUN go mod download &&\
+    go mod verify
+
+RUN go build -o pdfcpu -ldflags "-s -w -X 'main.version=$PDFCPU_VERSION' -X 'github.com/pdfcpu/pdfcpu/pkg/pdfcpu.VersionStr=$PDFCPU_VERSION' -X main.builtBy=gotenberg" ./cmd/pdfcpu &&\
+    # Verify installation.
+    ./pdfcpu version
+
 # ----------------------------------------------
 # Gotenberg binary build stage
 # ----------------------------------------------
-FROM golang:$GOLANG_VERSION AS binary-stage
+FROM golang:$GOLANG_VERSION AS gotenberg-binary-stage
 
 ARG GOTENBERG_VERSION
-ENV CGO_ENABLED 0
+ENV CGO_ENABLED=0
 
 # Define the working directory outside of $GOPATH (we're using go modules).
 WORKDIR /home
@@ -36,10 +61,9 @@ ARG GOTENBERG_USER_GID
 ARG GOTENBERG_USER_UID
 ARG NOTO_COLOR_EMOJI_VERSION
 ARG PDFTK_VERSION
-ARG TMP_CHOMIUM_VERSION_ARMHF="116.0.5845.180-1~deb12u1"
 
 LABEL org.opencontainers.image.title="Gotenberg" \
-      org.opencontainers.image.description="A Docker-powered stateless API for PDF files." \
+      org.opencontainers.image.description="A containerized API for seamless PDF conversion." \
       org.opencontainers.image.version="$GOTENBERG_VERSION" \
       org.opencontainers.image.authors="Julien Neuhart <neuhart.julien@gmail.com>" \
       org.opencontainers.image.documentation="https://gotenberg.dev" \
@@ -57,6 +81,7 @@ RUN \
     # Install system dependencies required for the next instructions or debugging.
     # Note: tini is a helper for reaping zombie processes.
     apt-get update -qq &&\
+    apt-get upgrade -yqq &&\
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends curl gnupg tini python3 default-jre-headless &&\
     # Cleanup.
     # Note: the Debian image does automatically a clean after each install thanks to a hook.
@@ -71,6 +96,7 @@ RUN \
     # https://help.accusoft.com/PrizmDoc/v12.1/HTML/Installing_Asian_Fonts_on_Ubuntu_and_Debian.html.
     curl -o ./ttf-mscorefonts-installer_3.8.1_all.deb http://httpredir.debian.org/debian/pool/contrib/m/msttcorefonts/ttf-mscorefonts-installer_3.8.1_all.deb &&\
     apt-get update -qq &&\
+    apt-get upgrade -yqq &&\
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends \
     ./ttf-mscorefonts-installer_3.8.1_all.deb \
     culmus \
@@ -120,27 +146,18 @@ RUN \
     # Install either Google Chrome stable on amd64 architecture or
     # Chromium on other architectures.
     # See https://github.com/gotenberg/gotenberg/issues/328.
-    # FIXME:
-    # armhf is currently not working with the latest version of Chromium.
-    # See: https://github.com/gotenberg/gotenberg/issues/709.
     /bin/bash -c \
     'set -e &&\
     if [[ "$(dpkg --print-architecture)" == "amd64" ]]; then \
       curl https://dl.google.com/linux/linux_signing_key.pub | apt-key add - &&\
       echo "deb http://dl.google.com/linux/chrome/deb/ stable main" | tee /etc/apt/sources.list.d/google-chrome.list &&\
       apt-get update -qq &&\
+      apt-get upgrade -yqq &&\
       DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends --allow-unauthenticated google-chrome-stable &&\
       mv /usr/bin/google-chrome-stable /usr/bin/chromium; \
-    elif [[ "$(dpkg --print-architecture)" == "armhf" ]]; then \
-      apt-get update -qq &&\
-      DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends devscripts &&\
-      debsnap chromium-common "$TMP_CHOMIUM_VERSION_ARMHF" -v --force --binary --architecture armhf &&\
-      debsnap chromium "$TMP_CHOMIUM_VERSION_ARMHF" -v --force --binary --architecture armhf &&\
-      DEBIAN_FRONTEND=noninteractive apt-get install --fix-broken -y -qq --no-install-recommends "./binary-chromium-common/chromium-common_${TMP_CHOMIUM_VERSION_ARMHF}_armhf.deb" "./binary-chromium/chromium_${TMP_CHOMIUM_VERSION_ARMHF}_armhf.deb" &&\
-      DEBIAN_FRONTEND=noninteractive apt-get purge -y -qq devscripts &&\
-      rm -rf ./binary-chromium-common/* ./binary-chromium/*; \
     else \
       apt-get update -qq &&\
+      apt-get upgrade -yqq &&\
       DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends chromium; \
     fi' &&\
     # Verify installation.
@@ -152,8 +169,9 @@ RUN \
     # Install LibreOffice & unoconverter.
     echo "deb http://deb.debian.org/debian bookworm-backports main" >> /etc/apt/sources.list &&\
     apt-get update -qq &&\
+    apt-get upgrade -yqq &&\
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends -t bookworm-backports libreoffice &&\
-    curl -Ls https://raw.githubusercontent.com/gotenberg/unoconverter/v0.0.1/unoconv -o /usr/bin/unoconverter &&\
+    curl -Ls https://raw.githubusercontent.com/gotenberg/unoconverter/v0.1.1/unoconv -o /usr/bin/unoconverter &&\
     chmod +x /usr/bin/unoconverter &&\
     # unoconverter will look for the Python binary, which has to be at version 3.
     ln -s /usr/bin/python3 /usr/bin/python &&\
@@ -171,6 +189,7 @@ RUN \
     echo '#!/bin/bash\n\nexec java -jar /usr/bin/pdftk-all.jar "$@"' > /usr/bin/pdftk && \
     chmod +x /usr/bin/pdftk &&\
     apt-get update -qq &&\
+    apt-get upgrade -yqq &&\
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends qpdf exiftool &&\
     # See https://github.com/nextcloud/docker/issues/380.
     mkdir -p /usr/share/man/man1 &&\
@@ -187,16 +206,20 @@ RUN \
 # https://github.com/arachnys/athenapdf/commit/ba25a8d80a25d08d58865519c4cd8756dc9a336d.
 COPY build/fonts.conf /etc/fonts/conf.d/100-gotenberg.conf
 
-# Copy the Gotenberg binary from the binary stage.
-COPY --from=binary-stage /home/gotenberg /usr/bin/
+# Copy the pdfcpu binary from the pdfcpu-binary-stage.
+COPY --from=pdfcpu-binary-stage /home/pdfcpu /usr/bin/
+
+# Copy the Gotenberg binary from the gotenberg-binary-stage.
+COPY --from=gotenberg-binary-stage /home/gotenberg /usr/bin/
 
 # Environment variables required by modules or else.
-ENV CHROMIUM_BIN_PATH /usr/bin/chromium
-ENV LIBREOFFICE_BIN_PATH /usr/lib/libreoffice/program/soffice.bin
-ENV UNOCONVERTER_BIN_PATH /usr/bin/unoconverter
-ENV PDFTK_BIN_PATH /usr/bin/pdftk
-ENV QPDF_BIN_PATH /usr/bin/qpdf
-ENV EXIFTOOL_BIN_PATH /usr/bin/exiftool
+ENV CHROMIUM_BIN_PATH=/usr/bin/chromium
+ENV LIBREOFFICE_BIN_PATH=/usr/lib/libreoffice/program/soffice.bin
+ENV UNOCONVERTER_BIN_PATH=/usr/bin/unoconverter
+ENV PDFTK_BIN_PATH=/usr/bin/pdftk
+ENV QPDF_BIN_PATH=/usr/bin/qpdf
+ENV EXIFTOOL_BIN_PATH=/usr/bin/exiftool
+ENV PDFCPU_BIN_PATH=/usr/bin/pdfcpu
 
 USER gotenberg
 WORKDIR /home/gotenberg

build/Dockerfile.cloudrun

@@ -1,7 +1,8 @@
+ARG DOCKER_REGISTRY
 ARG DOCKER_REPOSITORY
 ARG GOTENBERG_VERSION
 
-FROM $DOCKER_REPOSITORY/gotenberg:$GOTENBERG_VERSION
+FROM $DOCKER_REGISTRY/$DOCKER_REPOSITORY:$GOTENBERG_VERSION
 
 USER root
 

cmd/gotenberg.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"os/signal"
+	"strings"
 	"syscall"
 	"time"
 
@@ -23,7 +24,7 @@ const banner = `
 \___/\___/\__/\__/_//_/_.__/\__/_/  \_, / 
                                    /___/
 
-A Docker-powered stateless API for PDF files.
+A containerized API for seamless PDF conversion.
 Version: %s
 -------------------------------------------------------
 `
@@ -35,10 +36,12 @@ var Version = "snapshot"
 // Run starts the Gotenberg application. Call this in the main of your program.
 func Run() {
 	fmt.Printf(banner, Version)
+	gotenberg.Version = Version
 
 	// Create the root FlagSet and adds the modules flags to it.
 	fs := flag.NewFlagSet("gotenberg", flag.ExitOnError)
 	fs.Duration("gotenberg-graceful-shutdown-duration", time.Duration(30)*time.Second, "Set the graceful shutdown duration")
+	fs.Bool("gotenberg-build-debug-data", true, "Set if build data is needed")
 
 	descriptors := gotenberg.GetModuleDescriptors()
 	var modsInfo string
@@ -49,14 +52,42 @@ func Run() {
 
 	fmt.Printf("[SYSTEM] modules: %s\n", modsInfo)
 
-	// Parse the flags...
+	// Parse the flags.
 	err := fs.Parse(os.Args[1:])
 	if err != nil {
 		fmt.Println(err)
 		os.Exit(1)
 	}
 
-	// ...and create a wrapper around those.
+	// Override their values if the corresponding environment variables are
+	// set.
+	fs.VisitAll(func(f *flag.Flag) {
+		envName := strings.ToUpper(strings.ReplaceAll(f.Name, "-", "_"))
+		val, ok := os.LookupEnv(envName)
+		if !ok {
+			return
+		}
+
+		sliceVal, ok := f.Value.(flag.SliceValue)
+		if ok {
+			// We don't want to append the values (default pflag behavior).
+			items := strings.Split(val, ",")
+			err = sliceVal.Replace(items)
+			if err != nil {
+				fmt.Printf("[FATAL] invalid overriding value '%s' from %s: %v\n", val, envName, err)
+				os.Exit(1)
+			}
+			return
+		}
+
+		err = f.Value.Set(val)
+		if err != nil {
+			fmt.Printf("[FATAL] invalid overriding value '%s' from %s: %v\n", val, envName, err)
+			os.Exit(1)
+		}
+	})
+
+	// Create a wrapper around our flags.
 	parsedFlags := gotenberg.ParsedFlags{FlagSet: fs}
 
 	// Get the graceful shutdown duration.
@@ -107,6 +138,11 @@ func Run() {
 		}(l.(gotenberg.SystemLogger))
 	}
 
+	if parsedFlags.MustBool("gotenberg-build-debug-data") {
+		// Build the debug data.
+		gotenberg.BuildDebug(ctx)
+	}
+
 	quit := make(chan os.Signal, 1)
 
 	// We'll accept graceful shutdowns when quit via SIGINT (Ctrl+C) or SIGTERM (Kubernetes).

go.mod

@@ -1,68 +1,128 @@
 module github.com/gotenberg/gotenberg/v8
 
-go 1.21
+go 1.24.0
 
 require (
 	github.com/alexliesenfeld/health v0.8.0
-	github.com/andybalholm/brotli v1.1.0 // indirect
+	github.com/andybalholm/brotli v1.1.1 // indirect
 	github.com/barasher/go-exiftool v1.10.0
-	github.com/chromedp/cdproto v0.0.0-20240312231614-1e5096e63154
-	github.com/chromedp/chromedp v0.9.5
-	github.com/golang/snappy v0.0.4 // indirect
+	github.com/chromedp/cdproto v0.0.0-20250403032234-65de8f5d025b
+	github.com/chromedp/chromedp v0.13.6
 	github.com/google/uuid v1.6.0
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
-	github.com/hashicorp/go-retryablehttp v0.7.5
-	github.com/klauspost/compress v1.17.7 // indirect
+	github.com/hashicorp/go-retryablehttp v0.7.7
+	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/klauspost/pgzip v1.2.6 // indirect
-	github.com/labstack/echo/v4 v4.11.4
+	github.com/labstack/echo/v4 v4.13.3
 	github.com/labstack/gommon v0.4.2
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/mholt/archiver/v3 v3.5.1
-	github.com/microcosm-cc/bluemonday v1.0.26
-	github.com/nwaples/rardecode v1.1.3 // indirect
-	github.com/pdfcpu/pdfcpu v0.7.0
-	github.com/pierrec/lz4/v4 v4.1.21 // indirect
-	github.com/prometheus/client_golang v1.19.0
+	github.com/microcosm-cc/bluemonday v1.0.27
+	github.com/pierrec/lz4/v4 v4.1.22 // indirect
+	github.com/prometheus/client_golang v1.22.0
 	github.com/russross/blackfriday/v2 v2.1.0
-	github.com/spf13/pflag v1.0.5
-	github.com/ulikunitz/xz v0.5.11 // indirect
+	github.com/spf13/pflag v1.0.6
+	github.com/ulikunitz/xz v0.5.12 // indirect
 	go.uber.org/multierr v1.11.0
 	go.uber.org/zap v1.27.0
-	golang.org/x/crypto v0.21.0 // indirect
-	golang.org/x/image v0.15.0 // indirect
-	golang.org/x/net v0.22.0
-	golang.org/x/sync v0.6.0
-	golang.org/x/sys v0.18.0 // indirect
-	golang.org/x/term v0.18.0
-	golang.org/x/text v0.14.0
+	golang.org/x/crypto v0.37.0 // indirect
+	golang.org/x/net v0.39.0
+	golang.org/x/sync v0.13.0
+	golang.org/x/sys v0.32.0 // indirect
+	golang.org/x/term v0.31.0
+	golang.org/x/text v0.24.0
 )
 
-require github.com/dlclark/regexp2 v1.11.0
-
 require (
+	github.com/cucumber/godog v0.15.0
+	github.com/dlclark/regexp2 v1.11.5
+	github.com/docker/docker v28.0.4+incompatible
+	github.com/docker/go-connections v0.5.0
+	github.com/mholt/archives v0.1.1
+	github.com/shirou/gopsutil/v4 v4.25.3
+	github.com/testcontainers/testcontainers-go v0.36.0
+)
+
+require (
+	dario.cat/mergo v1.0.1 // indirect
+	github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/STARRY-S/zip v0.2.3 // indirect
 	github.com/aymerick/douceur v0.2.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/chromedp/sysutil v1.0.0 // indirect
-	github.com/dsnet/compress v0.0.2-0.20210315054119-f66993602bf5 // indirect
+	github.com/bodgit/plumbing v1.3.0 // indirect
+	github.com/bodgit/sevenzip v1.6.0 // indirect
+	github.com/bodgit/windows v1.0.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/chromedp/sysutil v1.1.0 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
+	github.com/cpuguy83/dockercfg v0.3.2 // indirect
+	github.com/cucumber/gherkin/go/v26 v26.2.0 // indirect
+	github.com/cucumber/messages/go/v21 v21.0.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 // indirect
+	github.com/ebitengine/purego v0.8.2 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-json-experiment/json v0.0.0-20250223041408-d3c622f1b874 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/gobwas/httphead v0.1.0 // indirect
 	github.com/gobwas/pool v0.2.1 // indirect
-	github.com/gobwas/ws v1.3.2 // indirect
+	github.com/gobwas/ws v1.4.0 // indirect
+	github.com/gofrs/uuid v4.4.0+incompatible // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/gorilla/css v1.0.1 // indirect
-	github.com/hhrutter/lzw v1.0.0 // indirect
-	github.com/hhrutter/tiff v1.0.1 // indirect
-	github.com/josharian/intern v1.0.0 // indirect
-	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
+	github.com/hashicorp/go-memdb v1.3.5 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/hashicorp/golang-lru v1.0.2 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/lufia/plan9stats v0.0.0-20250317134145-8bc96cf8fc35 // indirect
+	github.com/magiconair/properties v1.8.10 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
+	github.com/minio/minlz v1.0.0 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/sys/sequential v0.6.0 // indirect
+	github.com/moby/sys/user v0.4.0 // indirect
+	github.com/moby/sys/userns v0.1.0 // indirect
+	github.com/moby/term v0.5.2 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/nwaples/rardecode/v2 v2.1.1 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_model v0.6.0 // indirect
-	github.com/prometheus/common v0.51.0 // indirect
-	github.com/prometheus/procfs v0.13.0 // indirect
-	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.63.0 // indirect
+	github.com/prometheus/procfs v0.16.0 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/sorairolake/lzip-go v0.3.7 // indirect
+	github.com/stretchr/testify v1.10.0 // indirect
+	github.com/therootcompany/xz v1.0.1 // indirect
+	github.com/tklauser/go-sysconf v0.3.15 // indirect
+	github.com/tklauser/numcpus v0.10.0 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
+	go.opentelemetry.io/otel v1.35.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.19.0 // indirect
+	go.opentelemetry.io/otel/metric v1.35.0 // indirect
+	go.opentelemetry.io/otel/trace v1.35.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
+	go4.org v0.0.0-20230225012048-214862532bf5 // indirect
+	golang.org/x/time v0.11.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20231120223509-83a465c0220f // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,168 +1,557 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 h1:bvDV9vkmnHYOMsOr4WLk+Vo07yKIzd94sVoIqshQ4bU=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24/go.mod h1:8o94RPi1/7XTJvwPpRSzSUedZrtlirdB3r9Z20bi2f8=
+github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c h1:udKWzYgxTojEKWjV8V+WSxDXJ4NFATAsZjh8iIbsQIg=
+github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
+github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
+github.com/STARRY-S/zip v0.2.3/go.mod h1:lqJ9JdeRipyOQJrYSOtpNAiaesFO6zVDsE8GIGFaoSk=
 github.com/alexliesenfeld/health v0.8.0 h1:lCV0i+ZJPTbqP7LfKG7p3qZBl5VhelwUFCIVWl77fgk=
 github.com/alexliesenfeld/health v0.8.0/go.mod h1:TfNP0f+9WQVWMQRzvMUjlws4ceXKEL3WR+6Hp95HUFc=
-github.com/andybalholm/brotli v1.0.1/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y=
-github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
-github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
+github.com/andybalholm/brotli v1.1.1 h1:PR2pgnyFznKEugtsUo0xLdDop5SKXd5Qf5ysW+7XdTA=
+github.com/andybalholm/brotli v1.1.1/go.mod h1:05ib4cKhjx3OQYUY22hTVd34Bc8upXjOLL2rKwwZBoA=
 github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
 github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
 github.com/barasher/go-exiftool v1.10.0 h1:f5JY5jc42M7tzR6tbL9508S2IXdIcG9QyieEXNMpIhs=
 github.com/barasher/go-exiftool v1.10.0/go.mod h1:F9s/a3uHSM8YniVfwF+sbQUtP8Gmh9nyzigNF+8vsWo=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/chromedp/cdproto v0.0.0-20240202021202-6d0b6a386732/go.mod h1:GKljq0VrfU4D5yc+2qA6OVr8pmO/MBbPEWqWQ/oqGEs=
-github.com/chromedp/cdproto v0.0.0-20240312231614-1e5096e63154 h1:jeAmkzyOAQBPRmZMhX+i/CJv0VViLkHk1nF0qx8s0Mk=
-github.com/chromedp/cdproto v0.0.0-20240312231614-1e5096e63154/go.mod h1:GKljq0VrfU4D5yc+2qA6OVr8pmO/MBbPEWqWQ/oqGEs=
-github.com/chromedp/chromedp v0.9.5 h1:viASzruPJOiThk7c5bueOUY91jGLJVximoEMGoH93rg=
-github.com/chromedp/chromedp v0.9.5/go.mod h1:D4I2qONslauw/C7INoCir1BJkSwBYMyZgx8X276z3+Y=
-github.com/chromedp/sysutil v1.0.0 h1:+ZxhTpfpZlmchB58ih/LBHX52ky7w2VhQVKQMucy3Ic=
-github.com/chromedp/sysutil v1.0.0/go.mod h1:kgWmDdq8fTzXYcKIBqIYvRRTnYb9aNS9moAV0xufSww=
+github.com/bodgit/plumbing v1.3.0 h1:pf9Itz1JOQgn7vEOE7v7nlEfBykYqvUYioC61TwWCFU=
+github.com/bodgit/plumbing v1.3.0/go.mod h1:JOTb4XiRu5xfnmdnDJo6GmSbSbtSyufrsyZFByMtKEs=
+github.com/bodgit/sevenzip v1.6.0 h1:a4R0Wu6/P1o1pP/3VV++aEOcyeBxeO/xE2Y9NSTrr6A=
+github.com/bodgit/sevenzip v1.6.0/go.mod h1:zOBh9nJUof7tcrlqJFv1koWRrhz3LbDbUNngkuZxLMc=
+github.com/bodgit/windows v1.0.1 h1:tF7K6KOluPYygXa3Z2594zxlkbKPAOvqr97etrGNIz4=
+github.com/bodgit/windows v1.0.1/go.mod h1:a6JLwrB4KrTR5hBpp8FI9/9W9jJfeQ2h4XDXU74ZCdM=
+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
+github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/chromedp/cdproto v0.0.0-20250403032234-65de8f5d025b h1:jJmiCljLNTaq/O1ju9Bzz2MPpFlmiTn0F7LwCoeDZVw=
+github.com/chromedp/cdproto v0.0.0-20250403032234-65de8f5d025b/go.mod h1:NItd7aLkcfOA/dcMXvl8p1u+lQqioRMq/SqDp71Pb/k=
+github.com/chromedp/chromedp v0.13.6 h1:xlNunMyzS5bu3r/QKrb3fzX6ow3WBQ6oao+J65PGZxk=
+github.com/chromedp/chromedp v0.13.6/go.mod h1:h8GPP6ZtLMLsU8zFbTcb7ZDGCvCy8j/vRoFmRltQx9A=
+github.com/chromedp/sysutil v1.1.0 h1:PUFNv5EcprjqXZD9nJb9b/c9ibAbxiYo4exNWZyipwM=
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package-lock.json

@@ -0,0 +1,180 @@
+{
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@cucumber/messages": ">=19.1.4 <=22"
+      }
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+    "node_modules/@cucumber/gherkin/node_modules/@cucumber/messages": {
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+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@cucumber/gherkin/node_modules/uuid": {
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+      "dev": true,
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+      "license": "Apache-2.0"
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+      "dev": true,
+      "license": "0BSD"
+    },
+    "node_modules/uuid": {
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+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.1.tgz",
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+      "dev": true,
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+        "https://github.com/sponsors/ctavan"
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+}

package.json

@@ -0,0 +1,7 @@
+{
+  "devDependencies": {
+    "prettier": "3.5.2",
+    "prettier-plugin-gherkin": "^3.1.1",
+    "prettier-plugin-sh": "^0.15.0"
+  }
+}

pkg/gotenberg/cmd.go

@@ -156,7 +156,7 @@ func (cmd *Cmd) pipeOutput() error {
 		r := bufio.NewReader(reader)
 		defer func(reader io.ReadCloser) {
 			err := reader.Close()
-			if err != nil {
+			if err != nil && !strings.Contains(err.Error(), "file already closed") {
 				logger.Error(fmt.Sprintf("close reader: %s", err))
 			}
 		}(reader)

pkg/gotenberg/cmd_test.go

@@ -1,317 +0,0 @@
-package gotenberg
-
-import (
-	"context"
-	"testing"
-	"time"
-
-	"go.uber.org/zap"
-)
-
-func TestCommand(t *testing.T) {
-	cmd := Command(zap.NewNop(), "foo")
-	if !cmd.process.SysProcAttr.Setpgid {
-		t.Error("expected cmd.process.SysProcAttr.Setpgid to be true")
-	}
-}
-
-func TestCommandContext(t *testing.T) {
-	tests := []struct {
-		scenario                  string
-		ctx                       context.Context
-		expectCommandContextError bool
-	}{
-		{
-			scenario:                  "nominal behavior",
-			ctx:                       context.Background(),
-			expectCommandContextError: false,
-		},
-		{
-			scenario:                  "nil context",
-			ctx:                       nil,
-			expectCommandContextError: true,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.scenario, func(t *testing.T) {
-			cmd, err := CommandContext(tc.ctx, zap.NewNop(), "foo")
-
-			if err == nil && !cmd.process.SysProcAttr.Setpgid {
-				t.Fatal("expected cmd.process.SysProcAttr.Setpgid to be true")
-			}
-
-			if !tc.expectCommandContextError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectCommandContextError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestCmd_Start(t *testing.T) {
-	tests := []struct {
-		scenario         string
-		cmd              *Cmd
-		expectStartError bool
-	}{
-		{
-			scenario:         "nominal behavior",
-			cmd:              Command(zap.NewNop(), "echo", "Hello", "World"),
-			expectStartError: false,
-		},
-		{
-			scenario:         "start error",
-			cmd:              Command(zap.NewNop(), "foo"),
-			expectStartError: true,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.scenario, func(t *testing.T) {
-			err := tc.cmd.Start()
-
-			if !tc.expectStartError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectStartError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestCmd_Wait(t *testing.T) {
-	tests := []struct {
-		scenario        string
-		cmd             *Cmd
-		expectWaitError bool
-	}{
-		{
-			scenario: "nominal behavior",
-			cmd: func() *Cmd {
-				cmd := Command(zap.NewNop(), "echo", "Hello", "World")
-				err := cmd.Start()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return cmd
-			}(),
-			expectWaitError: false,
-		},
-		{
-			scenario: "wait error",
-			cmd: func() *Cmd {
-				cmd := Command(zap.NewNop(), "echo", "Hello", "World")
-				err := cmd.Start()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				err = cmd.Kill()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return cmd
-			}(),
-			expectWaitError: true,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.scenario, func(t *testing.T) {
-			err := tc.cmd.Wait()
-
-			if !tc.expectWaitError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectWaitError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestCmd_Exec(t *testing.T) {
-	tests := []struct {
-		scenario        string
-		cmd             *Cmd
-		timeout         time.Duration
-		expectExecError bool
-	}{
-		{
-			scenario: "nominal behavior",
-			cmd: func() *Cmd {
-				cmd, err := CommandContext(context.Background(), zap.NewNop(), "echo", "Hello", "World")
-				if err != nil {
-					t.Fatalf("expected no error from CommandContext(), but got: %v", err)
-				}
-				return cmd
-			}(),
-			expectExecError: false,
-		},
-		{
-			scenario:        "nil context",
-			cmd:             Command(zap.NewNop(), "echo", "Hello", "World"),
-			expectExecError: true,
-		},
-		{
-			scenario: "start error",
-			cmd: func() *Cmd {
-				cmd, err := CommandContext(context.Background(), zap.NewNop(), "foo")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return cmd
-			}(),
-			expectExecError: true,
-		},
-		{
-			scenario:        "context done",
-			cmd:             Command(zap.NewNop(), "sleep", "2"),
-			timeout:         time.Duration(1) * time.Second,
-			expectExecError: true,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.scenario, func(t *testing.T) {
-			if tc.timeout > 0 {
-				ctx, cancel := context.WithTimeout(context.TODO(), tc.timeout)
-				defer cancel()
-
-				tc.cmd.ctx = ctx
-			}
-
-			_, err := tc.cmd.Exec()
-
-			if !tc.expectExecError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectExecError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestCmd_pipeOutput(t *testing.T) {
-	tests := []struct {
-		scenario              string
-		cmd                   *Cmd
-		run                   bool
-		expectPipeOutputError bool
-	}{
-		{
-			scenario:              "nominal behavior",
-			cmd:                   Command(zap.NewExample(), "echo", "Hello", "World"),
-			run:                   true,
-			expectPipeOutputError: false,
-		},
-		{
-			scenario:              "no debug, no pipe",
-			cmd:                   Command(zap.NewNop(), "echo", "Hello", "World"),
-			run:                   false,
-			expectPipeOutputError: false,
-		},
-		{
-			scenario: "stdout already piped",
-			cmd: func() *Cmd {
-				cmd := Command(zap.NewExample(), "echo", "Hello", "World")
-				_, err := cmd.process.StdoutPipe()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return cmd
-			}(),
-			run:                   false,
-			expectPipeOutputError: true,
-		},
-		{
-			scenario: "stderr already piped",
-			cmd: func() *Cmd {
-				cmd := Command(zap.NewExample(), "echo", "Hello", "World")
-				_, err := cmd.process.StderrPipe()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return cmd
-			}(),
-			run:                   false,
-			expectPipeOutputError: true,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.scenario, func(t *testing.T) {
-			err := tc.cmd.pipeOutput()
-
-			if tc.run {
-				errStart := tc.cmd.process.Start()
-				if errStart != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-			}
-
-			if !tc.expectPipeOutputError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectPipeOutputError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestCmd_Kill(t *testing.T) {
-	tests := []struct {
-		scenario string
-		cmd      *Cmd
-	}{
-		{
-			scenario: "nominal behavior",
-			cmd: func() *Cmd {
-				cmd := Command(zap.NewNop(), "sleep", "60")
-				err := cmd.process.Start()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return cmd
-			}(),
-		},
-		{
-			scenario: "no process",
-			cmd:      &Cmd{logger: zap.NewNop()},
-		},
-		{
-			scenario: "process already killed",
-			cmd: func() *Cmd {
-				cmd := Command(zap.NewNop(), "sleep", "60")
-				err := cmd.process.Start()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				err = cmd.Kill()
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return cmd
-			}(),
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.scenario, func(t *testing.T) {
-			err := tc.cmd.Kill()
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-		})
-	}
-}

pkg/gotenberg/context_test.go

@@ -5,23 +5,6 @@ import (
 	"testing"
 )
 
-func TestNewContext(t *testing.T) {
-	if NewContext(ParsedFlags{}, nil) == nil {
-		t.Error("expected a non-nil value")
-	}
-}
-
-func TestContext_ParsedFlags(t *testing.T) {
-	ctx := NewContext(ParsedFlags{}, nil)
-
-	actual := ctx.ParsedFlags()
-	expect := ParsedFlags{}
-
-	if actual != expect {
-		t.Errorf("expected %v but got %v", expect, actual)
-	}
-}
-
 func TestContext_Module(t *testing.T) {
 	for _, tc := range []struct {
 		scenario    string

pkg/gotenberg/debug.go

@@ -0,0 +1,68 @@
+package gotenberg
+
+import (
+	"runtime"
+	"sort"
+	"sync"
+
+	flag "github.com/spf13/pflag"
+)
+
+// DebugInfo gathers data for debugging.
+type DebugInfo struct {
+	Version               string                            `json:"version"`
+	Architecture          string                            `json:"architecture"`
+	Modules               []string                          `json:"modules"`
+	ModulesAdditionalData map[string]map[string]interface{} `json:"modules_additional_data"`
+	Flags                 map[string]interface{}            `json:"flags"`
+}
+
+// BuildDebug builds the debug data from modules.
+func BuildDebug(ctx *Context) {
+	debugMu.Lock()
+	defer debugMu.Unlock()
+
+	debug = &DebugInfo{
+		Version:               Version,
+		Architecture:          runtime.GOARCH,
+		Modules:               make([]string, len(ctx.moduleInstances)),
+		ModulesAdditionalData: make(map[string]map[string]interface{}),
+		Flags:                 make(map[string]interface{}),
+	}
+
+	i := 0
+	for ID, mod := range ctx.moduleInstances {
+		debug.Modules[i] = ID
+		i++
+
+		debuggable, ok := mod.(Debuggable)
+		if !ok {
+			continue
+		}
+
+		debug.ModulesAdditionalData[ID] = debuggable.Debug()
+	}
+
+	sort.Sort(AlphanumericSort(debug.Modules))
+
+	ctx.ParsedFlags().VisitAll(func(f *flag.Flag) {
+		debug.Flags[f.Name] = f.Value.String()
+	})
+}
+
+// Debug returns the debug data.
+func Debug() DebugInfo {
+	debugMu.Lock()
+	defer debugMu.Unlock()
+
+	if debug == nil {
+		return DebugInfo{}
+	}
+
+	return *debug
+}
+
+var (
+	debug   *DebugInfo
+	debugMu sync.Mutex
+)

pkg/gotenberg/debug_test.go

@@ -0,0 +1,72 @@
+package gotenberg
+
+import (
+	"reflect"
+	"runtime"
+	"testing"
+
+	flag "github.com/spf13/pflag"
+)
+
+func TestBuildDebug(t *testing.T) {
+	if !reflect.DeepEqual(Debug(), DebugInfo{}) {
+		t.Errorf("Debug() should return empty debug data")
+	}
+
+	fs := flag.NewFlagSet("gotenberg", flag.ExitOnError)
+	fs.String("foo", "bar", "Set foo")
+	ctx := NewContext(ParsedFlags{
+		FlagSet: fs,
+	}, func() []ModuleDescriptor {
+		mod1 := &struct {
+			ModuleMock
+		}{}
+		mod1.DescriptorMock = func() ModuleDescriptor {
+			return ModuleDescriptor{ID: "foo", New: func() Module { return mod1 }}
+		}
+		mod2 := &struct {
+			ModuleMock
+			DebuggableMock
+		}{}
+		mod2.DescriptorMock = func() ModuleDescriptor {
+			return ModuleDescriptor{ID: "bar", New: func() Module { return mod2 }}
+		}
+		mod2.DebugMock = func() map[string]interface{} {
+			return map[string]interface{}{
+				"foo": "bar",
+			}
+		}
+
+		return []ModuleDescriptor{mod1.Descriptor(), mod2.Descriptor()}
+	}())
+
+	// Load modules.
+	_, err := ctx.Modules(new(Module))
+	if err != nil {
+		t.Errorf("expected no error but got: %v", err)
+	}
+
+	// Build debug data.
+	BuildDebug(ctx)
+
+	expect := DebugInfo{
+		Version:      Version,
+		Architecture: runtime.GOARCH,
+		Modules: []string{
+			"bar",
+			"foo",
+		},
+		ModulesAdditionalData: map[string]map[string]interface{}{
+			"bar": {
+				"foo": "bar",
+			},
+		},
+		Flags: map[string]interface{}{
+			"foo": "bar",
+		},
+	}
+
+	if !reflect.DeepEqual(expect, Debug()) {
+		t.Errorf("expected '%+v', bug got '%+v'", expect, Debug())
+	}
+}

pkg/gotenberg/env.go

@@ -0,0 +1,35 @@
+package gotenberg
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+// StringEnv retrieves the value of the environment variable named by the key.
+// If the variable is present in the environment and not empty, the value is
+// returned.
+func StringEnv(key string) (string, error) {
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return "", fmt.Errorf("environment variable '%s' does not exist", key)
+	}
+	if val == "" {
+		return "", fmt.Errorf("environment variable '%s' is empty", key)
+	}
+	return val, nil
+}
+
+// IntEnv relies on [StringEnv] and converts the values if it exists and is not
+// empty.
+func IntEnv(key string) (int, error) {
+	val, err := StringEnv(key)
+	if err != nil {
+		return 0, err
+	}
+	intVal, err := strconv.Atoi(val)
+	if err != nil {
+		return 0, fmt.Errorf("get int value of environment variable '%s': %w", key, err)
+	}
+	return intVal, nil
+}

pkg/gotenberg/env_test.go

@@ -0,0 +1,134 @@
+package gotenberg
+
+import (
+	"os"
+	"testing"
+)
+
+func TestStringEnv(t *testing.T) {
+	for _, tc := range []struct {
+		scenario    string
+		key         string
+		setEnv      func()
+		expectVal   string
+		expectError bool
+	}{
+		{
+			scenario:    "non-existing environment variable",
+			key:         "NON_EXISTING",
+			expectVal:   "",
+			expectError: true,
+		},
+		{
+			scenario: "empty environment variable",
+			key:      "EMPTY_STRING",
+			setEnv: func() {
+				err := os.Setenv("EMPTY_STRING", "")
+				if err != nil {
+					t.Fatalf("expected no error but got: %v", err)
+				}
+			},
+			expectVal:   "",
+			expectError: true,
+		},
+		{
+			scenario: "success",
+			key:      "EXISTING_STRING_VALUE",
+			setEnv: func() {
+				err := os.Setenv("EXISTING_STRING_VALUE", "foo")
+				if err != nil {
+					t.Fatalf("expected no error but got: %v", err)
+				}
+			},
+			expectVal:   "foo",
+			expectError: false,
+		},
+	} {
+		t.Run(tc.scenario, func(t *testing.T) {
+			if tc.setEnv != nil {
+				tc.setEnv()
+			}
+
+			val, err := StringEnv(tc.key)
+
+			if !tc.expectError && err != nil {
+				t.Fatalf("expected no error but got: %v", err)
+			}
+
+			if tc.expectError && err == nil {
+				t.Fatal("expected error but got none")
+			}
+
+			if tc.expectVal != val {
+				t.Errorf("expected value '%s' but got '%s'", tc.expectVal, val)
+			}
+		})
+	}
+}
+
+func TestIntEnv(t *testing.T) {
+	for _, tc := range []struct {
+		scenario    string
+		key         string
+		setEnv      func()
+		expectVal   int
+		expectError bool
+	}{
+		{
+			scenario: "empty environment variable",
+			key:      "EMPTY_INT",
+			setEnv: func() {
+				err := os.Setenv("EMPTY_INT", "")
+				if err != nil {
+					t.Fatalf("expected no error but got: %v", err)
+				}
+			},
+			expectVal:   0,
+			expectError: true,
+		},
+		{
+			scenario: "non-integer value",
+			key:      "NON_INTEGER",
+			setEnv: func() {
+				err := os.Setenv("NON_INTEGER", "foo")
+				if err != nil {
+					t.Fatalf("expected no error but got: %v", err)
+				}
+			},
+			expectVal:   0,
+			expectError: true,
+		},
+		{
+			scenario: "success",
+			key:      "EXISTING_INT_VALUE",
+			setEnv: func() {
+				err := os.Setenv("EXISTING_INT_VALUE", "123")
+				if err != nil {
+					t.Fatalf("expected no error but got: %v", err)
+				}
+			},
+			expectVal:   123,
+			expectError: false,
+		},
+	} {
+		t.Run(tc.scenario, func(t *testing.T) {
+			if tc.setEnv != nil {
+				tc.setEnv()
+			}
+
+			val, err := IntEnv(tc.key)
+
+			if !tc.expectError && err != nil {
+				t.Fatalf("expected no error but got: %v", err)
+			}
+
+			if tc.expectError && err == nil {
+				t.Fatal("expected error but got none")
+			}
+
+			if tc.expectVal != val {
+				t.Errorf("expected value %d but got %d", tc.expectVal, val)
+			}
+		})
+	}
+}

pkg/gotenberg/flags.go

@@ -168,33 +168,37 @@ func (f *ParsedFlags) MustDeprecatedDuration(deprecated string, newName string)
 	return f.MustDuration(newName)
 }
 
-// MustHumanReadableBytesString returns the human-readable bytes string of a
-// flag given by name.
+// MustHumanReadableBytes returns the human-readable bytes string of a flag
+// given by name.
 // It panics if an error occurs.
-func (f *ParsedFlags) MustHumanReadableBytesString(name string) string {
+func (f *ParsedFlags) MustHumanReadableBytes(name string) int64 {
 	val, err := f.GetString(name)
 	if err != nil {
 		panic(err)
 	}
 
-	_, err = bytes.Parse(val)
+	if val == "" {
+		return 0
+	}
+
+	b, err := bytes.Parse(val)
 	if err != nil {
 		panic(err)
 	}
 
-	return val
+	return b
 }
 
-// MustDeprecatedHumanReadableBytesString returns the human-readable bytes
-// string of a deprecated flag if it was explicitly set or the human-readable
-// bytes string of the new flag.
+// MustDeprecatedHumanReadableBytes returns the human-readable bytes of a
+// deprecated flag if it was explicitly set or the human-readable bytes string
+// of the new flag.
 // It panics if an error occurs.
-func (f *ParsedFlags) MustDeprecatedHumanReadableBytesString(deprecated string, newName string) string {
+func (f *ParsedFlags) MustDeprecatedHumanReadableBytes(deprecated string, newName string) int64 {
 	if f.Changed(deprecated) {
-		return f.MustHumanReadableBytesString(deprecated)
+		return f.MustHumanReadableBytes(deprecated)
 	}
 
-	return f.MustHumanReadableBytesString(newName)
+	return f.MustHumanReadableBytes(newName)
 }
 
 // MustRegexp returns the regular expression of a flag given by name.

pkg/gotenberg/flags_test.go

@@ -644,10 +644,11 @@ func TestParsedFlags_MustDeprecatedDuration(t *testing.T) {
 	}
 }
 
-func TestParsedFlags_MustHumanReadableBytesString(t *testing.T) {
+func TestParsedFlags_MustHumanReadableBytes(t *testing.T) {
 	fs := flag.NewFlagSet("tests", flag.ContinueOnError)
 	fs.String("foo", "1MB", "")
 	fs.String("bar", "1MB", "")
+	fs.String("qux", "", "")
 
 	err := fs.Parse([]string{"--foo=1GB", "--bar=foo"})
 	if err != nil {
@@ -671,6 +672,11 @@ func TestParsedFlags_MustHumanReadableBytesString(t *testing.T) {
 			name:        "bar",
 			expectPanic: true,
 		},
+		{
+			scenario:    "success: empty value",
+			name:        "qux",
+			expectPanic: false,
+		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
 			if tc.expectPanic {
@@ -689,31 +695,31 @@ func TestParsedFlags_MustHumanReadableBytesString(t *testing.T) {
 				}()
 			}
 
-			parsedFlags.MustHumanReadableBytesString(tc.name)
+			parsedFlags.MustHumanReadableBytes(tc.name)
 		})
 	}
 }
 
-func TestParsedFlags_MustDeprecatedHumanReadableBytesString(t *testing.T) {
+func TestParsedFlags_MustDeprecatedHumanReadableBytes(t *testing.T) {
 	for _, tc := range []struct {
 		scenario    string
 		rawFlags    []string
-		expectValue string
+		expectValue int64
 	}{
 		{
 			scenario:    "deprecated flag value",
 			rawFlags:    []string{"--foo=1MB"},
-			expectValue: "1MB",
+			expectValue: 1000000,
 		},
 		{
 			scenario:    "non-deprecated flag value",
 			rawFlags:    []string{"--bar=2MB"},
-			expectValue: "2MB",
+			expectValue: 2000000,
 		},
 		{
 			scenario:    "deprecated flag value > non-deprecated flag value",
 			rawFlags:    []string{"--foo=1MB", "--bar=2MB"},
-			expectValue: "1MB",
+			expectValue: 1000000,
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
@@ -728,9 +734,9 @@ func TestParsedFlags_MustDeprecatedHumanReadableBytesString(t *testing.T) {
 				t.Fatalf("expected no error but got: %v", err)
 			}
 
-			actual := parsedFlags.MustDeprecatedHumanReadableBytesString("foo", "bar")
+			actual := parsedFlags.MustDeprecatedHumanReadableBytes("foo", "bar")
 			if actual != tc.expectValue {
-				t.Errorf("expected '%s' but got '%s'", tc.expectValue, actual)
+				t.Errorf("expected %d but got %d", tc.expectValue, actual)
 			}
 		})
 	}

pkg/gotenberg/fs.go

@@ -7,18 +7,50 @@ import (
 	"github.com/google/uuid"
 )
 
+// MkdirAll defines the method signature for create a directory. Implement this
+// interface if you don't want to rely on [os.MkdirAll], notably for testing
+// purpose.
+type MkdirAll interface {
+	// MkdirAll uses the same signature as [os.MkdirAll].
+	MkdirAll(path string, perm os.FileMode) error
+}
+
+// OsMkdirAll implements the [MkdirAll] interface with [os.MkdirAll].
+type OsMkdirAll struct{}
+
+// MkdirAll is a wrapper around [os.MkdirAll].
+func (o *OsMkdirAll) MkdirAll(path string, perm os.FileMode) error { return os.MkdirAll(path, perm) }
+
+// PathRename defines the method signature for renaming files. Implement this
+// interface if you don't want to rely on [os.Rename], notably for testing
+// purpose.
+type PathRename interface {
+	// Rename uses the same signature as [os.Rename].
+	Rename(oldpath, newpath string) error
+}
+
+// OsPathRename implements the [PathRename] interface with [os.Rename].
+type OsPathRename struct{}
+
+// Rename is a wrapper around [os.Rename].
+func (o *OsPathRename) Rename(oldpath, newpath string) error {
+	return os.Rename(oldpath, newpath)
+}
+
 // FileSystem provides utilities for managing temporary directories. It creates
 // unique directory names based on UUIDs to ensure isolation of temporary files
 // for different modules.
 type FileSystem struct {
 	workingDir string
+	mkdirAll   MkdirAll
 }
 
 // NewFileSystem initializes a new [FileSystem] instance with a unique working
 // directory.
-func NewFileSystem() *FileSystem {
+func NewFileSystem(mkdirAll MkdirAll) *FileSystem {
 	return &FileSystem{
 		workingDir: uuid.NewString(),
+		mkdirAll:   mkdirAll,
 	}
 }
 
@@ -44,7 +76,7 @@ func (fs *FileSystem) NewDirPath() string {
 func (fs *FileSystem) MkdirAll() (string, error) {
 	path := fs.NewDirPath()
 
-	err := os.MkdirAll(path, 0o755)
+	err := fs.mkdirAll.MkdirAll(path, 0o755)
 	if err != nil {
 		return "", fmt.Errorf("create directory %s: %w", path, err)
 	}
@@ -52,10 +84,8 @@ func (fs *FileSystem) MkdirAll() (string, error) {
 	return path, nil
 }
 
-// PathRename defines the method signature for renaming files. Implement this
-// interface if you don't want to rely on [os.Rename], notably for testing
-// purpose.
-type PathRename interface {
-	// Rename uses the same signature as [os.Rename].
-	Rename(oldpath, newpath string) error
-}
+// Interface guards.
+var (
+	_ MkdirAll   = (*OsMkdirAll)(nil)
+	_ PathRename = (*OsPathRename)(nil)
+)

pkg/gotenberg/fs_test.go

@@ -1,55 +0,0 @@
-package gotenberg
-
-import (
-	"fmt"
-	"os"
-	"strings"
-	"testing"
-)
-
-func TestFileSystem_WorkingDir(t *testing.T) {
-	fs := NewFileSystem()
-	dirName := fs.WorkingDir()
-
-	if dirName == "" {
-		t.Error("expected directory name but got empty string")
-	}
-}
-
-func TestFileSystem_WorkingDirPath(t *testing.T) {
-	fs := NewFileSystem()
-	expectedPath := fmt.Sprintf("%s/%s", os.TempDir(), fs.WorkingDir())
-
-	if fs.WorkingDirPath() != expectedPath {
-		t.Errorf("expected path '%s' but got '%s'", expectedPath, fs.WorkingDirPath())
-	}
-}
-
-func TestFileSystem_NewDirPath(t *testing.T) {
-	fs := NewFileSystem()
-	newDir := fs.NewDirPath()
-	expectedPrefix := fs.WorkingDirPath()
-
-	if !strings.HasPrefix(newDir, expectedPrefix) {
-		t.Errorf("expected new directory to start with '%s' but got '%s'", expectedPrefix, newDir)
-	}
-}
-
-func TestFileSystem_MkdirAll(t *testing.T) {
-	fs := NewFileSystem()
-
-	newPath, err := fs.MkdirAll()
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-
-	_, err = os.Stat(newPath)
-	if os.IsNotExist(err) {
-		t.Errorf("expected directory '%s' to exist but it doesn't", newPath)
-	}
-
-	err = os.RemoveAll(fs.WorkingDirPath())
-	if err != nil {
-		t.Fatalf("expected no error while cleaning up but got: %v", err)
-	}
-}

pkg/gotenberg/gc.go

@@ -5,13 +5,14 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"time"
 
 	"go.uber.org/zap"
 )
 
 // GarbageCollect scans the root path and deletes files or directories with
-// names containing specific substrings.
-func GarbageCollect(logger *zap.Logger, rootPath string, includeSubstr []string) error {
+// names containing specific substrings and before a given experiation time.
+func GarbageCollect(logger *zap.Logger, rootPath string, includeSubstr []string, expirationTime time.Time) error {
 	logger = logger.Named("gc")
 
 	// To make sure that the next Walk method stays on
@@ -36,7 +37,7 @@ func GarbageCollect(logger *zap.Logger, rootPath string, includeSubstr []string)
 		}
 
 		for _, substr := range includeSubstr {
-			if strings.Contains(info.Name(), substr) || path == substr {
+			if (strings.Contains(info.Name(), substr) || path == substr) && info.ModTime().Before(expirationTime) {
 				err := os.RemoveAll(path)
 				if err != nil {
 					return fmt.Errorf("garbage collect '%s': %w", path, err)

pkg/gotenberg/gc_test.go

@@ -3,7 +3,9 @@ package gotenberg
 import (
 	"fmt"
 	"os"
+	"path"
 	"testing"
+	"time"
 
 	"github.com/google/uuid"
 	"go.uber.org/zap"
@@ -30,7 +32,7 @@ func TestGarbageCollect(t *testing.T) {
 
 				err := os.MkdirAll(path, 0o755)
 				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
+					t.Fatalf("expected no error but got: %v", err)
 				}
 
 				err = os.WriteFile(fmt.Sprintf("%s/a_foo_file", path), []byte{1}, 0o755)
@@ -50,7 +52,7 @@ func TestGarbageCollect(t *testing.T) {
 
 				return path
 			}(),
-			includeSubstr:   []string{"foo", fmt.Sprintf("%s/a_directory/a_bar_file", os.TempDir())},
+			includeSubstr:   []string{"foo", path.Join(os.TempDir(), "/a_directory/a_bar_file")},
 			expectError:     false,
 			expectExists:    []string{"a_baz_file"},
 			expectNotExists: []string{"a_foo_file", "a_bar_file"},
@@ -64,7 +66,7 @@ func TestGarbageCollect(t *testing.T) {
 				}
 			}()
 
-			err := GarbageCollect(zap.NewNop(), tc.rootPath, tc.includeSubstr)
+			err := GarbageCollect(zap.NewNop(), tc.rootPath, tc.includeSubstr, time.Now())
 
 			if !tc.expectError && err != nil {
 				t.Fatalf("expected no error but got: %v", err)

pkg/gotenberg/logging.go

@@ -1,6 +1,11 @@
 package gotenberg
 
-import "go.uber.org/zap"
+import (
+	"fmt"
+
+	"github.com/hashicorp/go-retryablehttp"
+	"go.uber.org/zap"
+)
 
 // LoggerProvider is an interface for a module that supplies a method for
 // creating a [zap.Logger] instance for use by other modules.
@@ -12,3 +17,41 @@ import "go.uber.org/zap"
 type LoggerProvider interface {
 	Logger(mod Module) (*zap.Logger, error)
 }
+
+// LeveledLogger is wrapper around a [zap.Logger] so that it may be used by a
+// [retryablehttp.Client].
+type LeveledLogger struct {
+	logger *zap.Logger
+}
+
+// NewLeveledLogger instantiates a [LeveledLogger].
+func NewLeveledLogger(logger *zap.Logger) *LeveledLogger {
+	return &LeveledLogger{
+		logger: logger,
+	}
+}
+
+// Error logs a message at error level using the wrapped zap.Logger.
+func (leveled LeveledLogger) Error(msg string, keysAndValues ...interface{}) {
+	leveled.logger.Error(fmt.Sprintf("%s: %+v", msg, keysAndValues))
+}
+
+// Warn logs a message at warning level using the wrapped zap.Logger.
+func (leveled LeveledLogger) Warn(msg string, keysAndValues ...interface{}) {
+	leveled.logger.Warn(fmt.Sprintf("%s: %+v", msg, keysAndValues))
+}
+
+// Info logs a message at info level using the wrapped zap.Logger.
+func (leveled LeveledLogger) Info(msg string, keysAndValues ...interface{}) {
+	leveled.logger.Info(fmt.Sprintf("%s: %+v", msg, keysAndValues))
+}
+
+// Debug logs a message at debug level using the wrapped zap.Logger.
+func (leveled LeveledLogger) Debug(msg string, keysAndValues ...interface{}) {
+	leveled.logger.Debug(fmt.Sprintf("%s: %+v", msg, keysAndValues))
+}
+
+// Interface guards.
+var (
+	_ retryablehttp.LeveledLogger = (*LeveledLogger)(nil)
+)

pkg/gotenberg/mocks.go

@@ -2,6 +2,7 @@ package gotenberg
 
 import (
 	"context"
+	"os"
 
 	"go.uber.org/zap"
 )
@@ -33,9 +34,21 @@ func (mod *ValidatorMock) Validate() error {
 	return mod.ValidateMock()
 }
 
+type DebuggableMock struct {
+	DebugMock func() map[string]interface{}
+}
+
+func (mod *DebuggableMock) Debug() map[string]interface{} {
+	return mod.DebugMock()
+}
+
 // PdfEngineMock is a mock for the [PdfEngine] interface.
+//
+//nolint:dupl
 type PdfEngineMock struct {
 	MergeMock         func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error
+	SplitMock         func(ctx context.Context, logger *zap.Logger, mode SplitMode, inputPath, outputDirPath string) ([]string, error)
+	FlattenMock       func(ctx context.Context, logger *zap.Logger, inputPath string) error
 	ConvertMock       func(ctx context.Context, logger *zap.Logger, formats PdfFormats, inputPath, outputPath string) error
 	ReadMetadataMock  func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error)
 	WriteMetadataMock func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error
@@ -45,6 +58,14 @@ func (engine *PdfEngineMock) Merge(ctx context.Context, logger *zap.Logger, inpu
 	return engine.MergeMock(ctx, logger, inputPaths, outputPath)
 }
 
+func (engine *PdfEngineMock) Split(ctx context.Context, logger *zap.Logger, mode SplitMode, inputPath, outputDirPath string) ([]string, error) {
+	return engine.SplitMock(ctx, logger, mode, inputPath, outputDirPath)
+}
+
+func (engine *PdfEngineMock) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
+	return engine.FlattenMock(ctx, logger, inputPath)
+}
+
 func (engine *PdfEngineMock) Convert(ctx context.Context, logger *zap.Logger, formats PdfFormats, inputPath, outputPath string) error {
 	return engine.ConvertMock(ctx, logger, formats, inputPath, outputPath)
 }
@@ -137,6 +158,15 @@ func (provider *MetricsProviderMock) Metrics() ([]Metric, error) {
 	return provider.MetricsMock()
 }
 
+// MkdirAllMock is a mock for the [MkdirAll] interface.
+type MkdirAllMock struct {
+	MkdirAllMock func(path string, perm os.FileMode) error
+}
+
+func (mkdirAll *MkdirAllMock) MkdirAll(path string, perm os.FileMode) error {
+	return mkdirAll.MkdirAllMock(path, perm)
+}
+
 // PathRenameMock is a mock for the [PathRename] interface.
 type PathRenameMock struct {
 	RenameMock func(oldpath, newpath string) error
@@ -156,4 +186,6 @@ var (
 	_ ProcessSupervisor = (*ProcessSupervisorMock)(nil)
 	_ LoggerProvider    = (*LoggerProviderMock)(nil)
 	_ MetricsProvider   = (*MetricsProviderMock)(nil)
+	_ MkdirAll          = (*MkdirAllMock)(nil)
+	_ PathRename        = (*PathRenameMock)(nil)
 )

pkg/gotenberg/mocks_test.go

@@ -1,219 +0,0 @@
-package gotenberg
-
-import (
-	"context"
-	"testing"
-
-	"go.uber.org/zap"
-)
-
-func TestModuleMock(t *testing.T) {
-	mock := &ModuleMock{
-		DescriptorMock: func() ModuleDescriptor {
-			return ModuleDescriptor{ID: "foo", New: func() Module {
-				return nil
-			}}
-		},
-	}
-
-	if mock.Descriptor().ID != "foo" {
-		t.Errorf("expected ID '%s' from ModuleMock.Descriptor, but got '%s'", "foo", mock.Descriptor().ID)
-	}
-}
-
-func TestProvisionerMock(t *testing.T) {
-	mock := &ProvisionerMock{
-		ProvisionMock: func(*Context) error {
-			return nil
-		},
-	}
-
-	err := mock.Provision(&Context{})
-	if err != nil {
-		t.Errorf("expected no error from ProvisionerMock.Provision, but got: %v", err)
-	}
-}
-
-func TestValidatorMock(t *testing.T) {
-	mock := &ValidatorMock{
-		ValidateMock: func() error {
-			return nil
-		},
-	}
-
-	err := mock.Validate()
-	if err != nil {
-		t.Errorf("expected no error from ValidatorMock.Validate, but got: %v", err)
-	}
-}
-
-func TestPDFEngineMock(t *testing.T) {
-	mock := &PdfEngineMock{
-		MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-			return nil
-		},
-		ConvertMock: func(ctx context.Context, logger *zap.Logger, formats PdfFormats, inputPath, outputPath string) error {
-			return nil
-		},
-		ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-			return nil, nil
-		},
-		WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-			return nil
-		},
-	}
-
-	err := mock.Merge(context.Background(), zap.NewNop(), nil, "")
-	if err != nil {
-		t.Errorf("expected no error from PdfEngineMock.Merge, but got: %v", err)
-	}
-
-	err = mock.Convert(context.Background(), zap.NewNop(), PdfFormats{}, "", "")
-	if err != nil {
-		t.Errorf("expected no error from PdfEngineMock.Convert, but got: %v", err)
-	}
-
-	_, err = mock.ReadMetadata(context.Background(), zap.NewNop(), "")
-	if err != nil {
-		t.Errorf("expected no error from PdfEngineMock.ReadMetadata, but got: %v", err)
-	}
-
-	err = mock.WriteMetadata(context.Background(), zap.NewNop(), map[string]interface{}{}, "")
-	if err != nil {
-		t.Errorf("expected no error from PdfEngineMock.WriteMetadata but got: %v", err)
-	}
-}
-
-func TestPDFEngineProviderMock(t *testing.T) {
-	mock := &PdfEngineProviderMock{
-		PdfEngineMock: func() (PdfEngine, error) {
-			return new(PdfEngineMock), nil
-		},
-	}
-
-	_, err := mock.PdfEngine()
-	if err != nil {
-		t.Errorf("expected no error from PdfEngineProviderMock.PdfEngine, but got: %v", err)
-	}
-}
-
-func TestProcessMock(t *testing.T) {
-	mock := &ProcessMock{
-		StartMock: func(logger *zap.Logger) error {
-			return nil
-		},
-		StopMock: func(logger *zap.Logger) error {
-			return nil
-		},
-		HealthyMock: func(logger *zap.Logger) bool {
-			return true
-		},
-	}
-
-	err := mock.Start(zap.NewNop())
-	if err != nil {
-		t.Errorf("expected no error from ProcessMock.Start, but got: %v", err)
-	}
-
-	err = mock.Stop(zap.NewNop())
-	if err != nil {
-		t.Errorf("expected no error from ProcessMock.Stop, but got: %v", err)
-	}
-
-	healthy := mock.Healthy(zap.NewNop())
-	if !healthy {
-		t.Error("expected true from ProcessMock.Healthy, but got false")
-	}
-}
-
-func TestProcessSupervisorMock(t *testing.T) {
-	mock := &ProcessSupervisorMock{
-		LaunchMock: func() error {
-			return nil
-		},
-		ShutdownMock: func() error {
-			return nil
-		},
-		HealthyMock: func() bool {
-			return true
-		},
-		RunMock: func(ctx context.Context, logger *zap.Logger, task func() error) error {
-			return nil
-		},
-		ReqQueueSizeMock: func() int64 {
-			return 0
-		},
-		RestartsCountMock: func() int64 {
-			return 0
-		},
-	}
-
-	err := mock.Launch()
-	if err != nil {
-		t.Errorf("expected no error from ProcessSupervisorMock.Launch, but got: %v", err)
-	}
-
-	err = mock.Shutdown()
-	if err != nil {
-		t.Errorf("expected no error from ProcessSupervisorMock.Shutdown, but got: %v", err)
-	}
-
-	healthy := mock.Healthy()
-	if !healthy {
-		t.Error("expected true from ProcessSupervisorMock.Healthy, but got false")
-	}
-
-	err = mock.Run(context.TODO(), zap.NewNop(), nil)
-	if err != nil {
-		t.Errorf("expected no error from ProcessSupervisorMock.Run, but got: %v", err)
-	}
-
-	size := mock.ReqQueueSize()
-	if size != 0 {
-		t.Errorf("expected 0 from ProcessSupervisorMock.ReqQueueSize, but got: %d", size)
-	}
-
-	restarts := mock.RestartsCount()
-	if restarts != 0 {
-		t.Errorf("expected 0 from ProcessSupervisorMock.RestartsCount, but got: %d", restarts)
-	}
-}
-
-func TestLoggerProviderMock(t *testing.T) {
-	mock := &LoggerProviderMock{
-		LoggerMock: func(mod Module) (*zap.Logger, error) {
-			return nil, nil
-		},
-	}
-
-	_, err := mock.Logger(new(ModuleMock))
-	if err != nil {
-		t.Errorf("expected no error from LoggerProviderMock.Logger, but got: %v", err)
-	}
-}
-
-func TestMetricsProviderMock(t *testing.T) {
-	mock := &MetricsProviderMock{
-		MetricsMock: func() ([]Metric, error) {
-			return nil, nil
-		},
-	}
-
-	_, err := mock.Metrics()
-	if err != nil {
-		t.Errorf("expected no error from MetricsProviderMock.Metrics, but got: %v", err)
-	}
-}
-
-func TestPathRenameMock(t *testing.T) {
-	mock := &PathRenameMock{
-		RenameMock: func(oldpath, newpath string) error {
-			return nil
-		},
-	}
-
-	err := mock.Rename("", "")
-	if err != nil {
-		t.Errorf("expected no error from PathRenameMock.Rename, but got: %v", err)
-	}
-}

pkg/gotenberg/modules.go

@@ -75,6 +75,12 @@ type SystemLogger interface {
 	SystemMessages() []string
 }
 
+// Debuggable is a module interface for modules which want to provide
+// additional debug data.
+type Debuggable interface {
+	Debug() map[string]interface{}
+}
+
 // MustRegisterModule registers a module.
 //
 // To register a module, create an init() method in the module main go file:

pkg/gotenberg/pdfengine.go

@@ -12,6 +12,10 @@ var (
 	// PdfEngine interface is not supported by its current implementation.
 	ErrPdfEngineMethodNotSupported = errors.New("method not supported")
 
+	// ErrPdfSplitModeNotSupported is returned when the Split method of the
+	// PdfEngine interface does not sumport a requested PDF split mode.
+	ErrPdfSplitModeNotSupported = errors.New("split mode not supported")
+
 	// ErrPdfFormatNotSupported is returned when the Convert method of the
 	// PdfEngine interface does not support a requested PDF format conversion.
 	ErrPdfFormatNotSupported = errors.New("PDF format not supported")
@@ -21,6 +25,30 @@ var (
 	ErrPdfEngineMetadataValueNotSupported = errors.New("metadata value not supported")
 )
 
+const (
+	// SplitModeIntervals represents a mode where a PDF is split at specific
+	// intervals.
+	SplitModeIntervals string = "intervals"
+
+	// SplitModePages represents a mode where a PDF is split at specific page
+	// ranges.
+	SplitModePages string = "pages"
+)
+
+// SplitMode gathers the data required to split a PDF into multiple parts.
+type SplitMode struct {
+	// Mode is either "intervals" or "pages".
+	Mode string
+
+	// Span is either the intervals or the page ranges to extract, depending on
+	// the selected mode.
+	Span string
+
+	// Unify specifies whether to put extracted pages into a single file or as
+	// many files as there are page ranges. Only works with "pages" mode.
+	Unify bool
+}
+
 const (
 	// PdfA1a represents the PDF/A-1a format.
 	PdfA1a string = "PDF/A-1a"
@@ -60,11 +88,22 @@ type PdfFormats struct {
 // PdfEngine provides an interface for operations on PDFs. Implementations
 // can utilize various tools like PDFtk, or implement functionality directly in
 // Go.
+//
+//nolint:dupl
 type PdfEngine interface {
 	// Merge combines multiple PDFs into a single PDF. The resulting page order
 	// is determined by the order of files provided in inputPaths.
 	Merge(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error
 
+	// Split splits a given PDF file.
+	Split(ctx context.Context, logger *zap.Logger, mode SplitMode, inputPath, outputDirPath string) ([]string, error)
+
+	// Flatten merges existing annotation appearances with page content,
+	// effectively deleting the original annotations. This process can flatten
+	// forms as well, as forms share a relationship with annotations. Note that
+	// this operation is irreversible.
+	Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error
+
 	// Convert transforms a given PDF to the specified formats defined in
 	// PdfFormats. If no format, it does nothing.
 	Convert(ctx context.Context, logger *zap.Logger, formats PdfFormats, inputPath, outputPath string) error

pkg/gotenberg/sort.go

@@ -1,13 +1,15 @@
 package gotenberg
 
 import (
+	"path/filepath"
 	"regexp"
 	"sort"
 	"strconv"
 )
 
 // AlphanumericSort implements sort.Interface and helps to sort strings
-// alphanumerically.
+// alphanumerically by either a numeric prefix or, if missing, a numeric
+// suffix.
 //
 // See: https://github.com/gotenberg/gotenberg/issues/805.
 type AlphanumericSort []string
@@ -21,20 +23,20 @@ func (s AlphanumericSort) Swap(i, j int) {
 }
 
 func (s AlphanumericSort) Less(i, j int) bool {
-	numI, restI := extractPrefix(s[i])
-	numJ, restJ := extractPrefix(s[j])
+	numI, restI := extractNumber(s[i])
+	numJ, restJ := extractNumber(s[j])
 
-	// Compares numerical prefixes if they exist.
+	// If both strings contain a number, compare them numerically.
 	if numI != -1 && numJ != -1 {
 		if numI != numJ {
 			return numI < numJ
 		}
-		// If numbers are equal, falls back to string comparison of the rest.
+		// If the numbers are equal, compare the "rest" strings.
 		return restI < restJ
 	}
 
-	// If one has a numerical prefix and the other doesn't, the one with the
-	// number comes first.
+	// If one contains a number and the other doesn't, the one with the number
+	// comes first.
 	if numI != -1 {
 		return true
 	}
@@ -42,28 +44,55 @@ func (s AlphanumericSort) Less(i, j int) bool {
 		return false
 	}
 
-	// If neither has a numerical prefix, compare as strings
+	// Neither has a number; fall back to lexicographical order.
 	return s[i] < s[j]
 }
 
-// extractPrefix attempts to extract a numerical prefix and the rest of the filename
-func extractPrefix(filename string) (int, string) {
-	matches := numPrefixRegexp.FindStringSubmatch(filename)
-	if len(matches) > 2 {
-		prefix, err := strconv.Atoi(matches[1])
-		if err == nil {
-			return prefix, matches[2]
+// extractNumber attempts to extract a numeric portion from the filename.
+// It first checks for a numeric prefix (digits at the beginning).
+// If none is found, it next attempts to match a number immediately before the
+// extension (for filenames such as "sample1_1.pdf").
+// If that fails, it then attempts a trailing numeric pattern.
+// If no number is found, it returns -1 and the original string.
+func extractNumber(str string) (int, string) {
+	// See https://github.com/gotenberg/gotenberg/issues/1168.
+	str = filepath.Base(str)
+
+	// Check for a numeric prefix.
+	if matches := prefixRegexp.FindStringSubmatch(str); len(matches) > 2 {
+		if num, err := strconv.Atoi(matches[1]); err == nil {
+			return num, matches[2]
 		}
 	}
 
-	// Returns -1 if no numerical prefix is found, indicating to just compare
-	// as strings.
-	return -1, filename
+	// Check for a number immediately before an extension.
+	if matches := extensionSuffixRegexp.FindStringSubmatch(str); len(matches) > 3 {
+		if num, err := strconv.Atoi(matches[2]); err == nil {
+			// Remove the numeric block but keep the extension.
+			return num, matches[1] + matches[3]
+		}
+	}
+
+	// Check for a trailing number (with no extension following).
+	if matches := suffixRegexp.FindStringSubmatch(str); len(matches) > 2 {
+		if num, err := strconv.Atoi(matches[2]); err == nil {
+			return num, matches[1]
+		}
+	}
+
+	// No numeric portion found.
+	return -1, str
 }
 
-var numPrefixRegexp = regexp.MustCompile(`^(\d+)(.*)$`)
+// Regular expressions used by extractNumber.
+var (
+	// Matches a numeric prefix: one or more digits at the start.
+	prefixRegexp = regexp.MustCompile(`^(\d+)(.*)$`)
+	// Matches a numeric block immediately before a file extension.
+	extensionSuffixRegexp = regexp.MustCompile(`^(.*?)(\d+)(\.[^.]+)$`)
+	// Matches a trailing numeric sequence when there is no extension.
+	suffixRegexp = regexp.MustCompile(`^(.*?)(\d+)$`)
+)
 
 // Interface guard.
-var (
-	_ sort.Interface = (*AlphanumericSort)(nil)
-)
+var _ sort.Interface = (*AlphanumericSort)(nil)

pkg/gotenberg/sort_test.go

@@ -17,6 +17,16 @@ func TestAlphanumericSort(t *testing.T) {
 			values:       []string{"10qux.pdf", "2_baz.txt", "2_aza.txt", "1bar.pdf", "Afoo.txt", "Bbar.docx", "25zeta.txt", "3.pdf", "4_foo.pdf"},
 			expectedSort: []string{"1bar.pdf", "2_aza.txt", "2_baz.txt", "3.pdf", "4_foo.pdf", "10qux.pdf", "25zeta.txt", "Afoo.txt", "Bbar.docx"},
 		},
+		{
+			scenario:     "numeric suffixes with extensions",
+			values:       []string{"sample1_10.pdf", "sample1_11.pdf", "sample1_4.pdf", "sample1_3.pdf", "sample1_1.pdf", "sample1_2.pdf"},
+			expectedSort: []string{"sample1_1.pdf", "sample1_2.pdf", "sample1_3.pdf", "sample1_4.pdf", "sample1_10.pdf", "sample1_11.pdf"},
+		},
+		{
+			scenario:     "numeric suffixes",
+			values:       []string{"sample1_10", "sample1_11", "sample1_4", "sample1_3", "sample1_1", "sample1_2"},
+			expectedSort: []string{"sample1_1", "sample1_2", "sample1_3", "sample1_4", "sample1_10", "sample1_11"},
+		},
 		{
 			scenario:     "hrtime (PHP library)",
 			values:       []string{"245654773395259", "245654773395039", "245654773395149", "245654773394919", "245654773394369"},

pkg/gotenberg/supervisor.go

@@ -173,6 +173,20 @@ func (s *processSupervisor) Healthy() bool {
 }
 
 func (s *processSupervisor) Run(ctx context.Context, logger *zap.Logger, task func() error) error {
+	// A user reported a potential issue:
+	//
+	// "Although the counting operation is atomic, nothing prevent 2 concurrent
+	// goroutines to retrieve the same 'currentQueueSize' and to compare its
+	// value against the max limit. Then, resulting queue size would be 1 above
+	// the allowed limit."
+	//
+	// However, he was unable to actually trigger this issue, even when sending
+	// a lot of requests.
+	//
+	// For now, the best option is to consider this issue to be unlikely to
+	// happen, and keep the code as it is because it is more readable this way.
+	//
+	// See https://github.com/gotenberg/gotenberg/issues/951.
 	currentQueueSize := s.reqQueueSize.Load()
 	if s.maxQueueSize > 0 && currentQueueSize >= s.maxQueueSize {
 		return ErrMaximumQueueSizeExceeded
@@ -187,10 +201,13 @@ func (s *processSupervisor) Run(ctx context.Context, logger *zap.Logger, task fu
 				logger.Debug("process lock acquired")
 				s.reqQueueSize.Add(-1)
 				s.reqCounter.Add(1)
+				releaseMutexChan := true
 
 				defer func() {
-					logger.Debug("process lock released")
-					<-s.mutexChan
+					if releaseMutexChan {
+						logger.Debug("process lock released")
+						<-s.mutexChan
+					}
 				}()
 
 				if !s.firstStart.Load() {
@@ -212,18 +229,26 @@ func (s *processSupervisor) Run(ctx context.Context, logger *zap.Logger, task fu
 					}
 				}
 
+				err := s.runWithDeadline(ctx, task)
+
 				if s.maxReqLimit > 0 && s.reqCounter.Load() >= s.maxReqLimit {
-					s.logger.Debug("max request limit reached, restarting...")
-					err := s.runWithDeadline(ctx, func() error {
-						return s.restart()
-					})
-					if err != nil {
-						return fmt.Errorf("process restart before task: %w", err)
-					}
+					s.logger.Debug("max request limit reached, restarting eagerly...")
+					releaseMutexChan = false
+
+					go func() {
+						err := s.runWithDeadline(context.Background(), func() error {
+							return s.restart()
+						})
+						if err != nil {
+							s.logger.Error(fmt.Sprintf("process restart after task: %v", err))
+						}
+						logger.Debug("process lock released")
+						<-s.mutexChan
+					}()
 				}
 
 				// Note: no error wrapping because it leaks on Chromium console exceptions output.
-				return s.runWithDeadline(ctx, task)
+				return err
 			case <-ctx.Done():
 				logger.Debug("failed to acquire process lock before deadline")
 				s.reqQueueSize.Add(-1)

pkg/gotenberg/supervisor_test.go

@@ -325,7 +325,7 @@ func TestProcessSupervisor_Run(t *testing.T) {
 			expectedStopCalls:    1,
 		},
 		{
-			scenario:             "cannot restart after reaching max request limit",
+			scenario:             "auto-restart after reaching max request limit",
 			startError:           errors.New("start error"),
 			initiallyStarted:     true,
 			isRestarting:         false,
@@ -451,6 +451,10 @@ func TestProcessSupervisor_Run(t *testing.T) {
 				return
 			}
 
+			// Making sure restarts are finished.
+			ps.mutexChan <- struct{}{}
+			<-ps.mutexChan
+
 			if startCalls.Load() != tc.expectedStartCalls {
 				t.Errorf("expected %d process.Start calls, got %d", tc.expectedStartCalls, startCalls.Load())
 			}

pkg/gotenberg/version.go

@@ -0,0 +1,4 @@
+package gotenberg
+
+// Version is the... version of the Gotenberg application.
+var Version = "snapshot"

pkg/modules/api/api.go

@@ -4,14 +4,14 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"net"
 	"net/http"
-	"os"
 	"sort"
-	"strconv"
 	"strings"
 	"time"
 
 	"github.com/alexliesenfeld/health"
+	"github.com/dlclark/regexp2"
 	"github.com/labstack/echo/v4"
 	flag "github.com/spf13/pflag"
 	"go.uber.org/multierr"
@@ -30,11 +30,19 @@ func init() {
 // middlewares or health checks.
 type Api struct {
 	port                      int
+	bindIp                    string
+	tlsCertFile               string
+	tlsKeyFile                string
 	startTimeout              time.Duration
+	bodyLimit                 int64
 	timeout                   time.Duration
 	rootPath                  string
 	traceHeader               string
+	basicAuthUsername         string
+	basicAuthPassword         string
+	downloadFromCfg           downloadFromConfig
 	disableHealthCheckLogging bool
+	enableDebugRoute          bool
 
 	routes              []Route
 	externalMiddlewares []Middleware
@@ -45,6 +53,13 @@ type Api struct {
 	srv                 *echo.Echo
 }
 
+type downloadFromConfig struct {
+	allowList *regexp2.Regexp
+	denyList  *regexp2.Regexp
+	maxRetry  int
+	disable   bool
+}
+
 // Router is a module interface which adds routes to the [Api].
 type Router interface {
 	Routes() ([]Route, error)
@@ -159,12 +174,21 @@ func (a *Api) Descriptor() gotenberg.ModuleDescriptor {
 			fs := flag.NewFlagSet("api", flag.ExitOnError)
 			fs.Int("api-port", 3000, "Set the port on which the API should listen")
 			fs.String("api-port-from-env", "", "Set the environment variable with the port on which the API should listen - override the default port")
+			fs.String("api-bind-ip", "", "Set the IP address the API should bind to for incoming connections")
+			fs.String("api-tls-cert-file", "", "Path to the TLS/SSL certificate file - for HTTPS support")
+			fs.String("api-tls-key-file", "", "Path to the TLS/SSL key file - for HTTPS support")
 			fs.Duration("api-start-timeout", time.Duration(30)*time.Second, "Set the time limit for the API to start")
 			fs.Duration("api-timeout", time.Duration(30)*time.Second, "Set the time limit for requests")
+			fs.String("api-body-limit", "", "Set the body limit for multipart/form-data requests - it accepts values like 5MB, 1GB, etc")
 			fs.String("api-root-path", "/", "Set the root path of the API - for service discovery via URL paths")
 			fs.String("api-trace-header", "Gotenberg-Trace", "Set the header name to use for identifying requests")
+			fs.Bool("api-enable-basic-auth", false, "Enable basic authentication - will look for the GOTENBERG_API_BASIC_AUTH_USERNAME and GOTENBERG_API_BASIC_AUTH_PASSWORD environment variables")
+			fs.String("api-download-from-allow-list", "", "Set the allowed URLs for the download from feature using a regular expression")
+			fs.String("api-download-from-deny-list", "", "Set the denied URLs for the download from feature using a regular expression")
+			fs.Int("api-download-from-max-retry", 4, "Set the maximum number of retries for the download from feature")
+			fs.Bool("api-disable-download-from", false, "Disable the download from feature")
 			fs.Bool("api-disable-health-check-logging", false, "Disable health check logging")
-
+			fs.Bool("api-enable-debug-route", false, "Enable the debug route")
 			return fs
 		}(),
 		New: func() gotenberg.Module { return new(Api) },
@@ -175,33 +199,48 @@ func (a *Api) Descriptor() gotenberg.ModuleDescriptor {
 func (a *Api) Provision(ctx *gotenberg.Context) error {
 	flags := ctx.ParsedFlags()
 	a.port = flags.MustInt("api-port")
+	a.bindIp = flags.MustString("api-bind-ip")
+	a.tlsCertFile = flags.MustString("api-tls-cert-file")
+	a.tlsKeyFile = flags.MustString("api-tls-key-file")
 	a.startTimeout = flags.MustDuration("api-start-timeout")
 	a.timeout = flags.MustDuration("api-timeout")
+	a.bodyLimit = flags.MustHumanReadableBytes("api-body-limit")
 	a.rootPath = flags.MustString("api-root-path")
 	a.traceHeader = flags.MustString("api-trace-header")
+	a.downloadFromCfg = downloadFromConfig{
+		allowList: flags.MustRegexp("api-download-from-allow-list"),
+		denyList:  flags.MustRegexp("api-download-from-deny-list"),
+		maxRetry:  flags.MustInt("api-download-from-max-retry"),
+		disable:   flags.MustBool("api-disable-download-from"),
+	}
 	a.disableHealthCheckLogging = flags.MustBool("api-disable-health-check-logging")
+	a.enableDebugRoute = flags.MustBool("api-enable-debug-route")
 
 	// Port from env?
 	portEnvVar := flags.MustString("api-port-from-env")
 	if portEnvVar != "" {
-		val, ok := os.LookupEnv(portEnvVar)
-
-		if !ok {
-			return fmt.Errorf("environment variable '%s' does not exist", portEnvVar)
-		}
-
-		if val == "" {
-			return fmt.Errorf("environment variable '%s' is empty", portEnvVar)
-		}
-
-		port, err := strconv.Atoi(val)
+		port, err := gotenberg.IntEnv(portEnvVar)
 		if err != nil {
-			return fmt.Errorf("get int value of environment variable '%s': %w", portEnvVar, err)
+			return fmt.Errorf("get API port from env: %w", err)
 		}
-
 		a.port = port
 	}
 
+	// Enable basic auth?
+	enableBasicAuth := flags.MustBool("api-enable-basic-auth")
+	if enableBasicAuth {
+		basicAuthUsername, err := gotenberg.StringEnv("GOTENBERG_API_BASIC_AUTH_USERNAME")
+		if err != nil {
+			return fmt.Errorf("get basic auth username from env: %w", err)
+		}
+		basicAuthPassword, err := gotenberg.StringEnv("GOTENBERG_API_BASIC_AUTH_PASSWORD")
+		if err != nil {
+			return fmt.Errorf("get basic auth password from env: %w", err)
+		}
+		a.basicAuthUsername = basicAuthUsername
+		a.basicAuthPassword = basicAuthPassword
+	}
+
 	// Get routes from modules.
 	mods, err := ctx.Modules(new(Router))
 	if err != nil {
@@ -282,7 +321,7 @@ func (a *Api) Provision(ctx *gotenberg.Context) error {
 	a.logger = logger
 
 	// File system.
-	a.fs = gotenberg.NewFileSystem()
+	a.fs = gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll))
 
 	return nil
 }
@@ -297,6 +336,16 @@ func (a *Api) Validate() error {
 		)
 	}
 
+	if a.bindIp != "" && net.ParseIP(a.bindIp) == nil {
+		err = multierr.Append(err, errors.New("IP must be a valid IP address"))
+	}
+
+	if (a.tlsCertFile != "" && a.tlsKeyFile == "") || (a.tlsCertFile == "" && a.tlsKeyFile != "") {
+		err = multierr.Append(err,
+			errors.New("both TLS certificate and key files must be set"),
+		)
+	}
+
 	if !strings.HasPrefix(a.rootPath, "/") {
 		err = multierr.Append(err,
 			errors.New("root path must start with /"),
@@ -319,8 +368,10 @@ func (a *Api) Validate() error {
 		return err
 	}
 
-	routesMap := make(map[string]string, len(a.routes)+1)
+	routesMap := make(map[string]string, len(a.routes)+3)
 	routesMap["/health"] = "/health"
+	routesMap["/version"] = "/version"
+	routesMap["/debug"] = "/debug"
 
 	for _, route := range a.routes {
 		if route.Path == "" {
@@ -409,12 +460,25 @@ func (a *Api) Start() error {
 
 	hardTimeout := a.timeout + (time.Duration(5) * time.Second)
 
+	// Basic auth?
+	var securityMiddleware echo.MiddlewareFunc
+	if a.basicAuthUsername != "" {
+		securityMiddleware = basicAuthMiddleware(a.basicAuthUsername, a.basicAuthPassword)
+	} else {
+		securityMiddleware = func(next echo.HandlerFunc) echo.HandlerFunc {
+			return func(c echo.Context) error {
+				return next(c)
+			}
+		}
+	}
+
 	// Add the modules' routes and their specific middlewares.
 	for _, route := range a.routes {
 		var middlewares []echo.MiddlewareFunc
+		middlewares = append(middlewares, securityMiddleware)
 
 		if route.IsMultipart {
-			middlewares = append(middlewares, contextMiddleware(a.fs, a.timeout))
+			middlewares = append(middlewares, contextMiddleware(a.fs, a.timeout, a.bodyLimit, a.downloadFromCfg))
 
 			for _, externalMultipartMiddleware := range externalMultipartMiddlewares {
 				middlewares = append(middlewares, externalMultipartMiddleware.Handler)
@@ -431,16 +495,63 @@ func (a *Api) Start() error {
 		)
 	}
 
-	// Let's not forget the health check route.
+	// Root route.
+	a.srv.GET(
+		a.rootPath,
+		func(c echo.Context) error {
+			return c.HTML(http.StatusOK, `Hey, Gotenberg has no UI, it's an API. Head to the <a href="https://gotenberg.dev">documentation</a> to learn how to interact with it 🚀`)
+		},
+		securityMiddleware,
+	)
+
+	// Favicon route.
+	a.srv.GET(
+		fmt.Sprintf("%s%s", a.rootPath, "favicon.ico"),
+		func(c echo.Context) error {
+			return c.NoContent(http.StatusNoContent)
+		},
+		securityMiddleware,
+	)
+
+	// Let's not forget the health check routes...
+	checks := append(a.healthChecks, health.WithTimeout(a.timeout))
+	checker := health.NewChecker(checks...)
+	healthCheckHandler := health.NewHandler(checker)
+
 	a.srv.GET(
 		fmt.Sprintf("%s%s", a.rootPath, "health"),
 		func() echo.HandlerFunc {
-			checks := append(a.healthChecks, health.WithTimeout(a.timeout))
-			checker := health.NewChecker(checks...)
-			return echo.WrapHandler(health.NewHandler(checker))
+			return echo.WrapHandler(healthCheckHandler)
 		}(),
 		hardTimeoutMiddleware(hardTimeout),
 	)
+	a.srv.HEAD(
+		fmt.Sprintf("%s%s", a.rootPath, "health"),
+		func() echo.HandlerFunc {
+			return echo.WrapHandler(healthCheckHandler)
+		}(),
+		hardTimeoutMiddleware(hardTimeout),
+	)
+
+	// ...the version route.
+	a.srv.GET(
+		fmt.Sprintf("%s%s", a.rootPath, "version"),
+		func(c echo.Context) error {
+			return c.String(http.StatusOK, gotenberg.Version)
+		},
+		securityMiddleware,
+	)
+
+	// ...and the debug route.
+	if a.enableDebugRoute {
+		a.srv.GET(
+			fmt.Sprintf("%s%s", a.rootPath, "debug"),
+			func(c echo.Context) error {
+				return c.JSONPretty(http.StatusOK, gotenberg.Debug(), "  ")
+			},
+			securityMiddleware,
+		)
+	}
 
 	// Wait for all modules to be ready.
 	ctx, cancel := context.WithTimeout(context.Background(), a.startTimeout)
@@ -458,8 +569,15 @@ func (a *Api) Start() error {
 
 	// As the following code is blocking, run it in a goroutine.
 	go func() {
-		server := &http2.Server{}
-		err := a.srv.StartH2CServer(fmt.Sprintf(":%d", a.port), server)
+		var err error
+		if a.tlsCertFile != "" && a.tlsKeyFile != "" {
+			// Start an HTTPS server (supports HTTP/2).
+			err = a.srv.StartTLS(fmt.Sprintf("%s:%d", a.bindIp, a.port), a.tlsCertFile, a.tlsKeyFile)
+		} else {
+			// Start an HTTP/2 Cleartext (non-HTTPS) server.
+			server := &http2.Server{}
+			err = a.srv.StartH2CServer(fmt.Sprintf("%s:%d", a.bindIp, a.port), server)
+		}
 		if !errors.Is(err, http.ErrServerClosed) {
 			a.logger.Fatal(err.Error())
 		}
@@ -470,7 +588,11 @@ func (a *Api) Start() error {
 
 // StartupMessage returns a custom startup message.
 func (a *Api) StartupMessage() string {
-	return fmt.Sprintf("server listening on port %d", a.port)
+	ip := a.bindIp
+	if a.bindIp == "" {
+		ip = "[::]"
+	}
+	return fmt.Sprintf("server started on %s:%d", ip, a.port)
 }
 
 // Stop stops the HTTP server.

pkg/modules/api/api_test.go

@@ -1,855 +0,0 @@
-package api
-
-import (
-	"bytes"
-	"context"
-	"errors"
-	"mime/multipart"
-	"net/http"
-	"net/http/httptest"
-	"os"
-	"reflect"
-	"testing"
-	"time"
-
-	"github.com/alexliesenfeld/health"
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestApi_Descriptor(t *testing.T) {
-	descriptor := new(Api).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(Api))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestApi_Provision(t *testing.T) {
-	for _, tc := range []struct {
-		scenario          string
-		ctx               *gotenberg.Context
-		setEnv            func()
-		expectPort        int
-		expectMiddlewares []Middleware
-		expectError       bool
-	}{
-		{
-			scenario: "port from env: non-existing environment variable",
-			ctx: func() *gotenberg.Context {
-				fs := new(Api).Descriptor().FlagSet
-				err := fs.Parse([]string{"--api-port-from-env=FOO"})
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: fs,
-					},
-					nil,
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "port from env: empty environment variable",
-			ctx: func() *gotenberg.Context {
-				fs := new(Api).Descriptor().FlagSet
-				err := fs.Parse([]string{"--api-port-from-env=PORT"})
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: fs,
-					},
-					nil,
-				)
-			}(),
-			setEnv: func() {
-				err := os.Setenv("PORT", "")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-			},
-			expectError: true,
-		},
-		{
-			scenario: "port from env: invalid environment variable value",
-			ctx: func() *gotenberg.Context {
-				fs := new(Api).Descriptor().FlagSet
-				err := fs.Parse([]string{"--api-port-from-env=PORT"})
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: fs,
-					},
-					nil,
-				)
-			}(),
-			setEnv: func() {
-				err := os.Setenv("PORT", "foo")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-			},
-			expectError: true,
-		},
-		{
-			scenario: "no valid routers",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					RouterMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.ValidateMock = func() error {
-					return errors.New("foo")
-				}
-				mod.RoutesMock = func() ([]Route, error) {
-					return nil, nil
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "cannot retrieve routes from router",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					RouterMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.RoutesMock = func() ([]Route, error) {
-					return nil, errors.New("foo")
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no valid middleware providers",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					MiddlewareProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.ValidateMock = func() error {
-					return errors.New("foo")
-				}
-				mod.MiddlewaresMock = func() ([]Middleware, error) {
-					return nil, nil
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "cannot retrieve middlewares from middleware provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					MiddlewareProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.MiddlewaresMock = func() ([]Middleware, error) {
-					return nil, errors.New("foo")
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no valid health checkers",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					HealthCheckerMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.ValidateMock = func() error {
-					return errors.New("foo")
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "cannot retrieve health checks from health checker",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					HealthCheckerMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.ChecksMock = func() ([]health.CheckerOption, error) {
-					return nil, errors.New("foo")
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no logger provider",
-			ctx: func() *gotenberg.Context {
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no logger from logger provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LoggerMock = func(mod gotenberg.Module) (*zap.Logger, error) {
-					return nil, errors.New("foo")
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "success",
-			ctx: func() *gotenberg.Context {
-				mod1 := &struct {
-					gotenberg.ModuleMock
-					RouterMock
-				}{}
-				mod1.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod1 }}
-				}
-				mod1.RoutesMock = func() ([]Route, error) {
-					return []Route{{}}, nil
-				}
-
-				mod2 := &struct {
-					gotenberg.ModuleMock
-					MiddlewareProviderMock
-				}{}
-				mod2.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod2 }}
-				}
-				mod2.MiddlewaresMock = func() ([]Middleware, error) {
-					return []Middleware{
-						{
-							Priority: VeryLowPriority,
-						},
-						{
-							Priority: LowPriority,
-						},
-						{
-							Priority: MediumPriority,
-						},
-						{
-							Priority: HighPriority,
-						},
-						{
-							Priority: VeryHighPriority,
-						},
-					}, nil
-				}
-
-				mod3 := &struct {
-					gotenberg.ModuleMock
-					HealthCheckerMock
-				}{}
-				mod3.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "baz", New: func() gotenberg.Module { return mod3 }}
-				}
-				mod3.ChecksMock = func() ([]health.CheckerOption, error) {
-					return []health.CheckerOption{health.WithDisabledAutostart()}, nil
-				}
-				mod3.ReadyMock = func() error {
-					return nil
-				}
-
-				mod4 := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-				}{}
-				mod4.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "qux", New: func() gotenberg.Module { return mod4 }}
-				}
-				mod4.LoggerMock = func(_ gotenberg.Module) (*zap.Logger, error) {
-					return zap.NewNop(), nil
-				}
-
-				fs := new(Api).Descriptor().FlagSet
-				err := fs.Parse([]string{"--api-port-from-env=PORT"})
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: fs,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod1.Descriptor(),
-						mod2.Descriptor(),
-						mod3.Descriptor(),
-						mod4.Descriptor(),
-					},
-				)
-			}(),
-			setEnv: func() {
-				err := os.Setenv("PORT", "1337")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-			},
-			expectPort: 1337,
-			expectMiddlewares: []Middleware{
-				{
-					Priority: VeryHighPriority,
-				},
-				{
-					Priority: HighPriority,
-				},
-				{
-					Priority: MediumPriority,
-				},
-				{
-					Priority: LowPriority,
-				},
-				{
-					Priority: VeryLowPriority,
-				},
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			if tc.setEnv != nil {
-				tc.setEnv()
-			}
-
-			mod := new(Api)
-			err := mod.Provision(tc.ctx)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if tc.expectPort != 0 && mod.port != tc.expectPort {
-				t.Errorf("expected port %d but got %d", tc.expectPort, mod.port)
-			}
-
-			if !reflect.DeepEqual(mod.externalMiddlewares, tc.expectMiddlewares) {
-				t.Errorf("expected %+v, but got: %+v", tc.expectMiddlewares, mod.externalMiddlewares)
-			}
-		})
-	}
-}
-
-func TestApi_Validate(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		port        int
-		rootPath    string
-		traceHeader string
-		routes      []Route
-		middlewares []Middleware
-		expectError bool
-	}{
-		{
-			scenario:    "invalid port (< 1)",
-			port:        0,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes:      nil,
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid port (> 65535)",
-			port:        65536,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes:      nil,
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid root path: missing / prefix",
-			port:        10,
-			rootPath:    "foo/",
-			traceHeader: "foo",
-			routes:      nil,
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid root path: missing / suffix",
-			port:        10,
-			rootPath:    "/foo",
-			traceHeader: "foo",
-			routes:      nil,
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid trace header",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "",
-			routes:      nil,
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid route: empty path",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes: []Route{
-				{
-					Path: "",
-				},
-			},
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid route: missing / prefix in path",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes: []Route{
-				{
-					Path: "foo",
-				},
-			},
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid multipart route: no /forms prefix in path",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes: []Route{
-				{
-					Path:        "/foo",
-					IsMultipart: true,
-				},
-			},
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid route: no method",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes: []Route{
-				{
-					Path:   "/foo",
-					Method: "",
-				},
-			},
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid route: nil handler",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes: []Route{
-				{
-					Method:  http.MethodPost,
-					Path:    "/foo",
-					Handler: nil,
-				},
-			},
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid route: path already existing",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes: []Route{
-				{
-					Method:  http.MethodPost,
-					Path:    "/foo",
-					Handler: func(_ echo.Context) error { return nil },
-				},
-				{
-					Method:  http.MethodPost,
-					Path:    "/foo",
-					Handler: func(_ echo.Context) error { return nil },
-				},
-			},
-			middlewares: nil,
-			expectError: true,
-		},
-		{
-			scenario:    "invalid middleware: nil handler",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes:      nil,
-			middlewares: []Middleware{
-				{
-					Priority: HighPriority,
-					Handler:  nil,
-				},
-			},
-			expectError: true,
-		},
-		{
-			scenario:    "success",
-			port:        10,
-			rootPath:    "/foo/",
-			traceHeader: "foo",
-			routes: []Route{
-				{
-					Method:  http.MethodGet,
-					Path:    "/foo",
-					Handler: func(_ echo.Context) error { return nil },
-				},
-				{
-					Method:      http.MethodGet,
-					Path:        "/forms/foo",
-					Handler:     func(_ echo.Context) error { return nil },
-					IsMultipart: true,
-				},
-			},
-			middlewares: []Middleware{
-				{
-					Priority: HighPriority,
-					Handler: func() echo.MiddlewareFunc {
-						return func(next echo.HandlerFunc) echo.HandlerFunc {
-							return func(c echo.Context) error {
-								return next(c)
-							}
-						}
-					}(),
-				},
-			},
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := Api{
-				port:                tc.port,
-				rootPath:            tc.rootPath,
-				traceHeader:         tc.traceHeader,
-				routes:              tc.routes,
-				externalMiddlewares: tc.middlewares,
-			}
-
-			err := mod.Validate()
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestApi_Start(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		readyFn     []func() error
-		expectError bool
-	}{
-		{
-			scenario: "at least one module not ready",
-			readyFn: []func() error{
-				func() error { return nil },
-				func() error { return errors.New("not ready") },
-			},
-			expectError: true,
-		},
-		{
-			scenario: "success",
-			readyFn: []func() error{
-				func() error { return nil },
-				func() error { return nil },
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Api)
-			mod.port = 3000
-			mod.startTimeout = time.Duration(30) * time.Second
-			mod.rootPath = "/"
-			mod.disableHealthCheckLogging = true
-			mod.routes = []Route{
-				{
-					Method:         http.MethodPost,
-					Path:           "/forms/foo",
-					IsMultipart:    true,
-					DisableLogging: true,
-					Handler: func(c echo.Context) error {
-						ctx := c.Get("context").(*Context)
-						ctx.outputPaths = []string{
-							"/tests/test/testdata/api/sample1.txt",
-						}
-
-						return nil
-					},
-				},
-				{
-					Method:      http.MethodPost,
-					Path:        "/forms/bar",
-					IsMultipart: true,
-					Handler:     func(_ echo.Context) error { return errors.New("foo") },
-				},
-			}
-			mod.externalMiddlewares = []Middleware{
-				{
-					Stack: PreRouterStack,
-					Handler: func() echo.MiddlewareFunc {
-						return func(next echo.HandlerFunc) echo.HandlerFunc {
-							return func(c echo.Context) error {
-								return next(c)
-							}
-						}
-					}(),
-				},
-				{
-					Stack: MultipartStack,
-					Handler: func() echo.MiddlewareFunc {
-						return func(next echo.HandlerFunc) echo.HandlerFunc {
-							return func(c echo.Context) error {
-								return next(c)
-							}
-						}
-					}(),
-				},
-				{
-					Stack: DefaultStack,
-					Handler: func() echo.MiddlewareFunc {
-						return func(next echo.HandlerFunc) echo.HandlerFunc {
-							return func(c echo.Context) error {
-								return next(c)
-							}
-						}
-					}(),
-				},
-				{
-					Handler: func() echo.MiddlewareFunc {
-						return func(next echo.HandlerFunc) echo.HandlerFunc {
-							return func(c echo.Context) error {
-								return next(c)
-							}
-						}
-					}(),
-				},
-			}
-			mod.readyFn = tc.readyFn
-			mod.fs = gotenberg.NewFileSystem()
-			mod.logger = zap.NewNop()
-
-			err := mod.Start()
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if tc.expectError {
-				return
-			}
-
-			// health request.
-			recorder := httptest.NewRecorder()
-			healthRequest := httptest.NewRequest(http.MethodGet, "/health", nil)
-
-			mod.srv.ServeHTTP(recorder, healthRequest)
-			if recorder.Code != http.StatusOK {
-				t.Errorf("expected %d status code but got %d", http.StatusOK, recorder.Code)
-			}
-
-			// "multipart/form-data" request.
-			multipartRequest := func(url string) *http.Request {
-				body := &bytes.Buffer{}
-
-				writer := multipart.NewWriter(body)
-
-				defer func() {
-					err := writer.Close()
-					if err != nil {
-						t.Fatalf("expected no error but got: %v", err)
-					}
-				}()
-
-				err := writer.WriteField("foo", "foo")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				part, err := writer.CreateFormFile("foo.txt", "foo.txt")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				_, err = part.Write([]byte("foo"))
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				req := httptest.NewRequest(http.MethodPost, url, body)
-				req.Header.Set(echo.HeaderContentType, writer.FormDataContentType())
-
-				return req
-			}
-
-			recorder = httptest.NewRecorder()
-			mod.srv.ServeHTTP(recorder, multipartRequest("/forms/foo"))
-
-			if recorder.Code != http.StatusOK {
-				t.Errorf("expected %d status code but got %d", http.StatusOK, recorder.Code)
-			}
-
-			recorder = httptest.NewRecorder()
-			mod.srv.ServeHTTP(recorder, multipartRequest("/forms/bar"))
-
-			if recorder.Code != http.StatusInternalServerError {
-				t.Errorf("expected %d status code but got %d", http.StatusInternalServerError, recorder.Code)
-			}
-
-			err = mod.srv.Shutdown(context.TODO())
-			if err != nil {
-				t.Errorf("expected no error but got: %v", err)
-			}
-		})
-	}
-}
-
-func TestApi_StartupMessage(t *testing.T) {
-	mod := Api{
-		port: 3000,
-	}
-
-	actual := mod.StartupMessage()
-	expect := "server listening on port 3000"
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestApi_Stop(t *testing.T) {
-	mod := &Api{
-		port: 3000,
-		routes: []Route{
-			{
-				Method:  http.MethodGet,
-				Path:    "/foo",
-				Handler: func(_ echo.Context) error { return nil },
-			},
-		},
-		logger: zap.NewNop(),
-	}
-
-	err := mod.Start()
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-
-	err = mod.Stop(context.TODO())
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}

pkg/modules/api/context.go

@@ -1,22 +1,26 @@
 package api
 
 import (
-	"compress/flate"
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
+	"mime"
 	"mime/multipart"
 	"net/http"
 	"os"
 	"path/filepath"
 	"strings"
+	"sync/atomic"
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/hashicorp/go-retryablehttp"
 	"github.com/labstack/echo/v4"
-	"github.com/mholt/archiver/v3"
+	"github.com/mholt/archives"
 	"go.uber.org/zap"
+	"golang.org/x/sync/errgroup"
 	"golang.org/x/text/unicode/norm"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
@@ -42,26 +46,68 @@ type Context struct {
 
 	logger     *zap.Logger
 	echoCtx    echo.Context
+	mkdirAll   gotenberg.MkdirAll
 	pathRename gotenberg.PathRename
 	context.Context
 }
 
-type osPathRename struct{}
+type trackingReader struct {
+	R            io.Reader
+	AddReadBytes func(n int64) error
+}
 
-func (o *osPathRename) Rename(oldpath, newpath string) error {
-	return os.Rename(oldpath, newpath)
+func (t *trackingReader) Read(p []byte) (int, error) {
+	n, err := t.R.Read(p)
+	if n > 0 {
+		errAddRead := t.AddReadBytes(int64(n))
+		if errAddRead != nil {
+			return n, fmt.Errorf("add read bytes: %w", errAddRead)
+		}
+	}
+	if err != nil {
+		// It's a common practice in Go to return io.EOF unwrapped to signal
+		// the end of a data stream. Wrapping it can lead to unexpected
+		// behavior in standard library functions.
+		return n, err
+	}
+	return n, nil
+}
+
+type downloadFrom struct {
+	// Url is the URL to download a file from.
+	Url string `json:"url"`
+
+	// ExtraHttpHeaders are the HTTP headers to send alongside.
+	ExtraHttpHeaders map[string]string `json:"extraHttpHeaders"`
 }
 
 // newContext returns a [Context] by parsing a "multipart/form-data" request.
-func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSystem, timeout time.Duration) (*Context, context.CancelFunc, error) {
+func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSystem, timeout time.Duration, bodyLimit int64, downloadFromCfg downloadFromConfig, traceHeader, trace string) (*Context, context.CancelFunc, error) {
 	processCtx, processCancel := context.WithTimeout(context.Background(), timeout)
 
+	// We want to make sure the multipart/form-data does not exceed a given
+	// limit. We consider: form fields (keys, values, files) and files
+	// downloaded remotely ("download from" feature).
+	var totalBytesRead atomic.Int64
+
+	addReadBytes := func(n int64) error {
+		newTotal := totalBytesRead.Add(n)
+		if bodyLimit != 0 && newTotal > bodyLimit {
+			return WrapError(
+				fmt.Errorf("body limit reached (> %d)", bodyLimit),
+				NewSentinelHttpError(http.StatusRequestEntityTooLarge, http.StatusText(http.StatusRequestEntityTooLarge)),
+			)
+		}
+		return nil
+	}
+
 	ctx := &Context{
 		outputPaths: make([]string, 0),
 		cancelled:   false,
 		logger:      logger,
 		echoCtx:     echoCtx,
-		pathRename:  new(osPathRename),
+		mkdirAll:    new(gotenberg.OsMkdirAll),
+		pathRename:  new(gotenberg.OsPathRename),
 		Context:     processCtx,
 	}
 
@@ -117,6 +163,19 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSyst
 		return nil, cancel, fmt.Errorf("get multipart form: %w", err)
 	}
 
+	// This will ensure we do not exceed the body limit.
+	var formValuesSize int64
+	for key, valArray := range form.Value {
+		formValuesSize += int64(len(key))
+		for _, val := range valArray {
+			formValuesSize += int64(len(val))
+		}
+	}
+	err = addReadBytes(formValuesSize)
+	if err != nil {
+		return nil, cancel, fmt.Errorf("add read bytes: %w", err)
+	}
+
 	dirPath, err := fs.MkdirAll()
 	if err != nil {
 		return nil, cancel, fmt.Errorf("create working directory: %w", err)
@@ -126,6 +185,150 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSyst
 	ctx.values = form.Value
 	ctx.files = make(map[string]string)
 
+	// First, try to download files listed in the "downloadFrom" form field, if
+	// any.
+	raw, ok := ctx.values["downloadFrom"]
+	if !downloadFromCfg.disable && ok {
+		var dls []downloadFrom
+		err = json.Unmarshal([]byte(raw[0]), &dls)
+		if err != nil {
+			return nil, cancel, WrapError(
+				fmt.Errorf("unmarshal json: %w", err),
+				NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Invalid 'downloadFrom' form field value: %s", err)),
+			)
+		}
+
+		eg, _ := errgroup.WithContext(ctx)
+		for i, dl := range dls {
+			eg.Go(func() error {
+				deadline, ok := ctx.Deadline()
+				if !ok {
+					// Should not happen, as context is created with a timeout.
+					return errors.New("context has no deadline")
+				}
+
+				if strings.TrimSpace(dl.Url) == "" {
+					return WrapError(
+						errors.New("empty download from URL"),
+						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Invalid 'downloadFrom' form field entry %d: URL must be set", i)),
+					)
+				}
+
+				err := gotenberg.FilterDeadline(downloadFromCfg.allowList, downloadFromCfg.denyList, dl.Url, deadline)
+				if err != nil {
+					return fmt.Errorf("filter URL: %w", err)
+				}
+
+				logger.Debug(fmt.Sprintf("download file from '%s'", dl.Url))
+
+				req, err := retryablehttp.NewRequest(http.MethodGet, dl.Url, nil)
+				if err != nil {
+					return fmt.Errorf("create request to '%s': %w", dl.Url, err)
+				}
+
+				req.Header.Set("User-Agent", "Gotenberg")
+				for key, value := range dl.ExtraHttpHeaders {
+					req.Header.Set(key, value)
+				}
+				req.Header.Set(traceHeader, trace)
+
+				client := &retryablehttp.Client{
+					HTTPClient: &http.Client{
+						Timeout: time.Until(deadline),
+					},
+					RetryMax:     downloadFromCfg.maxRetry,
+					RetryWaitMin: time.Duration(1) * time.Second,
+					RetryWaitMax: time.Until(deadline),
+					Logger:       gotenberg.NewLeveledLogger(logger),
+					CheckRetry:   retryablehttp.DefaultRetryPolicy,
+					Backoff:      retryablehttp.DefaultBackoff,
+				}
+
+				resp, err := client.Do(req)
+				if err != nil {
+					return WrapError(
+						fmt.Errorf("download file from to '%s': %w", dl.Url, err),
+						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Unable to download file from '%s': %s", dl.Url, err)),
+					)
+				}
+				defer func() {
+					err := resp.Body.Close()
+					if err != nil {
+						logger.Error(fmt.Sprintf("close response body from '%s': %s", dl.Url, err))
+					}
+				}()
+
+				if resp.StatusCode != http.StatusOK {
+					return WrapError(
+						fmt.Errorf("download file from to '%s': got status: '%s'", dl.Url, resp.Status),
+						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Unable to download file from '%s': got status: '%s'", dl.Url, resp.Status)),
+					)
+				}
+
+				contentDisposition := resp.Header.Get("Content-Disposition")
+				if contentDisposition == "" {
+					return WrapError(
+						fmt.Errorf("no 'Content-Disposition' header from '%s'", dl.Url),
+						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("No 'Content-Disposition' header from '%s'", dl.Url)),
+					)
+				}
+
+				// FIXME: the implementation of this method might not be
+				//  complete, as it fails to parse an empty mediatype.
+				//  See: https://github.com/golang/go/issues/69551.
+				_, params, err := mime.ParseMediaType(contentDisposition)
+				if err != nil {
+					return WrapError(
+						fmt.Errorf("parse 'Content-Disposition' header '%s' from '%s': %w", contentDisposition, dl.Url, err),
+						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Invalid 'Content-Disposition' header '%s' from '%s': %s", contentDisposition, dl.Url, err)),
+					)
+				}
+
+				filename, ok := params["filename"]
+				if !ok {
+					return WrapError(
+						fmt.Errorf("get filename from 'Content-Disposition' header '%s' from '%s'", contentDisposition, dl.Url),
+						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Invalid 'Content-Disposition' header '%s' from '%s': no filename", contentDisposition, dl.Url)),
+					)
+				}
+
+				// Avoid directory traversal and make sure filename characters are
+				// normalized.
+				// See: https://github.com/gotenberg/gotenberg/issues/662.
+				filename = norm.NFC.String(filepath.Base(filename))
+				path := fmt.Sprintf("%s/%s", ctx.dirPath, filename)
+
+				out, err := os.Create(path)
+				if err != nil {
+					return fmt.Errorf("create local file: %w", err)
+				}
+				defer func() {
+					err := out.Close()
+					if err != nil {
+						logger.Error(fmt.Sprintf("close local file: %s", err))
+					}
+				}()
+
+				// This will ensure we do not exceed the body limit.
+				reader := &trackingReader{R: resp.Body, AddReadBytes: addReadBytes}
+
+				_, err = io.Copy(out, reader)
+				if err != nil {
+					return fmt.Errorf("copy downloaded file from '%s' to local file: %w", dl.Url, err)
+				}
+
+				ctx.files[filename] = path
+
+				return nil
+			})
+		}
+
+		err = eg.Wait()
+		if err != nil {
+			return ctx, cancel, err
+		}
+	}
+
 	copyToDisk := func(fh *multipart.FileHeader) error {
 		in, err := fh.Open()
 		if err != nil {
@@ -139,6 +342,9 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSyst
 			}
 		}()
 
+		// This will ensure we do not exceed the body limit.
+		reader := &trackingReader{R: in, AddReadBytes: addReadBytes}
+
 		// Avoid directory traversal and make sure filename characters are
 		// normalized.
 		// See: https://github.com/gotenberg/gotenberg/issues/662.
@@ -149,7 +355,6 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSyst
 		if err != nil {
 			return fmt.Errorf("create local file: %w", err)
 		}
-
 		defer func() {
 			err := out.Close()
 			if err != nil {
@@ -157,7 +362,7 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSyst
 			}
 		}()
 
-		_, err = io.Copy(out, in)
+		_, err = io.Copy(out, reader)
 		if err != nil {
 			return fmt.Errorf("copy multipart file to local file: %w", err)
 		}
@@ -167,6 +372,7 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSyst
 		return nil
 	}
 
+	// Then, copy the form files, if any.
 	for _, files := range form.File {
 		for _, fh := range files {
 			err = copyToDisk(fh)
@@ -178,6 +384,7 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, fs *gotenberg.FileSyst
 
 	ctx.Log().Debug(fmt.Sprintf("form fields: %+v", ctx.values))
 	ctx.Log().Debug(fmt.Sprintf("form files: %+v", ctx.files))
+	ctx.Log().Debug(fmt.Sprintf("total bytes: %d", totalBytesRead.Load()))
 
 	return ctx, cancel, err
 }
@@ -202,9 +409,21 @@ func (ctx *Context) GeneratePath(extension string) string {
 	return fmt.Sprintf("%s/%s%s", ctx.dirPath, uuid.New().String(), extension)
 }
 
+// CreateSubDirectory creates a subdirectory within the context's working
+// directory.
+func (ctx *Context) CreateSubDirectory(dirName string) (string, error) {
+	path := fmt.Sprintf("%s/%s", ctx.dirPath, dirName)
+	err := ctx.mkdirAll.MkdirAll(path, 0o755)
+	if err != nil {
+		return "", fmt.Errorf("create sub-directory %s: %w", path, err)
+	}
+	return path, nil
+}
+
 // Rename is just a wrapper around [os.Rename], as we need to mock this
 // behavior in our tests.
 func (ctx *Context) Rename(oldpath, newpath string) error {
+	ctx.Log().Debug(fmt.Sprintf("rename %s to %s", oldpath, newpath))
 	err := ctx.pathRename.Rename(oldpath, newpath)
 	if err != nil {
 		return fmt.Errorf("rename path: %w", err)
@@ -248,22 +467,33 @@ func (ctx *Context) BuildOutputFile() (string, error) {
 
 	if len(ctx.outputPaths) == 1 {
 		ctx.logger.Debug(fmt.Sprintf("only one output file '%s', skip archive creation", ctx.outputPaths[0]))
-
 		return ctx.outputPaths[0], nil
 	}
 
-	z := archiver.Zip{
-		CompressionLevel:       flate.DefaultCompression,
-		MkdirAll:               true,
-		SelectiveCompression:   true,
-		ContinueOnError:        false,
-		OverwriteExisting:      false,
-		ImplicitTopLevelFolder: false,
+	filesInfo, err := archives.FilesFromDisk(ctx.Context, nil, func() map[string]string {
+		f := make(map[string]string)
+		for _, outputPath := range ctx.outputPaths {
+			f[outputPath] = ""
+		}
+		return f
+	}())
+	if err != nil {
+		return "", fmt.Errorf("create files info: %w", err)
 	}
 
 	archivePath := ctx.GeneratePath(".zip")
+	out, err := os.Create(archivePath)
+	if err != nil {
+		return "", fmt.Errorf("create zip file: %w", err)
+	}
+	defer func(out *os.File) {
+		err := out.Close()
+		if err != nil {
+			ctx.logger.Error(fmt.Sprintf("close zip file: %s", err))
+		}
+	}(out)
 
-	err := z.Archive(ctx.outputPaths, archivePath)
+	err = archives.Zip{}.Archive(ctx.Context, out, filesInfo)
 	if err != nil {
 		return "", fmt.Errorf("archive output files: %w", err)
 	}
@@ -284,8 +514,3 @@ func (ctx *Context) OutputFilename(outputPath string) string {
 
 	return fmt.Sprintf("%s%s", filename, filepath.Ext(outputPath))
 }
-
-// Interface guard.
-var (
-	_ gotenberg.PathRename = (*osPathRename)(nil)
-)

pkg/modules/api/context_test.go

@@ -1,449 +0,0 @@
-package api
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"mime/multipart"
-	"net/http"
-	"net/http/httptest"
-	"os"
-	"path/filepath"
-	"reflect"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/google/uuid"
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestOsPathRename_Rename(t *testing.T) {
-	dirPath, err := gotenberg.NewFileSystem().MkdirAll()
-	if err != nil {
-		t.Fatalf("create working directory: %v", err)
-	}
-
-	path := "/tests/test/testdata/api/sample1.txt"
-	copyPath := filepath.Join(dirPath, fmt.Sprintf("%s.txt", uuid.NewString()))
-
-	in, err := os.Open(path)
-	if err != nil {
-		t.Fatalf("open file: %v", err)
-	}
-
-	defer func() {
-		err := in.Close()
-		if err != nil {
-			t.Fatalf("close file: %v", err)
-		}
-	}()
-
-	out, err := os.Create(copyPath)
-	if err != nil {
-		t.Fatalf("create new file: %v", err)
-	}
-
-	defer func() {
-		err := out.Close()
-		if err != nil {
-			t.Fatalf("close new file: %v", err)
-		}
-	}()
-
-	_, err = io.Copy(out, in)
-	if err != nil {
-		t.Fatalf("copy file to new file: %v", err)
-	}
-
-	rename := new(osPathRename)
-	newPath := filepath.Join(dirPath, fmt.Sprintf("%s.txt", uuid.NewString()))
-
-	err = rename.Rename(copyPath, newPath)
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-
-	err = os.RemoveAll(dirPath)
-	if err != nil {
-		t.Fatalf("remove working directory: %v", err)
-	}
-}
-
-func TestNewContext(t *testing.T) {
-	for _, tc := range []struct {
-		scenario         string
-		request          *http.Request
-		expectError      bool
-		expectHttpError  bool
-		expectHttpStatus int
-	}{
-		{
-			scenario:         "http.ErrNotMultipart",
-			request:          httptest.NewRequest(http.MethodPost, "/", nil),
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusUnsupportedMediaType,
-		},
-		{
-			scenario: "http.ErrMissingBoundary",
-			request: func() *http.Request {
-				req := httptest.NewRequest(http.MethodPost, "/", nil)
-				req.Header.Set(echo.HeaderContentType, echo.MIMEMultipartForm)
-				return req
-			}(),
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusUnsupportedMediaType,
-		},
-		{
-			scenario: "malformed body",
-			request: func() *http.Request {
-				body := &bytes.Buffer{}
-				writer := multipart.NewWriter(body)
-				defer func() {
-					err := writer.Close()
-					if err != nil {
-						t.Fatalf("expected no error but got: %v", err)
-					}
-				}()
-				err := writer.WriteField("foo", "foo")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				req := httptest.NewRequest(http.MethodPost, "/", nil)
-				req.Header.Set(echo.HeaderContentType, writer.FormDataContentType())
-				return req
-			}(),
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "success",
-			request: func() *http.Request {
-				body := &bytes.Buffer{}
-				writer := multipart.NewWriter(body)
-				defer func() {
-					err := writer.Close()
-					if err != nil {
-						t.Fatalf("expected no error but got: %v", err)
-					}
-				}()
-				err := writer.WriteField("foo", "foo")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				part, err := writer.CreateFormFile("foo.txt", "foo.txt")
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				_, err = part.Write([]byte("foo"))
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				req := httptest.NewRequest(http.MethodPost, "/", body)
-				req.Header.Set(echo.HeaderContentType, writer.FormDataContentType())
-				return req
-			}(),
-			expectError:     false,
-			expectHttpError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			handler := func(c echo.Context) error {
-				_, cancel, err := newContext(c, zap.NewNop(), gotenberg.NewFileSystem(), time.Duration(10)*time.Second)
-				defer cancel()
-				// Context already cancelled.
-				defer cancel()
-
-				if err != nil {
-					return err
-				}
-
-				return nil
-			}
-
-			recorder := httptest.NewRecorder()
-
-			srv := echo.New()
-			srv.HideBanner = true
-			srv.HidePort = true
-
-			c := srv.NewContext(tc.request, recorder)
-			err := handler(c)
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none", err)
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			var httpErr HttpError
-			isHttpError := errors.As(err, &httpErr)
-
-			if tc.expectHttpError && !isHttpError {
-				t.Errorf("expected an HTTP error but got: %v", err)
-			}
-
-			if !tc.expectHttpError && isHttpError {
-				t.Errorf("expected no HTTP error but got one: %v", httpErr)
-			}
-
-			if err != nil && tc.expectHttpError && isHttpError {
-				status, _ := httpErr.HttpError()
-				if status != tc.expectHttpStatus {
-					t.Errorf("expected %d as HTTP status code but got %d", tc.expectHttpStatus, status)
-				}
-			}
-		})
-	}
-}
-
-func TestContext_Request(t *testing.T) {
-	request := httptest.NewRequest(http.MethodPost, "/", nil)
-	recorder := httptest.NewRecorder()
-	c := echo.New().NewContext(request, recorder)
-
-	ctx := &Context{
-		echoCtx: c,
-	}
-
-	if !reflect.DeepEqual(ctx.Request(), c.Request()) {
-		t.Errorf("expected %v but got %v", ctx.Request(), c.Request())
-	}
-}
-
-func TestContext_FormData(t *testing.T) {
-	ctx := &Context{
-		values: map[string][]string{
-			"foo": {"foo"},
-		},
-		files: map[string]string{
-			"foo.txt": "/foo.txt",
-		},
-	}
-
-	actual := ctx.FormData()
-	expect := &FormData{
-		values: ctx.values,
-		files:  ctx.files,
-	}
-
-	if !reflect.DeepEqual(actual, expect) {
-		t.Errorf("expected %+v but got %+v", expect, actual)
-	}
-}
-
-func TestContext_GeneratePath(t *testing.T) {
-	ctx := &Context{
-		dirPath: "/foo",
-	}
-
-	path := ctx.GeneratePath(".pdf")
-	if !strings.HasPrefix(path, ctx.dirPath) {
-		t.Errorf("expected '%s' to start with '%s'", path, ctx.dirPath)
-	}
-}
-
-func TestContext_Rename(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *Context
-		expectError bool
-	}{
-		{
-			scenario: "failure",
-			ctx: &Context{pathRename: &gotenberg.PathRenameMock{RenameMock: func(oldpath, newpath string) error {
-				return errors.New("cannot rename")
-			}}},
-			expectError: true,
-		},
-		{
-			scenario: "success",
-			ctx: &Context{pathRename: &gotenberg.PathRenameMock{RenameMock: func(oldpath, newpath string) error {
-				return nil
-			}}},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			err := tc.ctx.Rename("", "")
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none", err)
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-		})
-	}
-}
-
-func TestContext_AddOutputPaths(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *Context
-		path        string
-		expectCount int
-		expectError bool
-	}{
-		{
-			scenario:    "ErrContextAlreadyClosed",
-			ctx:         &Context{cancelled: true},
-			expectCount: 0,
-			expectError: true,
-		},
-		{
-			scenario:    "ErrOutOfBoundsOutputPath",
-			ctx:         &Context{dirPath: "/foo"},
-			path:        "/bar/foo.txt",
-			expectCount: 0,
-			expectError: true,
-		},
-		{
-			scenario:    "success",
-			ctx:         &Context{dirPath: "/foo"},
-			path:        "/foo/foo.txt",
-			expectCount: 1,
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			err := tc.ctx.AddOutputPaths(tc.path)
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none", err)
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if len(tc.ctx.outputPaths) != tc.expectCount {
-				t.Errorf("expected %d output paths but got %d", tc.expectCount, len(tc.ctx.outputPaths))
-			}
-		})
-	}
-}
-
-func TestContext_Log(t *testing.T) {
-	expect := zap.NewNop()
-	ctx := Context{logger: expect}
-	actual := ctx.Log()
-
-	if !reflect.DeepEqual(actual, expect) {
-		t.Errorf("expected %v but got %v", expect, actual)
-	}
-}
-
-func TestContext_BuildOutputFile(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *Context
-		expectError bool
-	}{
-		{
-			scenario:    "ErrContextAlreadyClosed",
-			ctx:         &Context{cancelled: true},
-			expectError: true,
-		},
-		{
-			scenario:    "no output path",
-			ctx:         &Context{},
-			expectError: true,
-		},
-		{
-			scenario:    "success: one output path",
-			ctx:         &Context{outputPaths: []string{"foo.txt"}},
-			expectError: false,
-		},
-		{
-			scenario:    "cannot archive: invalid output paths",
-			ctx:         &Context{outputPaths: []string{"foo.txt", "foo.pdf"}},
-			expectError: true,
-		},
-		{
-			scenario: "success: many output paths",
-			ctx: &Context{
-				outputPaths: []string{
-					"/tests/test/testdata/api/sample1.txt",
-					"/tests/test/testdata/api/sample1.txt",
-				},
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			fs := gotenberg.NewFileSystem()
-			dirPath, err := fs.MkdirAll()
-			if err != nil {
-				t.Fatalf("expected no erro but got: %v", err)
-			}
-
-			defer func() {
-				err := os.RemoveAll(fs.WorkingDirPath())
-				if err != nil {
-					t.Fatalf("expected no error while cleaning up but got: %v", err)
-				}
-			}()
-
-			tc.ctx.dirPath = dirPath
-			tc.ctx.logger = zap.NewNop()
-
-			_, err = tc.ctx.BuildOutputFile()
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none", err)
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-		})
-	}
-}
-
-func TestContext_OutputFilename(t *testing.T) {
-	for _, tc := range []struct {
-		scenario             string
-		ctx                  *Context
-		outputPath           string
-		expectOutputFilename string
-	}{
-		{
-			scenario: "with Gotenberg-Output-Filename header",
-			ctx: func() *Context {
-				c := echo.New().NewContext(httptest.NewRequest(http.MethodGet, "/foo", nil), nil)
-				c.Request().Header.Set("Gotenberg-Output-Filename", "foo")
-				return &Context{echoCtx: c}
-			}(),
-			outputPath:           "/foo/bar.txt",
-			expectOutputFilename: "foo.txt",
-		},
-		{
-			scenario: "without custom filename",
-			ctx: func() *Context {
-				c := echo.New().NewContext(httptest.NewRequest(http.MethodGet, "/foo", nil), nil)
-				return &Context{echoCtx: c}
-			}(),
-			outputPath:           "/foo/foo.txt",
-			expectOutputFilename: "foo.txt",
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			actual := tc.ctx.OutputFilename(tc.outputPath)
-
-			if actual != tc.expectOutputFilename {
-				t.Errorf("expected '%s' but got '%s'", tc.expectOutputFilename, actual)
-			}
-		})
-	}
-}

pkg/modules/api/formdata_test.go

@@ -1425,36 +1425,36 @@ func TestFormData_Content(t *testing.T) {
 			scenario: "file does exist without file extension",
 			form: &FormData{
 				files: map[string]string{
-					"foo": "/tests/test/testdata/api/sample1.txt",
+					"foo": "testdata/sample.txt",
 				},
 			},
 			filename:     "foo",
 			defaultValue: "",
-			expect:       "foo",
+			expect:       "This is a text from a text file.",
 			expectError:  false,
 		},
 		{
 			scenario: "file does exist with an uppercase file extension",
 			form: &FormData{
 				files: map[string]string{
-					"foo.TXT": "/tests/test/testdata/api/sample1.txt",
+					"foo.TXT": "testdata/sample.txt",
 				},
 			},
 			filename:     "foo.txt",
 			defaultValue: "",
-			expect:       "foo",
+			expect:       "This is a text from a text file.",
 			expectError:  false,
 		},
 		{
 			scenario: "file does exist without a lowercase file extension",
 			form: &FormData{
 				files: map[string]string{
-					"foo.txt": "/tests/test/testdata/api/sample1.txt",
+					"foo.txt": "testdata/sample.txt",
 				},
 			},
 			filename:     "foo.txt",
 			defaultValue: "",
-			expect:       "foo",
+			expect:       "This is a text from a text file.",
 			expectError:  false,
 		},
 	} {
@@ -1519,33 +1519,33 @@ func TestFormData_MandatoryContent(t *testing.T) {
 			scenario: "mandatory file does exist without file extension",
 			form: &FormData{
 				files: map[string]string{
-					"foo": "/tests/test/testdata/api/sample1.txt",
+					"foo": "testdata/sample.txt",
 				},
 			},
 			filename:    "foo",
-			expect:      "foo",
+			expect:      "This is a text from a text file.",
 			expectError: false,
 		},
 		{
 			scenario: "mandatory file does exist with an uppercase file extension",
 			form: &FormData{
 				files: map[string]string{
-					"foo.TXT": "/tests/test/testdata/api/sample1.txt",
+					"foo.TXT": "testdata/sample.txt",
 				},
 			},
 			filename:    "foo.txt",
-			expect:      "foo",
+			expect:      "This is a text from a text file.",
 			expectError: false,
 		},
 		{
 			scenario: "mandatory file does exist without a lowercase file extension",
 			form: &FormData{
 				files: map[string]string{
-					"foo.txt": "/tests/test/testdata/api/sample1.txt",
+					"foo.txt": "testdata/sample.txt",
 				},
 			},
 			filename:    "foo.txt",
-			expect:      "foo",
+			expect:      "This is a text from a text file.",
 			expectError: false,
 		},
 	} {

pkg/modules/api/middlewares.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"context"
+	"crypto/subtle"
 	"errors"
 	"fmt"
 	"net/http"
@@ -10,6 +11,7 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/labstack/echo/v4"
+	"github.com/labstack/echo/v4/middleware"
 	"go.uber.org/zap"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
@@ -46,6 +48,10 @@ func ParseError(err error) (int, string) {
 		return http.StatusTooManyRequests, http.StatusText(http.StatusTooManyRequests)
 	}
 
+	if errors.Is(err, gotenberg.ErrPdfSplitModeNotSupported) {
+		return http.StatusBadRequest, "At least one PDF engine cannot process the requested PDF split mode, while others may have failed to split due to different issues"
+	}
+
 	if errors.Is(err, gotenberg.ErrPdfFormatNotSupported) {
 		return http.StatusBadRequest, "At least one PDF engine cannot process the requested PDF format, while others may have failed to convert due to different issues"
 	}
@@ -112,7 +118,6 @@ func rootPathMiddleware(rootPath string) echo.MiddlewareFunc {
 	return func(next echo.HandlerFunc) echo.HandlerFunc {
 		return func(c echo.Context) error {
 			c.Set("rootPath", rootPath)
-
 			// Call the next middleware in the chain.
 			return next(c)
 		}
@@ -156,9 +161,12 @@ func loggerMiddleware(logger *zap.Logger, disableLoggingForPaths []string) echo.
 			trace := c.Get("trace").(string)
 			rootPath := c.Get("rootPath").(string)
 
-			// Create the request logger and add it to our locals.
-			reqLogger := logger.With(zap.String("trace", trace))
-			c.Set("logger", reqLogger.Named(func() string {
+			// Create the application logger and add it to our locals.
+			appLogger := logger.
+				With(zap.String("log_type", "application")).
+				With(zap.String("trace", trace))
+
+			c.Set("logger", appLogger.Named(func() string {
 				return strings.ReplaceAll(
 					strings.ReplaceAll(c.Request().URL.Path, rootPath, ""),
 					"/",
@@ -172,6 +180,11 @@ func loggerMiddleware(logger *zap.Logger, disableLoggingForPaths []string) echo.
 				c.Error(err)
 			}
 
+			// Create the access logger.
+			accessLogger := logger.
+				With(zap.String("log_type", "access")).
+				With(zap.String("trace", trace))
+
 			for _, path := range disableLoggingForPaths {
 				URI := fmt.Sprintf("%s%s", rootPath, path)
 
@@ -207,9 +220,9 @@ func loggerMiddleware(logger *zap.Logger, disableLoggingForPaths []string) echo.
 			fields[11] = zap.Int64("bytes_out", c.Response().Size)
 
 			if err != nil {
-				reqLogger.Error(err.Error(), fields...)
+				accessLogger.Error(err.Error(), fields...)
 			} else {
-				reqLogger.Info("request handled", fields...)
+				accessLogger.Info("request handled", fields...)
 			}
 
 			return nil
@@ -217,6 +230,17 @@ func loggerMiddleware(logger *zap.Logger, disableLoggingForPaths []string) echo.
 	}
 }
 
+// basicAuthMiddleware manages basic authentication.
+func basicAuthMiddleware(username, password string) echo.MiddlewareFunc {
+	return middleware.BasicAuth(func(u string, p string, e echo.Context) (bool, error) {
+		if subtle.ConstantTimeCompare([]byte(u), []byte(username)) == 1 &&
+			subtle.ConstantTimeCompare([]byte(p), []byte(password)) == 1 {
+			return true, nil
+		}
+		return false, nil
+	})
+}
+
 // contextMiddleware, a middleware for "multipart/form-data" requests, sets the
 // [Context] and related context.CancelFunc in the [echo.Context] under
 // "context" and "cancel". If the process is synchronous, it also handles the
@@ -224,14 +248,16 @@ func loggerMiddleware(logger *zap.Logger, disableLoggingForPaths []string) echo.
 //
 //	ctx := c.Get("context").(*api.Context)
 //	cancel := c.Get("cancel").(context.CancelFunc)
-func contextMiddleware(fs *gotenberg.FileSystem, timeout time.Duration) echo.MiddlewareFunc {
+func contextMiddleware(fs *gotenberg.FileSystem, timeout time.Duration, bodyLimit int64, downloadFromCfg downloadFromConfig) echo.MiddlewareFunc {
 	return func(next echo.HandlerFunc) echo.HandlerFunc {
 		return func(c echo.Context) error {
 			logger := c.Get("logger").(*zap.Logger)
+			traceHeader := c.Get("traceHeader").(string)
+			trace := c.Get("trace").(string)
 
 			// We create a context with a timeout so that underlying processes are
 			// able to stop early and handle correctly a timeout scenario.
-			ctx, cancel, err := newContext(c, logger, fs, timeout)
+			ctx, cancel, err := newContext(c, logger, fs, timeout, bodyLimit, downloadFromCfg, traceHeader, trace)
 			if err != nil {
 				cancel()
 

pkg/modules/api/middlewares_test.go

@@ -1,528 +0,0 @@
-package api
-
-import (
-	"bytes"
-	"context"
-	"errors"
-	"mime/multipart"
-	"net/http"
-	"net/http/httptest"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestParseError(t *testing.T) {
-	for i, tc := range []struct {
-		err           error
-		expectStatus  int
-		expectMessage string
-	}{
-		{
-			err:           echo.ErrInternalServerError,
-			expectStatus:  http.StatusInternalServerError,
-			expectMessage: http.StatusText(http.StatusInternalServerError),
-		},
-		{
-			err:           gotenberg.ErrFiltered,
-			expectStatus:  http.StatusForbidden,
-			expectMessage: http.StatusText(http.StatusForbidden),
-		},
-		{
-			err:           gotenberg.ErrMaximumQueueSizeExceeded,
-			expectStatus:  http.StatusTooManyRequests,
-			expectMessage: http.StatusText(http.StatusTooManyRequests),
-		},
-		{
-			err:           gotenberg.ErrPdfFormatNotSupported,
-			expectStatus:  http.StatusBadRequest,
-			expectMessage: "At least one PDF engine cannot process the requested PDF format, while others may have failed to convert due to different issues",
-		},
-		{
-			err:           gotenberg.ErrPdfEngineMetadataValueNotSupported,
-			expectStatus:  http.StatusBadRequest,
-			expectMessage: "At least one PDF engine cannot process the requested metadata, while others may have failed to convert due to different issues",
-		},
-		{
-			err: WrapError(
-				errors.New("foo"),
-				NewSentinelHttpError(http.StatusBadRequest, "foo"),
-			),
-			expectStatus:  http.StatusBadRequest,
-			expectMessage: "foo",
-		},
-	} {
-		actualStatus, actualMessage := ParseError(tc.err)
-
-		if actualStatus != tc.expectStatus {
-			t.Errorf("test %d: expected HTTP status code %d but got %d", i, tc.expectStatus, actualStatus)
-		}
-
-		if actualMessage != tc.expectMessage {
-			t.Errorf("test %d: expected message '%s' but got '%s'", i, tc.expectMessage, actualMessage)
-		}
-	}
-}
-
-func TestHttpErrorHandler(t *testing.T) {
-	for i, tc := range []struct {
-		err           error
-		expectStatus  int
-		expectMessage string
-	}{
-		{
-			err:           echo.ErrInternalServerError,
-			expectStatus:  http.StatusInternalServerError,
-			expectMessage: http.StatusText(http.StatusInternalServerError),
-		},
-		{
-			err:           context.DeadlineExceeded,
-			expectStatus:  http.StatusServiceUnavailable,
-			expectMessage: http.StatusText(http.StatusServiceUnavailable),
-		},
-		{
-			err: WrapError(
-				errors.New("foo"),
-				NewSentinelHttpError(http.StatusBadRequest, "foo"),
-			),
-			expectStatus:  http.StatusBadRequest,
-			expectMessage: "foo",
-		},
-	} {
-		recorder := httptest.NewRecorder()
-		request := httptest.NewRequest(http.MethodGet, "/foo", nil)
-
-		srv := echo.New()
-		srv.HideBanner = true
-		srv.HidePort = true
-
-		c := srv.NewContext(request, recorder)
-		c.Set("logger", zap.NewNop())
-
-		handler := httpErrorHandler()
-		handler(tc.err, c)
-
-		contentType := recorder.Header().Get(echo.HeaderContentType)
-		if contentType != echo.MIMETextPlainCharsetUTF8 {
-			t.Errorf("test %d: expected %s '%s' but got '%s'", i, echo.HeaderContentType, echo.MIMETextPlainCharsetUTF8, contentType)
-		}
-
-		// Note: we cannot test the trace header in the response here, as it is set in the trace middleware.
-
-		if recorder.Code != tc.expectStatus {
-			t.Errorf("test %d: expected HTTP status code %d but got %d", i, tc.expectStatus, recorder.Code)
-		}
-
-		if recorder.Body.String() != tc.expectMessage {
-			t.Errorf("test %d: expected message '%s' but got '%s'", i, tc.expectMessage, recorder.Body.String())
-		}
-	}
-}
-
-func TestLatencyMiddleware(t *testing.T) {
-	recorder := httptest.NewRecorder()
-	request := httptest.NewRequest(http.MethodGet, "/foo", nil)
-
-	srv := echo.New()
-	srv.HideBanner = true
-	srv.HidePort = true
-
-	c := srv.NewContext(request, recorder)
-
-	err := latencyMiddleware()(
-		func(c echo.Context) error {
-			return nil
-		},
-	)(c)
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-
-	startTime := c.Get("startTime").(time.Time)
-	now := time.Now()
-
-	if now.Before(startTime) {
-		t.Errorf("expected start time %s to be < %s", startTime, now)
-	}
-}
-
-func TestRootPathMiddleware(t *testing.T) {
-	recorder := httptest.NewRecorder()
-	request := httptest.NewRequest(http.MethodGet, "/foo", nil)
-
-	srv := echo.New()
-	srv.HideBanner = true
-	srv.HidePort = true
-
-	c := srv.NewContext(request, recorder)
-
-	err := rootPathMiddleware("foo")(
-		func(c echo.Context) error {
-			return nil
-		},
-	)(c)
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-
-	rootPath := c.Get("rootPath").(string)
-
-	if rootPath != "foo" {
-		t.Errorf("expected '%s' but got '%s", "foo", rootPath)
-	}
-}
-
-func TestTraceMiddleware(t *testing.T) {
-	for i, tc := range []struct {
-		trace string
-	}{
-		{
-			trace: "foo",
-		},
-		{
-			trace: "",
-		},
-	} {
-		recorder := httptest.NewRecorder()
-		request := httptest.NewRequest(http.MethodGet, "/foo", nil)
-
-		srv := echo.New()
-		srv.HideBanner = true
-		srv.HidePort = true
-
-		c := srv.NewContext(request, recorder)
-
-		if tc.trace != "" {
-			c.Request().Header.Set("Gotenberg-Trace", tc.trace)
-		}
-
-		err := traceMiddleware("Gotenberg-Trace")(
-			func(c echo.Context) error {
-				return nil
-			},
-		)(c)
-		if err != nil {
-			t.Fatalf("test %d: expected no error but got: %v", i, err)
-		}
-
-		trace := c.Get("trace").(string)
-
-		if trace == "" {
-			t.Errorf("test %d: expected non empty trace in context", i)
-		}
-
-		if tc.trace != "" && trace != tc.trace {
-			t.Errorf("test %d: expected context trace '%s' but got '%s'", i, tc.trace, trace)
-		}
-
-		if tc.trace == "" && trace == tc.trace {
-			t.Errorf("test %d: expected context trace different from '%s' but got '%s'", i, tc.trace, trace)
-		}
-
-		responseTrace := recorder.Header().Get("Gotenberg-Trace")
-
-		if tc.trace != "" && responseTrace != tc.trace {
-			t.Errorf("test %d: expected header trace '%s' but got '%s'", i, tc.trace, responseTrace)
-		}
-
-		if tc.trace == "" && responseTrace == tc.trace {
-			t.Errorf("test %d: expected header trace different from '%s' but got '%s'", i, tc.trace, responseTrace)
-		}
-	}
-}
-
-func TestLoggerMiddleware(t *testing.T) {
-	for i, tc := range []struct {
-		request     *http.Request
-		next        echo.HandlerFunc
-		skipLogging bool
-	}{
-		{
-			request: httptest.NewRequest(http.MethodGet, "/", nil),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return errors.New("foo")
-				}
-			}(),
-		},
-		{
-			request: httptest.NewRequest(http.MethodGet, "/health", nil),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return nil
-				}
-			}(),
-			skipLogging: true,
-		},
-		{
-			request: httptest.NewRequest(http.MethodGet, "/health", nil),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return nil
-				}
-			}(),
-		},
-	} {
-		recorder := httptest.NewRecorder()
-
-		srv := echo.New()
-		srv.HideBanner = true
-		srv.HidePort = true
-
-		c := srv.NewContext(tc.request, recorder)
-		c.Set("startTime", time.Now())
-		c.Set("trace", "foo")
-		c.Set("rootPath", "/")
-
-		var disableLoggingForPaths []string
-		if tc.skipLogging {
-			disableLoggingForPaths = append(disableLoggingForPaths, tc.request.RequestURI)
-		}
-
-		err := loggerMiddleware(zap.NewNop(), disableLoggingForPaths)(tc.next)(c)
-		if err != nil {
-			t.Errorf("test %d: expected no error but got: %v", i, err)
-		}
-	}
-}
-
-func TestContextMiddleware(t *testing.T) {
-	buildMultipartFormDataRequest := func() *http.Request {
-		body := &bytes.Buffer{}
-		writer := multipart.NewWriter(body)
-
-		defer func() {
-			err := writer.Close()
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-		}()
-
-		err := writer.WriteField("foo", "foo")
-		if err != nil {
-			t.Fatalf("expected no error but got: %v", err)
-		}
-
-		req := httptest.NewRequest(http.MethodPost, "/", body)
-		req.Header.Set(echo.HeaderContentType, writer.FormDataContentType())
-
-		return req
-	}
-
-	for i, tc := range []struct {
-		request           *http.Request
-		next              echo.HandlerFunc
-		expectErr         bool
-		expectStatus      int
-		expectContentType string
-		expectFilename    string
-	}{
-		{
-			request:   httptest.NewRequest(http.MethodGet, "/", nil),
-			expectErr: true,
-		},
-		{
-			request: buildMultipartFormDataRequest(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return ErrAsyncProcess
-				}
-			}(),
-			expectStatus: http.StatusNoContent,
-		},
-		{
-			request: buildMultipartFormDataRequest(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return ErrNoOutputFile
-				}
-			}(),
-			expectStatus: http.StatusOK,
-		},
-		{
-			request: buildMultipartFormDataRequest(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return errors.New("foo")
-				}
-			}(),
-			expectErr: true,
-		},
-		{
-			request: buildMultipartFormDataRequest(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return nil
-				}
-			}(),
-			expectErr: true,
-		},
-		{
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Output-Filename", "foo")
-
-				return req
-			}(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					ctx := c.Get("context").(*Context)
-					ctx.outputPaths = []string{
-						"/tests/test/testdata/api/sample2.pdf",
-					}
-
-					return nil
-				}
-			}(),
-			expectStatus:      http.StatusOK,
-			expectContentType: "application/pdf",
-			expectFilename:    "foo.pdf",
-		},
-		{
-			request: buildMultipartFormDataRequest(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					ctx := c.Get("context").(*Context)
-					ctx.outputPaths = []string{
-						"/tests/test/testdata/api/sample1.txt",
-						"/tests/test/testdata/api/sample2.pdf",
-					}
-
-					return nil
-				}
-			}(),
-			expectStatus:      http.StatusOK,
-			expectContentType: "application/zip",
-		},
-	} {
-		recorder := httptest.NewRecorder()
-
-		srv := echo.New()
-		srv.HideBanner = true
-		srv.HidePort = true
-
-		c := srv.NewContext(tc.request, recorder)
-		c.Set("logger", zap.NewNop())
-		c.Set("trace", "foo")
-		c.Set("startTime", time.Now())
-
-		err := contextMiddleware(gotenberg.NewFileSystem(), time.Duration(10)*time.Second)(tc.next)(c)
-
-		if tc.expectErr && err == nil {
-			t.Errorf("test %d: expected error but got: %v", i, err)
-		}
-
-		if !tc.expectErr && err != nil {
-			t.Errorf("test %d: expected no error but got: %v", i, err)
-		}
-
-		if err != nil {
-			continue
-		}
-
-		if recorder.Code != tc.expectStatus {
-			t.Errorf("test %d: expected HTTP status code %d but got %d", i, tc.expectStatus, recorder.Code)
-		}
-
-		if tc.expectStatus == http.StatusNoContent {
-			continue
-		}
-
-		contentType := recorder.Header().Get(echo.HeaderContentType)
-		if contentType != tc.expectContentType {
-			t.Errorf("test %d: expected %s '%s' but got '%s'", i, echo.HeaderContentType, tc.expectContentType, contentType)
-		}
-
-		contentDisposition := recorder.Header().Get(echo.HeaderContentDisposition)
-		if !strings.Contains(contentDisposition, tc.expectFilename) {
-			t.Errorf("test %d: expected %s '%s' to contain '%s'", i, echo.HeaderContentDisposition, contentDisposition, tc.expectFilename)
-		}
-	}
-}
-
-func TestHardTimeoutMiddleware(t *testing.T) {
-	for i, tc := range []struct {
-		next              echo.HandlerFunc
-		timeout           time.Duration
-		expectErr         bool
-		expectHardTimeout bool
-	}{
-		{
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return nil
-				}
-			}(),
-			timeout: time.Duration(100) * time.Millisecond,
-		},
-		{
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					panic("foo")
-				}
-			}(),
-			timeout:           time.Duration(100) * time.Millisecond,
-			expectErr:         true,
-			expectHardTimeout: true,
-		},
-		{
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return errors.New("foo")
-				}
-			}(),
-			timeout:   time.Duration(100) * time.Millisecond,
-			expectErr: true,
-		},
-		{
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					time.Sleep(time.Duration(200) * time.Millisecond)
-
-					return nil
-				}
-			}(),
-			timeout:           time.Duration(100) * time.Millisecond,
-			expectErr:         true,
-			expectHardTimeout: true,
-		},
-	} {
-		recorder := httptest.NewRecorder()
-		request := httptest.NewRequest(http.MethodGet, "/foo", nil)
-
-		srv := echo.New()
-		srv.HideBanner = true
-		srv.HidePort = true
-
-		c := srv.NewContext(request, recorder)
-		c.Set("logger", zap.NewNop())
-
-		err := hardTimeoutMiddleware(tc.timeout)(tc.next)(c)
-
-		if tc.expectErr && err == nil {
-			t.Errorf("test %d: expected error but got: %v", i, err)
-		}
-
-		if !tc.expectErr && err != nil {
-			t.Errorf("test %d: expected no error but got: %v", i, err)
-		}
-
-		var isHardTimeout bool
-		if err != nil {
-			isHardTimeout = strings.Contains(err.Error(), "hard timeout")
-		}
-
-		if tc.expectHardTimeout && !isHardTimeout {
-			t.Errorf("test %d: expected hard timeout error but got: %v", i, err)
-		}
-
-		if !tc.expectHardTimeout && isHardTimeout {
-			t.Errorf("test %d: expected no hard timeout error but got one: %v", i, err)
-		}
-	}
-}

pkg/modules/api/mocks.go

@@ -83,7 +83,15 @@ func (ctx *ContextMock) SetLogger(logger *zap.Logger) {
 //	ctx := &api.ContextMock{Context: &api.Context{}}
 //	ctx.setEchoContext(c)
 func (ctx *ContextMock) SetEchoContext(c echo.Context) {
-	ctx.Context.echoCtx = c
+	ctx.echoCtx = c
+}
+
+// SetMkdirAll sets the [gotenberg.MkdirAll].
+//
+//	ctx := &api.ContextMock{Context: &api.Context{}}
+//	ctx.SetMkdirAll(mkdirAll)
+func (ctx *ContextMock) SetMkdirAll(mkdirAll gotenberg.MkdirAll) {
+	ctx.mkdirAll = mkdirAll
 }
 
 // SetPathRename sets the [gotenberg.PathRename].
@@ -91,7 +99,7 @@ func (ctx *ContextMock) SetEchoContext(c echo.Context) {
 //	ctx := &api.ContextMock{Context: &api.Context{}}
 //	ctx.setPathRename(rename)
 func (ctx *ContextMock) SetPathRename(rename gotenberg.PathRename) {
-	ctx.Context.pathRename = rename
+	ctx.pathRename = rename
 }
 
 // RouterMock is a mock for the [Router] interface.

pkg/modules/api/mocks_test.go

@@ -1,178 +0,0 @@
-package api
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/alexliesenfeld/health"
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-)
-
-func TestContextMock_SetDirPath(t *testing.T) {
-	mock := &ContextMock{&Context{}}
-	mock.SetDirPath("/foo")
-
-	actual := mock.dirPath
-	expect := "/foo"
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestContextMock_DirPath(t *testing.T) {
-	mock := &ContextMock{&Context{}}
-	mock.SetDirPath("/foo")
-
-	actual := mock.DirPath()
-	expect := "/foo"
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestContextMock_SetValues(t *testing.T) {
-	mock := &ContextMock{&Context{}}
-	mock.SetValues(map[string][]string{
-		"foo": {"foo"},
-	})
-
-	actual := mock.values
-	expect := map[string][]string{
-		"foo": {"foo"},
-	}
-
-	if !reflect.DeepEqual(actual, expect) {
-		t.Errorf("expected %+v but got: %+v", expect, actual)
-	}
-}
-
-func TestContextMock_SetFiles(t *testing.T) {
-	mock := &ContextMock{&Context{}}
-	mock.SetFiles(map[string]string{
-		"foo": "/foo",
-	})
-
-	actual := mock.files
-	expect := map[string]string{
-		"foo": "/foo",
-	}
-
-	if !reflect.DeepEqual(actual, expect) {
-		t.Errorf("expected %+v but got: %+v", expect, actual)
-	}
-}
-
-func TestContextMock_SetCancelled(t *testing.T) {
-	mock := &ContextMock{&Context{}}
-	mock.SetCancelled(true)
-
-	actual := mock.cancelled
-
-	if !actual {
-		t.Errorf("expected %t but got %t", true, actual)
-	}
-}
-
-func TestContextMock_OutputPaths(t *testing.T) {
-	mock := ContextMock{
-		&Context{
-			outputPaths: []string{"/foo"},
-		},
-	}
-
-	actual := mock.OutputPaths()
-	expect := []string{"/foo"}
-
-	if !reflect.DeepEqual(actual, expect) {
-		t.Errorf("expected %+v but got: %+v", expect, actual)
-	}
-}
-
-func TestContextMock_SetLogger(t *testing.T) {
-	mock := ContextMock{&Context{}}
-
-	expect := zap.NewNop()
-	mock.SetLogger(expect)
-
-	actual := mock.logger
-
-	if actual != expect {
-		t.Errorf("expected %v but got %v", expect, actual)
-	}
-}
-
-func TestContextMock_SetEchoContext(t *testing.T) {
-	mock := ContextMock{&Context{}}
-
-	expect := echo.New().NewContext(nil, nil)
-	mock.SetEchoContext(expect)
-
-	actual := mock.echoCtx
-
-	if actual != expect {
-		t.Errorf("expected %v but got %v", expect, actual)
-	}
-}
-
-func TestContextMock_SetPathRename(t *testing.T) {
-	mock := ContextMock{&Context{}}
-
-	expect := new(osPathRename)
-	mock.SetPathRename(expect)
-
-	actual := mock.pathRename
-
-	if actual != expect {
-		t.Errorf("expected %v but got %v", expect, actual)
-	}
-}
-
-func TestRouterMock(t *testing.T) {
-	mock := &RouterMock{
-		RoutesMock: func() ([]Route, error) {
-			return nil, nil
-		},
-	}
-
-	_, err := mock.Routes()
-	if err != nil {
-		t.Errorf("expected no error from RouterMock.Routes, but got: %v", err)
-	}
-}
-
-func TestMiddlewareProviderMock(t *testing.T) {
-	mock := &MiddlewareProviderMock{
-		MiddlewaresMock: func() ([]Middleware, error) {
-			return nil, nil
-		},
-	}
-
-	_, err := mock.Middlewares()
-	if err != nil {
-		t.Errorf("expected no error from MiddlewareProviderMock.Middlewares, but got: %v", err)
-	}
-}
-
-func TestHealthCheckerMock(t *testing.T) {
-	mock := &HealthCheckerMock{
-		ChecksMock: func() ([]health.CheckerOption, error) {
-			return nil, nil
-		},
-		ReadyMock: func() error {
-			return nil
-		},
-	}
-
-	_, err := mock.Checks()
-	if err != nil {
-		t.Errorf("expected no error from HealthCheckerMock.Checks, but got: %v", err)
-	}
-
-	err = mock.Ready()
-	if err != nil {
-		t.Errorf("expected no error from HealthCheckerMock.Ready, but got: %v", err)
-	}
-}

pkg/modules/chromium/browser.go

@@ -15,6 +15,7 @@ import (
 	"github.com/chromedp/cdproto/runtime"
 	"github.com/chromedp/chromedp"
 	"github.com/dlclark/regexp2"
+	"github.com/shirou/gopsutil/v4/process"
 	"go.uber.org/zap"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
@@ -62,7 +63,7 @@ func newChromiumBrowser(arguments browserArguments) browser {
 	b := &chromiumBrowser{
 		initialCtx: context.Background(),
 		arguments:  arguments,
-		fs:         gotenberg.NewFileSystem(),
+		fs:         gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll)),
 	}
 	b.isStarted.Store(false)
 
@@ -162,21 +163,61 @@ func (b *chromiumBrowser) Stop(logger *zap.Logger) error {
 
 	// Always remove the user profile directory created by Chromium.
 	copyUserProfileDirPath := b.userProfileDirPath
-	defer func(userProfileDirPath string) {
+	expirationTime := time.Now()
+	defer func(userProfileDirPath string, expirationTime time.Time) {
+		// See:
+		// https://github.com/SeleniumHQ/docker-selenium/blob/7216d060d86872afe853ccda62db0dfab5118dc7/NodeChrome/chrome-cleanup.sh
+		// https://github.com/SeleniumHQ/docker-selenium/blob/7216d060d86872afe853ccda62db0dfab5118dc7/NodeChromium/chrome-cleanup.sh
+
+		// Clean up stuck processes.
+		ps, err := process.Processes()
+		if err != nil {
+			logger.Error(fmt.Sprintf("list processes: %v", err))
+		} else {
+			for _, p := range ps {
+				func() {
+					cmdline, err := p.Cmdline()
+					if err != nil {
+						return
+					}
+
+					if !strings.Contains(cmdline, "chromium/chromium") && !strings.Contains(cmdline, "chrome/chrome") {
+						return
+					}
+
+					killCtx, cancel := context.WithTimeout(context.Background(), time.Second*5)
+					defer cancel()
+
+					err = p.KillWithContext(killCtx)
+					if err != nil {
+						logger.Error(fmt.Sprintf("kill process: %v", err))
+					} else {
+						logger.Debug(fmt.Sprintf("Chromium process %d killed", p.Pid))
+					}
+				}()
+			}
+		}
+
 		go func() {
 			// FIXME: Chromium seems to recreate the user profile directory
 			//  right after its deletion if we do not wait a certain amount
 			//  of time before deleting it.
 			<-time.After(10 * time.Second)
 
-			err := os.RemoveAll(userProfileDirPath)
+			err = os.RemoveAll(userProfileDirPath)
 			if err != nil {
 				logger.Error(fmt.Sprintf("remove Chromium's user profile directory: %s", err))
+			} else {
+				logger.Debug(fmt.Sprintf("'%s' Chromium's user profile directory removed", userProfileDirPath))
 			}
 
-			logger.Debug(fmt.Sprintf("'%s' Chromium's user profile directory removed", userProfileDirPath))
+			// Also remove Chromium specific files in the temporary directory.
+			err = gotenberg.GarbageCollect(logger, os.TempDir(), []string{".org.chromium.Chromium", ".com.google.Chrome"}, expirationTime)
+			if err != nil {
+				logger.Error(err.Error())
+			}
 		}()
-	}(copyUserProfileDirPath)
+	}(copyUserProfileDirPath, expirationTime)
 
 	b.ctxMu.Lock()
 	defer b.ctxMu.Unlock()
@@ -226,10 +267,11 @@ func (b *chromiumBrowser) pdf(ctx context.Context, logger *zap.Logger, url, outp
 		clearCacheActionFunc(logger, b.arguments.clearCache),
 		clearCookiesActionFunc(logger, b.arguments.clearCookies),
 		disableJavaScriptActionFunc(logger, b.arguments.disableJavaScript),
-		extraHttpHeadersActionFunc(logger, options.ExtraHttpHeaders),
+		setCookiesActionFunc(logger, options.Cookies),
+		userAgentOverride(logger, options.UserAgent),
 		navigateActionFunc(logger, url, options.SkipNetworkIdleEvent),
 		hideDefaultWhiteBackgroundActionFunc(logger, options.OmitBackground, options.PrintBackground),
-		forceExactColorsActionFunc(),
+		forceExactColorsActionFunc(logger, options.PrintBackground),
 		emulateMediaTypeActionFunc(logger, options.EmulatedMediaType),
 		waitDelayBeforePrintActionFunc(logger, b.arguments.disableJavaScript, options.WaitDelay),
 		waitForExpressionBeforePrintActionFunc(logger, b.arguments.disableJavaScript, options.WaitForExpression),
@@ -248,14 +290,16 @@ func (b *chromiumBrowser) screenshot(ctx context.Context, logger *zap.Logger, ur
 		clearCacheActionFunc(logger, b.arguments.clearCache),
 		clearCookiesActionFunc(logger, b.arguments.clearCookies),
 		disableJavaScriptActionFunc(logger, b.arguments.disableJavaScript),
-		extraHttpHeadersActionFunc(logger, options.ExtraHttpHeaders),
+		setCookiesActionFunc(logger, options.Cookies),
+		userAgentOverride(logger, options.UserAgent),
 		navigateActionFunc(logger, url, options.SkipNetworkIdleEvent),
 		hideDefaultWhiteBackgroundActionFunc(logger, options.OmitBackground, true),
-		forceExactColorsActionFunc(),
+		forceExactColorsActionFunc(logger, true),
 		emulateMediaTypeActionFunc(logger, options.EmulatedMediaType),
 		waitDelayBeforePrintActionFunc(logger, b.arguments.disableJavaScript, options.WaitDelay),
 		waitForExpressionBeforePrintActionFunc(logger, b.arguments.disableJavaScript, options.WaitForExpression),
 		// Screenshot specific.
+		setDeviceMetricsOverride(logger, options.Width, options.Height),
 		captureScreenshotActionFunc(logger, outputPath, options),
 	})
 }
@@ -286,17 +330,35 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *zap.Logger, url string
 	defer taskCancel()
 
 	// We validate all others requests against our allow / deny lists.
-	// If a request does not pass the validation, we make it fail.
-	listenForEventRequestPaused(taskCtx, logger, b.arguments.allowList, b.arguments.denyList)
+	// If a request does not pass the validation, we make it fail. It also set
+	// the extra HTTP headers, if any.
+	// See https://github.com/gotenberg/gotenberg/issues/1011.
+	listenForEventRequestPaused(taskCtx, logger, eventRequestPausedOptions{
+		allowList:        b.arguments.allowList,
+		denyList:         b.arguments.denyList,
+		extraHttpHeaders: options.ExtraHttpHeaders,
+	})
 
 	var (
-		invalidHttpStatusCode   error
-		invalidHttpStatusCodeMu sync.RWMutex
+		invalidHttpStatusCode           error
+		invalidHttpStatusCodeMu         sync.RWMutex
+		invalidResourceHttpStatusCode   error
+		invalidResourceHttpStatusCodeMu sync.RWMutex
 	)
 
-	// See https://github.com/gotenberg/gotenberg/issues/613.
-	if len(options.FailOnHttpStatusCodes) != 0 {
-		listenForEventResponseReceived(taskCtx, logger, url, options.FailOnHttpStatusCodes, &invalidHttpStatusCode, &invalidHttpStatusCodeMu)
+	// See:
+	// https://github.com/gotenberg/gotenberg/issues/613.
+	// https://github.com/gotenberg/gotenberg/issues/1021.
+	if len(options.FailOnHttpStatusCodes) != 0 || len(options.FailOnResourceHttpStatusCodes) != 0 {
+		listenForEventResponseReceived(taskCtx, logger, eventResponseReceivedOptions{
+			mainPageUrl:                     url,
+			failOnHttpStatusCodes:           options.FailOnHttpStatusCodes,
+			invalidHttpStatusCode:           &invalidHttpStatusCode,
+			invalidHttpStatusCodeMu:         &invalidHttpStatusCodeMu,
+			failOnResourceOnHttpStatusCode:  options.FailOnResourceHttpStatusCodes,
+			invalidResourceHttpStatusCode:   &invalidResourceHttpStatusCode,
+			invalidResourceHttpStatusCodeMu: &invalidResourceHttpStatusCodeMu,
+		})
 	}
 
 	var (
@@ -309,6 +371,24 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *zap.Logger, url string
 		listenForEventExceptionThrown(taskCtx, logger, &consoleExceptions, &consoleExceptionsMu)
 	}
 
+	var (
+		loadingFailed           error
+		loadingFailedMu         sync.RWMutex
+		resourceLoadingFailed   error
+		resourceLoadingFailedMu sync.RWMutex
+	)
+
+	// See:
+	// https://github.com/gotenberg/gotenberg/issues/913.
+	// https://github.com/gotenberg/gotenberg/issues/959.
+	// https://github.com/gotenberg/gotenberg/issues/1021.
+	listenForEventLoadingFailed(taskCtx, logger, eventLoadingFailedOptions{
+		loadingFailed:           &loadingFailed,
+		loadingFailedMu:         &loadingFailedMu,
+		resourceLoadingFailed:   &resourceLoadingFailed,
+		resourceLoadingFailedMu: &resourceLoadingFailedMu,
+	})
+
 	err = chromedp.Run(taskCtx, tasks...)
 	if err != nil {
 		errMessage := err.Error()
@@ -336,6 +416,14 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *zap.Logger, url string
 		return fmt.Errorf("%v: %w", invalidHttpStatusCode, ErrInvalidHttpStatusCode)
 	}
 
+	// See https://github.com/gotenberg/gotenberg/issues/1021.
+	invalidResourceHttpStatusCodeMu.RLock()
+	defer invalidResourceHttpStatusCodeMu.RUnlock()
+
+	if invalidResourceHttpStatusCode != nil {
+		return fmt.Errorf("%v: %w", invalidResourceHttpStatusCode, ErrInvalidResourceHttpStatusCode)
+	}
+
 	// See https://github.com/gotenberg/gotenberg/issues/262.
 	consoleExceptionsMu.RLock()
 	defer consoleExceptionsMu.RUnlock()
@@ -344,6 +432,23 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *zap.Logger, url string
 		return fmt.Errorf("%v: %w", consoleExceptions, ErrConsoleExceptions)
 	}
 
+	// See:
+	// https://github.com/gotenberg/gotenberg/issues/913.
+	// https://github.com/gotenberg/gotenberg/issues/959.
+	loadingFailedMu.RLock()
+	defer loadingFailedMu.RUnlock()
+
+	if loadingFailed != nil {
+		return fmt.Errorf("%v: %w", loadingFailed, ErrLoadingFailed)
+	}
+
+	// See https://github.com/gotenberg/gotenberg/issues/1021.
+	if options.FailOnResourceLoadingFailed {
+		if resourceLoadingFailed != nil {
+			return fmt.Errorf("%v: %w", resourceLoadingFailed, ErrResourceLoadingFailed)
+		}
+	}
+
 	return nil
 }
 

pkg/modules/chromium/chromium.go

@@ -5,9 +5,14 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
+	"strings"
+	"syscall"
 	"time"
 
 	"github.com/alexliesenfeld/health"
+	"github.com/chromedp/cdproto/network"
+	"github.com/dlclark/regexp2"
 	flag "github.com/spf13/pflag"
 	"go.uber.org/zap"
 
@@ -36,11 +41,22 @@ var (
 	// matches with one of the entry in [Options.FailOnHttpStatusCodes].
 	ErrInvalidHttpStatusCode = errors.New("invalid HTTP status code")
 
+	// ErrInvalidResourceHttpStatusCode happens when the status code from one
+	// or more resources matches with one of the entry in
+	// [Options.FailOnResourceHttpStatusCodes].
+	ErrInvalidResourceHttpStatusCode = errors.New("invalid resource HTTP status code")
+
 	// ErrConsoleExceptions happens when there are exceptions in the Chromium
 	// console. It also happens only if the [Options.FailOnConsoleExceptions]
 	// is set to true.
 	ErrConsoleExceptions = errors.New("console exceptions")
 
+	// ErrLoadingFailed happens when the main page failed to load.
+	ErrLoadingFailed = errors.New("loading failed")
+
+	// ErrResourceLoadingFailed happens when one or more resources failed to load.
+	ErrResourceLoadingFailed = errors.New("resource loading failed")
+
 	// PDF specific.
 
 	// ErrOmitBackgroundWithoutPrintBackground happens if
@@ -75,62 +91,71 @@ type Options struct {
 	// "networkIdle" event, drastically improving the conversion speed. It may
 	// not be suitable for all HTML documents, as some may not be fully
 	// rendered until this event is fired.
-	// Optional.
 	SkipNetworkIdleEvent bool
 
 	// FailOnHttpStatusCodes sets if the conversion should fail if the status
 	// code from the main page matches with one of its entries.
-	// Optional.
 	FailOnHttpStatusCodes []int64
 
+	// FailOnResourceHttpStatusCodes sets if the conversion should fail if the
+	// status code from at least one resource matches with one if its entries.
+	FailOnResourceHttpStatusCodes []int64
+
+	// FailOnResourceLoadingFailed sets if the conversion should fail like the
+	// main page if Chromium fails to load at least one resource.
+	FailOnResourceLoadingFailed bool
+
 	// FailOnConsoleExceptions sets if the conversion should fail if there are
 	// exceptions in the Chromium console.
-	// Optional.
 	FailOnConsoleExceptions bool
 
 	// WaitDelay is the duration to wait when loading an HTML document before
 	// converting it.
-	// Optional.
 	WaitDelay time.Duration
 
 	// WaitWindowStatus is the window.status value to wait for before
 	// converting an HTML document.
-	// Optional.
 	WaitWindowStatus string
 
 	// WaitForExpression is the custom JavaScript expression to wait before
 	// converting an HTML document until it returns true
-	// Optional.
 	WaitForExpression string
 
-	// ExtraHttpHeaders are the HTTP headers to send by Chromium while loading
-	// the HTML document.
-	// Optional.
-	ExtraHttpHeaders map[string]string
+	// Cookies are the cookies to put in the Chromium cookies' jar.
+	Cookies []Cookie
+
+	// UserAgent overrides the default 'User-Agent' HTTP header.
+	UserAgent string
+
+	// ExtraHttpHeaders are extra HTTP headers to send by Chromium while
+	// loading he HTML document.
+	ExtraHttpHeaders []ExtraHttpHeader
 
 	// EmulatedMediaType is the media type to emulate, either "screen" or
 	// "print".
-	// Optional.
 	EmulatedMediaType string
 
 	// OmitBackground hides default white background and allows generating PDFs
 	// with transparency.
-	// Optional.
 	OmitBackground bool
 }
 
 // DefaultOptions returns the default values for Options.
 func DefaultOptions() Options {
 	return Options{
-		SkipNetworkIdleEvent:    false,
-		FailOnHttpStatusCodes:   []int64{499, 599},
-		FailOnConsoleExceptions: false,
-		WaitDelay:               0,
-		WaitWindowStatus:        "",
-		WaitForExpression:       "",
-		ExtraHttpHeaders:        nil,
-		EmulatedMediaType:       "",
-		OmitBackground:          false,
+		SkipNetworkIdleEvent:          true,
+		FailOnHttpStatusCodes:         []int64{499, 599},
+		FailOnResourceHttpStatusCodes: nil,
+		FailOnResourceLoadingFailed:   false,
+		FailOnConsoleExceptions:       false,
+		WaitDelay:                     0,
+		WaitWindowStatus:              "",
+		WaitForExpression:             "",
+		Cookies:                       nil,
+		UserAgent:                     "",
+		ExtraHttpHeaders:              nil,
+		EmulatedMediaType:             "",
+		OmitBackground:                false,
 	}
 }
 
@@ -139,48 +164,37 @@ type PdfOptions struct {
 	Options
 
 	// Landscape sets the paper orientation.
-	// Optional.
 	Landscape bool
 
 	// PrintBackground prints the background graphics.
-	// Optional.
 	PrintBackground bool
 
 	// Scale is the scale of the page rendering.
-	// Optional.
 	Scale float64
 
 	// SinglePage defines whether to print the entire content in one single
 	// page.
-	// Optional.
 	SinglePage bool
 
 	// PaperWidth is the paper width, in inches.
-	// Optional.
 	PaperWidth float64
 
 	// PaperHeight is the paper height, in inches.
-	// Optional.
 	PaperHeight float64
 
 	// MarginTop is the top margin, in inches.
-	// Optional.
 	MarginTop float64
 
 	// MarginBottom is the bottom margin, in inches.
-	// Optional.
 	MarginBottom float64
 
 	// MarginLeft is the left margin, in inches.
-	// Optional.
 	MarginLeft float64
 
 	// MarginRight is the right margin, in inches.
-	// Optional.
 	MarginRight float64
 
 	// Page ranges to print, e.g., '1-5, 8, 11-13'. Empty means all pages.
-	// Optional.
 	PageRanges string
 
 	// HeaderTemplate is the HTML template of the header. It should be valid
@@ -193,38 +207,40 @@ type PdfOptions struct {
 	// - totalPages: total pages in the document
 	// For example, <span class=title></span> would generate span containing
 	// the title.
-	// Optional.
 	HeaderTemplate string
 
 	// FooterTemplate is the HTML template of the footer. It should use the
 	// same format as the HeaderTemplate.
-	// Optional.
 	FooterTemplate string
 
 	// PreferCssPageSize defines whether to prefer page size as defined by CSS.
 	// If false, the content will be scaled to fit the paper size.
-	// Optional.
 	PreferCssPageSize bool
+
+	// GenerateDocumentOutline defines whether the document outline should be
+	// embedded into the PDF.
+	GenerateDocumentOutline bool
 }
 
 // DefaultPdfOptions returns the default values for PdfOptions.
 func DefaultPdfOptions() PdfOptions {
 	return PdfOptions{
-		Options:           DefaultOptions(),
-		Landscape:         false,
-		PrintBackground:   false,
-		Scale:             1.0,
-		SinglePage:        false,
-		PaperWidth:        8.5,
-		PaperHeight:       11,
-		MarginTop:         0.39,
-		MarginBottom:      0.39,
-		MarginLeft:        0.39,
-		MarginRight:       0.39,
-		PageRanges:        "",
-		HeaderTemplate:    "<html><head></head><body></body></html>",
-		FooterTemplate:    "<html><head></head><body></body></html>",
-		PreferCssPageSize: false,
+		Options:                 DefaultOptions(),
+		Landscape:               false,
+		PrintBackground:         false,
+		Scale:                   1.0,
+		SinglePage:              false,
+		PaperWidth:              8.5,
+		PaperHeight:             11,
+		MarginTop:               0.39,
+		MarginBottom:            0.39,
+		MarginLeft:              0.39,
+		MarginRight:             0.39,
+		PageRanges:              "",
+		HeaderTemplate:          "<html><head></head><body></body></html>",
+		FooterTemplate:          "<html><head></head><body></body></html>",
+		PreferCssPageSize:       false,
+		GenerateDocumentOutline: false,
 	}
 }
 
@@ -233,18 +249,25 @@ func DefaultPdfOptions() PdfOptions {
 type ScreenshotOptions struct {
 	Options
 
+	// Width is the device screen width in pixels.
+	Width int
+
+	// Height is the device screen height in pixels.
+	Height int
+
+	// Clip defines whether to clip the screenshot according to the device
+	// dimensions.
+	Clip bool
+
 	// Format is the image compression format, either "png" or "jpeg" or
 	// "webp".
-	// Optional.
 	Format string
 
 	// Quality is the compression quality from range [0..100] (jpeg only).
-	// Optional.
 	Quality int
 
 	// OptimizeForSpeed defines whether to optimize image encoding for speed,
 	// not for resulting size.
-	// Optional.
 	OptimizeForSpeed bool
 }
 
@@ -252,12 +275,63 @@ type ScreenshotOptions struct {
 func DefaultScreenshotOptions() ScreenshotOptions {
 	return ScreenshotOptions{
 		Options:          DefaultOptions(),
+		Width:            800,
+		Height:           600,
+		Clip:             false,
 		Format:           "png",
 		Quality:          100,
 		OptimizeForSpeed: false,
 	}
 }
 
+// Cookie gathers the available entries for setting a cookie in the Chromium
+// cookies' jar.
+type Cookie struct {
+	// Name is the cookie name.
+	// Required.
+	Name string `json:"name"`
+
+	// Value is the cookie value.
+	// Required.
+	Value string `json:"value"`
+
+	// Domain is the cookie domain.
+	// Required.
+	Domain string `json:"domain"`
+
+	// Path is the cookie path.
+	// Optional.
+	Path string `json:"path,omitempty"`
+
+	// Secure sets the cookie secure if true.
+	// Optional.
+	Secure bool `json:"secure,omitempty"`
+
+	// HttpOnly sets the cookie as HTTP-only if true.
+	// Optional.
+	HttpOnly bool `json:"httpOnly,omitempty"`
+
+	// SameSite is cookie 'Same-Site' status.
+	// Optional.
+	SameSite network.CookieSameSite `json:"sameSite,omitempty"`
+}
+
+// ExtraHttpHeader are extra HTTP headers to send by Chromium.
+type ExtraHttpHeader struct {
+	// Name is the header name.
+	// Required.
+	Name string
+
+	// Value is the header value.
+	// Required.
+	Value string
+
+	// Scope is the header scope. If nil, the header will be applied to ALL
+	// requests from the page.
+	// Optional.
+	Scope *regexp2.Regexp
+}
+
 // Api helps to interact with Chromium for converting HTML documents to PDF.
 type Api interface {
 	Pdf(ctx context.Context, logger *zap.Logger, url, outputPath string, options PdfOptions) error
@@ -281,7 +355,7 @@ func (mod *Chromium) Descriptor() gotenberg.ModuleDescriptor {
 		ID: "chromium",
 		FlagSet: func() *flag.FlagSet {
 			fs := flag.NewFlagSet("chromium", flag.ExitOnError)
-			fs.Int64("chromium-restart-after", 0, "Number of conversions after which Chromium will automatically restart. Set to 0 to disable this feature")
+			fs.Int64("chromium-restart-after", 10, "Number of conversions after which Chromium will automatically restart. Set to 0 to disable this feature")
 			fs.Int64("chromium-max-queue-size", 0, "Maximum request queue size for Chromium. Set to 0 to disable this feature")
 			fs.Bool("chromium-auto-start", false, "Automatically launch Chromium upon initialization if set to true; otherwise, Chromium will start at the time of the first conversion")
 			fs.Duration("chromium-start-timeout", time.Duration(20)*time.Second, "Maximum duration to wait for Chromium to start or restart")
@@ -413,6 +487,23 @@ func (mod *Chromium) Stop(ctx context.Context) error {
 	return fmt.Errorf("stop Chromium: %w", err)
 }
 
+// Debug returns additional debug data.
+func (mod *Chromium) Debug() map[string]interface{} {
+	debug := make(map[string]interface{})
+
+	cmd := exec.Command(mod.args.binPath, "--version") //nolint:gosec
+	cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+	output, err := cmd.Output()
+	if err != nil {
+		debug["version"] = err.Error()
+		return debug
+	}
+
+	debug["version"] = strings.TrimSpace(string(output))
+	return debug
+}
+
 // Metrics returns the metrics.
 func (mod *Chromium) Metrics() ([]gotenberg.Metric, error) {
 	return []gotenberg.Metric{
@@ -522,6 +613,7 @@ var (
 	_ gotenberg.Provisioner     = (*Chromium)(nil)
 	_ gotenberg.Validator       = (*Chromium)(nil)
 	_ gotenberg.App             = (*Chromium)(nil)
+	_ gotenberg.Debuggable      = (*Chromium)(nil)
 	_ gotenberg.MetricsProvider = (*Chromium)(nil)
 	_ api.HealthChecker         = (*Chromium)(nil)
 	_ api.Router                = (*Chromium)(nil)

pkg/modules/chromium/chromium_test.go

@@ -1,571 +0,0 @@
-package chromium
-
-import (
-	"context"
-	"errors"
-	"os"
-	"reflect"
-	"testing"
-	"time"
-
-	"github.com/alexliesenfeld/health"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestDefaultOptions(t *testing.T) {
-	actual := DefaultPdfOptions()
-	notExpect := PdfOptions{}
-
-	if reflect.DeepEqual(actual, notExpect) {
-		t.Errorf("expected %v and got identical %v", actual, notExpect)
-	}
-}
-
-func TestChromium_Descriptor(t *testing.T) {
-	descriptor := new(Chromium).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(Chromium))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestChromium_Provision(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *gotenberg.Context
-		expectError bool
-	}{
-		{
-			scenario: "no logger provider",
-			ctx: func() *gotenberg.Context {
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Chromium).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no logger from logger provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LoggerMock = func(mod gotenberg.Module) (*zap.Logger, error) {
-					return nil, errors.New("foo")
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Chromium).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no PDF engine provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LoggerMock = func(mod gotenberg.Module) (*zap.Logger, error) {
-					return zap.NewNop(), nil
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Chromium).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no PDF engine from PDF engine provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-					gotenberg.PdfEngineProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LoggerMock = func(mod gotenberg.Module) (*zap.Logger, error) {
-					return zap.NewNop(), nil
-				}
-				mod.PdfEngineMock = func() (gotenberg.PdfEngine, error) {
-					return nil, errors.New("foo")
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Chromium).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "provision success",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-					gotenberg.PdfEngineProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LoggerMock = func(mod gotenberg.Module) (*zap.Logger, error) {
-					return zap.NewNop(), nil
-				}
-				mod.PdfEngineMock = func() (gotenberg.PdfEngine, error) {
-					return new(gotenberg.PdfEngineMock), nil
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Chromium).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			err := mod.Provision(tc.ctx)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestChromium_Validate(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		binPath     string
-		expectError bool
-	}{
-		{
-			scenario:    "empty bin path",
-			binPath:     "",
-			expectError: true,
-		},
-		{
-			scenario:    "bin path does not exist",
-			binPath:     "/foo",
-			expectError: true,
-		},
-		{
-			scenario:    "validate success",
-			binPath:     os.Getenv("CHROMIUM_BIN_PATH"),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.args = browserArguments{
-				binPath: tc.binPath,
-			}
-			err := mod.Validate()
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestChromium_Start(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		autoStart   bool
-		supervisor  *gotenberg.ProcessSupervisorMock
-		expectError bool
-	}{
-		{
-			scenario:    "no auto-start",
-			autoStart:   false,
-			expectError: false,
-		},
-		{
-			scenario:  "auto-start success",
-			autoStart: true,
-			supervisor: &gotenberg.ProcessSupervisorMock{LaunchMock: func() error {
-				return nil
-			}},
-			expectError: false,
-		},
-		{
-			scenario:  "auto-start failed",
-			autoStart: true,
-			supervisor: &gotenberg.ProcessSupervisorMock{LaunchMock: func() error {
-				return errors.New("foo")
-			}},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.autoStart = tc.autoStart
-			mod.supervisor = tc.supervisor
-
-			err := mod.Start()
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestChromium_StartupMessage(t *testing.T) {
-	mod := new(Chromium)
-
-	mod.autoStart = true
-	autoStartMsg := mod.StartupMessage()
-
-	mod.autoStart = false
-	noAutoStartMsg := mod.StartupMessage()
-
-	if autoStartMsg == noAutoStartMsg {
-		t.Errorf("expected differrent startup messages based on auto start, but got '%s'", autoStartMsg)
-	}
-}
-
-func TestChromium_Stop(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		supervisor  *gotenberg.ProcessSupervisorMock
-		expectError bool
-	}{
-		{
-			scenario: "stop success",
-			supervisor: &gotenberg.ProcessSupervisorMock{ShutdownMock: func() error {
-				return nil
-			}},
-			expectError: false,
-		},
-		{
-			scenario: "stop failed",
-			supervisor: &gotenberg.ProcessSupervisorMock{ShutdownMock: func() error {
-				return errors.New("foo")
-			}},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.logger = zap.NewNop()
-			mod.supervisor = tc.supervisor
-
-			ctx, cancel := context.WithTimeout(context.Background(), 0*time.Second)
-			cancel()
-
-			err := mod.Stop(ctx)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestChromium_Metrics(t *testing.T) {
-	mod := new(Chromium)
-	mod.supervisor = &gotenberg.ProcessSupervisorMock{
-		ReqQueueSizeMock: func() int64 {
-			return 10
-		},
-		RestartsCountMock: func() int64 {
-			return 0
-		},
-	}
-
-	metrics, err := mod.Metrics()
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-
-	if len(metrics) != 2 {
-		t.Fatalf("expected %d metrics, but got %d", 2, len(metrics))
-	}
-
-	actual := metrics[0].Read()
-	if actual != float64(10) {
-		t.Errorf("expected %f for chromium_requests_queue_size, but got %f", float64(10), actual)
-	}
-
-	actual = metrics[1].Read()
-	if actual != float64(0) {
-		t.Errorf("expected %f for chromium_restarts_count, but got %f", float64(0), actual)
-	}
-}
-
-func TestChromium_Checks(t *testing.T) {
-	for _, tc := range []struct {
-		scenario                 string
-		supervisor               gotenberg.ProcessSupervisor
-		expectAvailabilityStatus health.AvailabilityStatus
-	}{
-		{
-			scenario: "healthy module",
-			supervisor: &gotenberg.ProcessSupervisorMock{HealthyMock: func() bool {
-				return true
-			}},
-			expectAvailabilityStatus: health.StatusUp,
-		},
-		{
-			scenario: "unhealthy module",
-			supervisor: &gotenberg.ProcessSupervisorMock{HealthyMock: func() bool {
-				return false
-			}},
-			expectAvailabilityStatus: health.StatusDown,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.supervisor = tc.supervisor
-
-			checks, err := mod.Checks()
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			checker := health.NewChecker(checks...)
-			result := checker.Check(context.Background())
-
-			if result.Status != tc.expectAvailabilityStatus {
-				t.Errorf("expected '%s' as availability status, but got '%s'", tc.expectAvailabilityStatus, result.Status)
-			}
-		})
-	}
-}
-
-func TestChromium_Ready(t *testing.T) {
-	for _, tc := range []struct {
-		scenario     string
-		autoStart    bool
-		startTimeout time.Duration
-		browser      browser
-		expectError  bool
-	}{
-		{
-			scenario:     "no auto-start",
-			autoStart:    false,
-			startTimeout: time.Duration(30) * time.Second,
-			browser: &browserMock{ProcessMock: gotenberg.ProcessMock{HealthyMock: func(logger *zap.Logger) bool {
-				return false
-			}}},
-			expectError: false,
-		},
-		{
-			scenario:     "auto-start: context done",
-			autoStart:    true,
-			startTimeout: time.Duration(200) * time.Millisecond,
-			browser: &browserMock{ProcessMock: gotenberg.ProcessMock{HealthyMock: func(logger *zap.Logger) bool {
-				return false
-			}}},
-			expectError: true,
-		},
-		{
-			scenario:     "auto-start success",
-			autoStart:    true,
-			startTimeout: time.Duration(30) * time.Second,
-			browser: &browserMock{ProcessMock: gotenberg.ProcessMock{HealthyMock: func(logger *zap.Logger) bool {
-				return true
-			}}},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.autoStart = tc.autoStart
-			mod.args = browserArguments{wsUrlReadTimeout: tc.startTimeout}
-			mod.browser = tc.browser
-
-			err := mod.Ready()
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestChromium_Chromium(t *testing.T) {
-	mod := new(Chromium)
-
-	_, err := mod.Chromium()
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestChromium_Routes(t *testing.T) {
-	for _, tc := range []struct {
-		scenario      string
-		expectRoutes  int
-		disableRoutes bool
-	}{
-		{
-			scenario:      "routes not disabled",
-			expectRoutes:  6,
-			disableRoutes: false,
-		},
-		{
-			scenario:      "routes disabled",
-			expectRoutes:  0,
-			disableRoutes: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.disableRoutes = tc.disableRoutes
-
-			routes, err := mod.Routes()
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectRoutes != len(routes) {
-				t.Errorf("expected %d routes but got %d", tc.expectRoutes, len(routes))
-			}
-		})
-	}
-}
-
-func TestChromium_Pdf(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		supervisor  gotenberg.ProcessSupervisor
-		browser     browser
-		expectError bool
-	}{
-		{
-			scenario: "PDF task success",
-			browser: &browserMock{pdfMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options PdfOptions) error {
-				return nil
-			}},
-			expectError: false,
-		},
-		{
-			scenario: "PDF task error",
-			browser: &browserMock{pdfMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options PdfOptions) error {
-				return errors.New("PDF task error")
-			}},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.supervisor = &gotenberg.ProcessSupervisorMock{RunMock: func(ctx context.Context, logger *zap.Logger, task func() error) error {
-				return task()
-			}}
-			mod.browser = tc.browser
-
-			err := mod.Pdf(context.Background(), zap.NewNop(), "", "", PdfOptions{})
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestChromium_Screenshot(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		supervisor  gotenberg.ProcessSupervisor
-		browser     browser
-		expectError bool
-	}{
-		{
-			scenario: "Screenshot task success",
-			browser: &browserMock{screenshotMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options ScreenshotOptions) error {
-				return nil
-			}},
-			expectError: false,
-		},
-		{
-			scenario: "Screenshot task error",
-			browser: &browserMock{screenshotMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options ScreenshotOptions) error {
-				return errors.New("screenshot task error")
-			}},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Chromium)
-			mod.supervisor = &gotenberg.ProcessSupervisorMock{RunMock: func(ctx context.Context, logger *zap.Logger, task func() error) error {
-				return task()
-			}}
-			mod.browser = tc.browser
-
-			err := mod.Screenshot(context.Background(), zap.NewNop(), "", "", ScreenshotOptions{})
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}

pkg/modules/chromium/debug_test.go

@@ -1,24 +0,0 @@
-package chromium
-
-import (
-	"testing"
-
-	"go.uber.org/zap"
-)
-
-func TestDebugLogger_Write(t *testing.T) {
-	actual, err := (&debugLogger{logger: zap.NewNop()}).Write([]byte("foo"))
-	expected := len([]byte("foo"))
-
-	if actual != expected {
-		t.Errorf("expected %d but got %d", expected, actual)
-	}
-
-	if err != nil {
-		t.Errorf("expected not error but got: %v", err)
-	}
-}
-
-func TestDebugLogger_Printf(t *testing.T) {
-	(&debugLogger{logger: zap.NewNop()}).Printf("%s", "foo")
-}

pkg/modules/chromium/events.go

@@ -3,6 +3,7 @@ package chromium
 import (
 	"context"
 	"fmt"
+	"net/http"
 	"slices"
 	"sync"
 
@@ -20,9 +21,22 @@ import (
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 )
 
+type eventRequestPausedOptions struct {
+	allowList, denyList *regexp2.Regexp
+	extraHttpHeaders    []ExtraHttpHeader
+}
+
 // listenForEventRequestPaused listens for requests to check if they are
-// allowed or not.
-func listenForEventRequestPaused(ctx context.Context, logger *zap.Logger, allowList *regexp2.Regexp, denyList *regexp2.Regexp) {
+// allowed or not.  It also set the extra HTTP headers, if any.
+// See https://github.com/gotenberg/gotenberg/issues/1011.
+// TODO: https://chromedevtools.github.io/devtools-protocol/tot/Network/#method-setBlockedURLs (experimental for now).
+func listenForEventRequestPaused(ctx context.Context, logger *zap.Logger, options eventRequestPausedOptions) {
+	if len(options.extraHttpHeaders) == 0 {
+		logger.Debug("no extra HTTP headers")
+	} else {
+		logger.Debug(fmt.Sprintf("extra HTTP headers: %+v", options.extraHttpHeaders))
+	}
+
 	chromedp.ListenTarget(ctx, func(ev interface{}) {
 		switch e := ev.(type) {
 		case *fetch.EventRequestPaused:
@@ -36,7 +50,7 @@ func listenForEventRequestPaused(ctx context.Context, logger *zap.Logger, allowL
 					return
 				}
 
-				err := gotenberg.FilterDeadline(allowList, denyList, e.Request.URL, deadline)
+				err := gotenberg.FilterDeadline(options.allowList, options.denyList, e.Request.URL, deadline)
 				if err != nil {
 					logger.Warn(err.Error())
 					allow = false
@@ -45,33 +59,114 @@ func listenForEventRequestPaused(ctx context.Context, logger *zap.Logger, allowL
 				cctx := chromedp.FromContext(ctx)
 				executorCtx := cdp.WithExecutor(ctx, cctx.Target)
 
-				if allow {
-					req := fetch.ContinueRequest(e.RequestID)
+				if !allow {
+					req := fetch.FailRequest(e.RequestID, network.ErrorReasonAccessDenied)
 					err = req.Do(executorCtx)
 					if err != nil {
-						logger.Error(fmt.Sprintf("continue request: %s", err))
+						logger.Error(fmt.Sprintf("fail request: %s", err))
 					}
 					return
 				}
 
-				req := fetch.FailRequest(e.RequestID, network.ErrorReasonAccessDenied)
+				req := fetch.ContinueRequest(e.RequestID)
+
+				var extraHttpHeadersToSet []ExtraHttpHeader
+				if len(options.extraHttpHeaders) > 0 {
+					// The user want to set extra HTTP headers.
+
+					// First, we have to check if at least one header has to be
+					// set for current request.
+					for _, header := range options.extraHttpHeaders {
+						if header.Scope == nil {
+							// Non-scoped header.
+							logger.Debug(fmt.Sprintf("extra HTTP header '%s' will be set for request URL '%s'", header.Name, e.Request.URL))
+							extraHttpHeadersToSet = append(extraHttpHeadersToSet, header)
+							continue
+						}
+
+						ok, err := header.Scope.MatchString(e.Request.URL)
+						if err != nil {
+							logger.Error(fmt.Sprintf("fail to match extra HTTP header '%s' scope with URL '%s': %s", header.Name, e.Request.URL, err))
+						} else if ok {
+							logger.Debug(fmt.Sprintf("extra HTTP header '%s' (scoped) will be set for request URL '%s'", header.Name, e.Request.URL))
+							extraHttpHeadersToSet = append(extraHttpHeadersToSet, header)
+						} else {
+							logger.Debug(fmt.Sprintf("scoped extra HTTP header '%s' (scoped) will not be set for request URL '%s'", header.Name, e.Request.URL))
+						}
+					}
+				}
+
+				if len(extraHttpHeadersToSet) > 0 {
+					logger.Debug(fmt.Sprintf("setting extra HTTP headers for request URL '%s': %+v", e.Request.URL, extraHttpHeadersToSet))
+
+					originalHeaders := e.Request.Headers
+					headers := make(map[string]string)
+
+					for key, value := range originalHeaders {
+						strValue, ok := value.(string)
+						if ok {
+							headers[key] = strValue
+						} else {
+							logger.Error(fmt.Sprintf("ignoring header '%s' for URL '%s' since it cannot be cast to a string", key, e.Request.URL))
+						}
+					}
+
+					var headersEntries []*fetch.HeaderEntry
+					for key, value := range headers {
+						headersEntries = append(headersEntries, &fetch.HeaderEntry{
+							Name:  key,
+							Value: value,
+						})
+					}
+					for _, header := range extraHttpHeadersToSet {
+						headersEntries = append(headersEntries, &fetch.HeaderEntry{
+							Name:  header.Name,
+							Value: header.Value,
+						})
+					}
+
+					req.Headers = headersEntries
+				}
+
 				err = req.Do(executorCtx)
 				if err != nil {
-					logger.Error(fmt.Sprintf("fail request: %s", err))
+					logger.Error(fmt.Sprintf("continue request: %s", err))
 				}
 			}()
 		}
 	})
 }
 
-// listenForEventResponseReceived listens for an invalid HTTP status code is
-// returned by the main page.
-// See https://github.com/gotenberg/gotenberg/issues/613.
-func listenForEventResponseReceived(ctx context.Context, logger *zap.Logger, url string, failOnHttpStatusCodes []int64, invalidHttpStatusCode *error, invalidHttpStatusCodeMu *sync.RWMutex) {
+type eventResponseReceivedOptions struct {
+	mainPageUrl                     string
+	failOnHttpStatusCodes           []int64
+	invalidHttpStatusCode           *error
+	invalidHttpStatusCodeMu         *sync.RWMutex
+	failOnResourceOnHttpStatusCode  []int64
+	invalidResourceHttpStatusCode   *error
+	invalidResourceHttpStatusCodeMu *sync.RWMutex
+}
+
+// listenForEventResponseReceived listens for an invalid HTTP status code that
+// is returned by the main page or by one or more resources.
+// See:
+// https://github.com/gotenberg/gotenberg/issues/613.
+// https://github.com/gotenberg/gotenberg/issues/1021.
+func listenForEventResponseReceived(
+	ctx context.Context,
+	logger *zap.Logger,
+	options eventResponseReceivedOptions,
+) {
 	for _, code := range []int64{199, 299, 399, 499, 599} {
-		if slices.Contains(failOnHttpStatusCodes, code) {
+		if slices.Contains(options.failOnHttpStatusCodes, code) {
 			for i := code - 99; i <= code; i++ {
-				failOnHttpStatusCodes = append(failOnHttpStatusCodes, i)
+				options.failOnHttpStatusCodes = append(options.failOnHttpStatusCodes, i)
+			}
+		}
+
+		if slices.Contains(options.failOnResourceOnHttpStatusCode, code) {
+			for i := code - 99; i <= code; i++ {
+				options.failOnResourceOnHttpStatusCode = append(options.failOnResourceOnHttpStatusCode, i)
 			}
 		}
 	}
@@ -79,22 +174,99 @@ func listenForEventResponseReceived(ctx context.Context, logger *zap.Logger, url
 	chromedp.ListenTarget(ctx, func(ev interface{}) {
 		switch ev := ev.(type) {
 		case *network.EventResponseReceived:
-			if ev.Response.URL != url {
+			if ev.Response.URL == options.mainPageUrl {
+				logger.Debug(fmt.Sprintf("event EventResponseReceived fired for main page: %+v", ev.Response))
+
+				if slices.Contains(options.failOnHttpStatusCodes, ev.Response.Status) {
+					options.invalidHttpStatusCodeMu.Lock()
+					defer options.invalidHttpStatusCodeMu.Unlock()
+
+					*options.invalidHttpStatusCode = fmt.Errorf("%d: %s", ev.Response.Status, ev.Response.StatusText)
+				}
+
 				return
 			}
 
-			logger.Debug(fmt.Sprintf("event EventResponseReceived fired for main page: %+v", ev.Response))
+			logger.Debug(fmt.Sprintf("event EventResponseReceived fired for a resource: %+v", ev.Response))
 
-			if slices.Contains(failOnHttpStatusCodes, ev.Response.Status) {
-				invalidHttpStatusCodeMu.Lock()
-				defer invalidHttpStatusCodeMu.Unlock()
+			if slices.Contains(options.failOnResourceOnHttpStatusCode, ev.Response.Status) {
+				options.invalidResourceHttpStatusCodeMu.Lock()
+				defer options.invalidResourceHttpStatusCodeMu.Unlock()
 
-				*invalidHttpStatusCode = fmt.Errorf("%d: %s", ev.Response.Status, ev.Response.StatusText)
+				*options.invalidResourceHttpStatusCode = multierr.Append(
+					*options.invalidResourceHttpStatusCode,
+					fmt.Errorf("%s - %d: %s", ev.Response.URL, ev.Response.Status, http.StatusText(int(ev.Response.Status))),
+				)
 			}
 		}
 	})
 }
 
+type eventLoadingFailedOptions struct {
+	loadingFailed           *error
+	loadingFailedMu         *sync.RWMutex
+	resourceLoadingFailed   *error
+	resourceLoadingFailedMu *sync.RWMutex
+}
+
+// listenForEventLoadingFailed listens for an event indicating that the main
+// page or one or more resources failed to load.
+// See:
+// https://github.com/gotenberg/gotenberg/issues/913.
+// https://github.com/gotenberg/gotenberg/issues/959.
+// https://github.com/gotenberg/gotenberg/issues/1021.
+func listenForEventLoadingFailed(ctx context.Context, logger *zap.Logger, options eventLoadingFailedOptions) {
+	chromedp.ListenTarget(ctx, func(ev interface{}) {
+		switch ev := ev.(type) {
+		case *network.EventLoadingFailed:
+			logger.Debug(fmt.Sprintf("event EventLoadingFailed fired: %+v", ev.ErrorText))
+
+			// We are looking for common errors.
+			// TODO: sufficient?
+			errors := []string{
+				"net::ERR_CONNECTION_CLOSED",
+				"net::ERR_CONNECTION_RESET",
+				"net::ERR_CONNECTION_REFUSED",
+				"net::ERR_CONNECTION_ABORTED",
+				"net::ERR_CONNECTION_FAILED",
+				"net::ERR_NAME_NOT_RESOLVED",
+				"net::ERR_INTERNET_DISCONNECTED",
+				"net::ERR_ADDRESS_UNREACHABLE",
+				"net::ERR_BLOCKED_BY_CLIENT",
+				"net::ERR_BLOCKED_BY_RESPONSE",
+				"net::ERR_FILE_NOT_FOUND",
+			}
+			if !slices.Contains(errors, ev.ErrorText) {
+				logger.Debug(fmt.Sprintf("skip EventLoadingFailed: '%s' is not part of %+v", ev.ErrorText, errors))
+				return
+			}
+
+			if ev.Type == network.ResourceTypeDocument {
+				// Supposition: except iframe, an event loading failed with a
+				// resource type Document is about the main page.
+				logger.Debug("event EventLoadingFailed fired for main page")
+
+				options.loadingFailedMu.Lock()
+				defer options.loadingFailedMu.Unlock()
+
+				*options.loadingFailed = fmt.Errorf("%s", ev.ErrorText)
+
+				return
+			}
+
+			logger.Debug("event EventLoadingFailed fired for a resource")
+
+			options.resourceLoadingFailedMu.Lock()
+			defer options.resourceLoadingFailedMu.Unlock()
+
+			*options.resourceLoadingFailed = multierr.Append(
+				*options.resourceLoadingFailed,
+				fmt.Errorf("resource %s: %s", ev.Type, ev.ErrorText),
+			)
+		}
+	})
+}
+
 // listenForEventExceptionThrown listens for exceptions in the console and
 // appends those exceptions to the given error pointer.
 // See https://github.com/gotenberg/gotenberg/issues/262.

pkg/modules/chromium/mocks_test.go

@@ -1,50 +0,0 @@
-package chromium
-
-import (
-	"context"
-	"testing"
-
-	"go.uber.org/zap"
-)
-
-func TestApiMock(t *testing.T) {
-	mock := &ApiMock{
-		PdfMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options PdfOptions) error {
-			return nil
-		},
-		ScreenshotMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options ScreenshotOptions) error {
-			return nil
-		},
-	}
-
-	err := mock.Pdf(context.Background(), zap.NewNop(), "", "", PdfOptions{})
-	if err != nil {
-		t.Errorf("expected no error from ApiMock.Pdf, but got: %v", err)
-	}
-
-	err = mock.Screenshot(context.Background(), zap.NewNop(), "", "", ScreenshotOptions{})
-	if err != nil {
-		t.Errorf("expected no error from ApiMock.Screenshot, but got: %v", err)
-	}
-}
-
-func TestBrowserMock(t *testing.T) {
-	mock := &browserMock{
-		pdfMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options PdfOptions) error {
-			return nil
-		},
-		screenshotMock: func(ctx context.Context, logger *zap.Logger, url, outputPath string, options ScreenshotOptions) error {
-			return nil
-		},
-	}
-
-	err := mock.pdf(context.Background(), zap.NewNop(), "", "", PdfOptions{})
-	if err != nil {
-		t.Errorf("expected no error from browserMock.pdf, but got: %v", err)
-	}
-
-	err = mock.screenshot(context.Background(), zap.NewNop(), "", "", ScreenshotOptions{})
-	if err != nil {
-		t.Errorf("expected no error from browserMock.screenshot, but got: %v", err)
-	}
-}

pkg/modules/chromium/routes.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/dlclark/regexp2"
 	"github.com/labstack/echo/v4"
 	"github.com/microcosm-cc/bluemonday"
 	"github.com/russross/blackfriday/v2"
@@ -20,6 +21,7 @@ import (
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 	"github.com/gotenberg/gotenberg/v8/pkg/modules/api"
+	"github.com/gotenberg/gotenberg/v8/pkg/modules/pdfengines"
 )
 
 // FormDataChromiumOptions creates [Options] from the form data. Fallback to
@@ -28,15 +30,19 @@ func FormDataChromiumOptions(ctx *api.Context) (*api.FormData, Options) {
 	defaultOptions := DefaultOptions()
 
 	var (
-		skipNetworkIdleEvent    bool
-		failOnHttpStatusCodes   []int64
-		failOnConsoleExceptions bool
-		waitDelay               time.Duration
-		waitWindowStatus        string
-		waitForExpression       string
-		extraHttpHeaders        map[string]string
-		emulatedMediaType       string
-		omitBackground          bool
+		skipNetworkIdleEvent          bool
+		failOnHttpStatusCodes         []int64
+		failOnResourceHttpStatusCodes []int64
+		failOnResourceLoadingFailed   bool
+		failOnConsoleExceptions       bool
+		waitDelay                     time.Duration
+		waitWindowStatus              string
+		waitForExpression             string
+		cookies                       []Cookie
+		userAgent                     string
+		extraHttpHeaders              []ExtraHttpHeader
+		emulatedMediaType             string
+		omitBackground                bool
 	)
 
 	form := ctx.FormData().
@@ -54,22 +60,103 @@ func FormDataChromiumOptions(ctx *api.Context) (*api.FormData, Options) {
 
 			return nil
 		}).
+		Custom("failOnResourceHttpStatusCodes", func(value string) error {
+			if value == "" {
+				failOnResourceHttpStatusCodes = defaultOptions.FailOnResourceHttpStatusCodes
+				return nil
+			}
+
+			err := json.Unmarshal([]byte(value), &failOnResourceHttpStatusCodes)
+			if err != nil {
+				return fmt.Errorf("unmarshal failOnResourceHttpStatusCodes: %w", err)
+			}
+
+			return nil
+		}).
+		Bool("failOnResourceLoadingFailed", &failOnResourceLoadingFailed, defaultOptions.FailOnResourceLoadingFailed).
 		Bool("failOnConsoleExceptions", &failOnConsoleExceptions, defaultOptions.FailOnConsoleExceptions).
 		Duration("waitDelay", &waitDelay, defaultOptions.WaitDelay).
 		String("waitWindowStatus", &waitWindowStatus, defaultOptions.WaitWindowStatus).
 		String("waitForExpression", &waitForExpression, defaultOptions.WaitForExpression).
+		Custom("cookies", func(value string) error {
+			if value == "" {
+				cookies = defaultOptions.Cookies
+				return nil
+			}
+
+			err := json.Unmarshal([]byte(value), &cookies)
+			if err != nil {
+				return fmt.Errorf("unmarshal cookies: %w", err)
+			}
+
+			for i, cookie := range cookies {
+				if strings.TrimSpace(cookie.Name) == "" || strings.TrimSpace(cookie.Value) == "" || strings.TrimSpace(cookie.Domain) == "" {
+					err = multierr.Append(err, fmt.Errorf("cookie %d must have its name, value and domain set", i))
+				}
+			}
+
+			return err
+		}).
+		String("userAgent", &userAgent, defaultOptions.UserAgent).
 		Custom("extraHttpHeaders", func(value string) error {
 			if value == "" {
 				extraHttpHeaders = defaultOptions.ExtraHttpHeaders
 				return nil
 			}
 
-			err := json.Unmarshal([]byte(value), &extraHttpHeaders)
+			var headers map[string]string
+			err := json.Unmarshal([]byte(value), &headers)
 			if err != nil {
 				return fmt.Errorf("unmarshal extraHttpHeaders: %w", err)
 			}
 
-			return nil
+			for k, v := range headers {
+				var scope string
+				var valueTokens []string
+				var invalidScopeToken bool
+
+				tokens := strings.Split(v, ";")
+				for _, token := range tokens {
+					if strings.HasPrefix(strings.ToLower(strings.TrimSpace(token)), "scope") {
+						tokenNoSpaces := strings.Join(strings.Fields(token), "")
+						parts := strings.SplitN(tokenNoSpaces, "=", 2)
+
+						if len(parts) == 2 && strings.ToLower(parts[0]) == "scope" && parts[1] != "" {
+							scope = parts[1]
+						} else {
+							err = multierr.Append(err, fmt.Errorf("invalid scope '%s' for header '%s'", scope, k))
+							invalidScopeToken = true
+							break
+						}
+					} else {
+						if token != "" {
+							valueTokens = append(valueTokens, token)
+						}
+					}
+				}
+
+				if invalidScopeToken {
+					continue
+				}
+
+				var scopeRegexp *regexp2.Regexp
+				if len(scope) > 0 {
+					p, errCompile := regexp2.Compile(scope, 0)
+					if errCompile != nil {
+						err = multierr.Append(err, fmt.Errorf("invalid scope regex pattern for header '%s': %w", k, errCompile))
+						continue
+					}
+					scopeRegexp = p
+				}
+
+				extraHttpHeaders = append(extraHttpHeaders, ExtraHttpHeader{
+					Name:  k,
+					Value: strings.Join(valueTokens, "; "),
+					Scope: scopeRegexp,
+				})
+			}
+
+			return err
 		}).
 		Custom("emulatedMediaType", func(value string) error {
 			if value == "" {
@@ -88,15 +175,19 @@ func FormDataChromiumOptions(ctx *api.Context) (*api.FormData, Options) {
 		Bool("omitBackground", &omitBackground, defaultOptions.OmitBackground)
 
 	options := Options{
-		SkipNetworkIdleEvent:    skipNetworkIdleEvent,
-		FailOnHttpStatusCodes:   failOnHttpStatusCodes,
-		FailOnConsoleExceptions: failOnConsoleExceptions,
-		WaitDelay:               waitDelay,
-		WaitWindowStatus:        waitWindowStatus,
-		WaitForExpression:       waitForExpression,
-		ExtraHttpHeaders:        extraHttpHeaders,
-		EmulatedMediaType:       emulatedMediaType,
-		OmitBackground:          omitBackground,
+		SkipNetworkIdleEvent:          skipNetworkIdleEvent,
+		FailOnHttpStatusCodes:         failOnHttpStatusCodes,
+		FailOnResourceHttpStatusCodes: failOnResourceHttpStatusCodes,
+		FailOnResourceLoadingFailed:   failOnResourceLoadingFailed,
+		FailOnConsoleExceptions:       failOnConsoleExceptions,
+		WaitDelay:                     waitDelay,
+		WaitWindowStatus:              waitWindowStatus,
+		WaitForExpression:             waitForExpression,
+		Cookies:                       cookies,
+		UserAgent:                     userAgent,
+		ExtraHttpHeaders:              extraHttpHeaders,
+		EmulatedMediaType:             emulatedMediaType,
+		OmitBackground:                omitBackground,
 	}
 
 	return form, options
@@ -115,6 +206,7 @@ func FormDataChromiumPdfOptions(ctx *api.Context) (*api.FormData, PdfOptions) {
 		pageRanges                                       string
 		headerTemplate, footerTemplate                   string
 		preferCssPageSize                                bool
+		generateDocumentOutline                          bool
 	)
 
 	form.
@@ -131,24 +223,26 @@ func FormDataChromiumPdfOptions(ctx *api.Context) (*api.FormData, PdfOptions) {
 		String("nativePageRanges", &pageRanges, defaultPdfOptions.PageRanges).
 		Content("header.html", &headerTemplate, defaultPdfOptions.HeaderTemplate).
 		Content("footer.html", &footerTemplate, defaultPdfOptions.FooterTemplate).
-		Bool("preferCssPageSize", &preferCssPageSize, defaultPdfOptions.PreferCssPageSize)
+		Bool("preferCssPageSize", &preferCssPageSize, defaultPdfOptions.PreferCssPageSize).
+		Bool("generateDocumentOutline", &generateDocumentOutline, defaultPdfOptions.GenerateDocumentOutline)
 
 	pdfOptions := PdfOptions{
-		Options:           options,
-		Landscape:         landscape,
-		PrintBackground:   printBackground,
-		Scale:             scale,
-		SinglePage:        singlePage,
-		PaperWidth:        paperWidth,
-		PaperHeight:       paperHeight,
-		MarginTop:         marginTop,
-		MarginBottom:      marginBottom,
-		MarginLeft:        marginLeft,
-		MarginRight:       marginRight,
-		PageRanges:        pageRanges,
-		HeaderTemplate:    headerTemplate,
-		FooterTemplate:    footerTemplate,
-		PreferCssPageSize: preferCssPageSize,
+		Options:                 options,
+		Landscape:               landscape,
+		PrintBackground:         printBackground,
+		Scale:                   scale,
+		SinglePage:              singlePage,
+		PaperWidth:              paperWidth,
+		PaperHeight:             paperHeight,
+		MarginTop:               marginTop,
+		MarginBottom:            marginBottom,
+		MarginLeft:              marginLeft,
+		MarginRight:             marginRight,
+		PageRanges:              pageRanges,
+		HeaderTemplate:          headerTemplate,
+		FooterTemplate:          footerTemplate,
+		PreferCssPageSize:       preferCssPageSize,
+		GenerateDocumentOutline: generateDocumentOutline,
 	}
 
 	return form, pdfOptions
@@ -161,12 +255,17 @@ func FormDataChromiumScreenshotOptions(ctx *api.Context) (*api.FormData, Screens
 	defaultScreenshotOptions := DefaultScreenshotOptions()
 
 	var (
+		width, height    int
+		clip             bool
 		format           string
 		quality          int
 		optimizeForSpeed bool
 	)
 
 	form.
+		Int("width", &width, defaultScreenshotOptions.Width).
+		Int("height", &height, defaultScreenshotOptions.Height).
+		Bool("clip", &clip, defaultScreenshotOptions.Clip).
 		Custom("format", func(value string) error {
 			if value == "" {
 				format = defaultScreenshotOptions.Format
@@ -207,6 +306,9 @@ func FormDataChromiumScreenshotOptions(ctx *api.Context) (*api.FormData, Screens
 
 	screenshotOptions := ScreenshotOptions{
 		Options:          options,
+		Width:            width,
+		Height:           height,
+		Clip:             clip,
 		Format:           format,
 		Quality:          quality,
 		OptimizeForSpeed: optimizeForSpeed,
@@ -215,39 +317,6 @@ func FormDataChromiumScreenshotOptions(ctx *api.Context) (*api.FormData, Screens
 	return form, screenshotOptions
 }
 
-// FormDataChromiumPdfFormats creates [gotenberg.PdfFormats] from the form
-// data. Fallback to default value if the considered key is not present.
-func FormDataChromiumPdfFormats(form *api.FormData) gotenberg.PdfFormats {
-	var (
-		pdfa  string
-		pdfua bool
-	)
-
-	form.
-		String("pdfa", &pdfa, "").
-		Bool("pdfua", &pdfua, false)
-
-	return gotenberg.PdfFormats{
-		PdfA:  pdfa,
-		PdfUa: pdfua,
-	}
-}
-
-// FormDataPdfMetadata creates metadata object from the form data.
-func FormDataPdfMetadata(form *api.FormData) map[string]interface{} {
-	var metadata map[string]interface{}
-	form.Custom("metadata", func(value string) error {
-		if len(value) > 0 {
-			err := json.Unmarshal([]byte(value), &metadata)
-			if err != nil {
-				return fmt.Errorf("unmarshal metadata: %w", err)
-			}
-		}
-		return nil
-	})
-	return metadata
-}
-
 // convertUrlRoute returns an [api.Route] which can convert a URL to PDF.
 func convertUrlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 	return api.Route{
@@ -257,8 +326,9 @@ func convertUrlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 		Handler: func(c echo.Context) error {
 			ctx := c.Get("context").(*api.Context)
 			form, options := FormDataChromiumPdfOptions(ctx)
-			pdfFormats := FormDataChromiumPdfFormats(form)
-			metadata := FormDataPdfMetadata(form)
+			mode := pdfengines.FormDataPdfSplitMode(form, false)
+			pdfFormats := pdfengines.FormDataPdfFormats(form)
+			metadata := pdfengines.FormDataPdfMetadata(form, false)
 
 			var url string
 			err := form.
@@ -268,7 +338,7 @@ func convertUrlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 				return fmt.Errorf("validate form data: %w", err)
 			}
 
-			err = convertUrl(ctx, chromium, engine, url, options, pdfFormats, metadata)
+			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata)
 			if err != nil {
 				return fmt.Errorf("convert URL to PDF: %w", err)
 			}
@@ -317,8 +387,9 @@ func convertHtmlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 		Handler: func(c echo.Context) error {
 			ctx := c.Get("context").(*api.Context)
 			form, options := FormDataChromiumPdfOptions(ctx)
-			pdfFormats := FormDataChromiumPdfFormats(form)
-			metadata := FormDataPdfMetadata(form)
+			mode := pdfengines.FormDataPdfSplitMode(form, false)
+			pdfFormats := pdfengines.FormDataPdfFormats(form)
+			metadata := pdfengines.FormDataPdfMetadata(form, false)
 
 			var inputPath string
 			err := form.
@@ -329,7 +400,7 @@ func convertHtmlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 			}
 
 			url := fmt.Sprintf("file://%s", inputPath)
-			err = convertUrl(ctx, chromium, engine, url, options, pdfFormats, metadata)
+			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata)
 			if err != nil {
 				return fmt.Errorf("convert HTML to PDF: %w", err)
 			}
@@ -379,8 +450,9 @@ func convertMarkdownRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 		Handler: func(c echo.Context) error {
 			ctx := c.Get("context").(*api.Context)
 			form, options := FormDataChromiumPdfOptions(ctx)
-			pdfFormats := FormDataChromiumPdfFormats(form)
-			metadata := FormDataPdfMetadata(form)
+			mode := pdfengines.FormDataPdfSplitMode(form, false)
+			pdfFormats := pdfengines.FormDataPdfFormats(form)
+			metadata := pdfengines.FormDataPdfMetadata(form, false)
 
 			var (
 				inputPath     string
@@ -400,7 +472,7 @@ func convertMarkdownRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 				return fmt.Errorf("transform markdown file(s) to HTML: %w", err)
 			}
 
-			err = convertUrl(ctx, chromium, engine, url, options, pdfFormats, metadata)
+			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata)
 			if err != nil {
 				return fmt.Errorf("convert markdown to PDF: %w", err)
 			}
@@ -524,7 +596,7 @@ func markdownToHtml(ctx *api.Context, inputPath string, markdownPaths []string)
 	return fmt.Sprintf("file://%s", inputPath), nil
 }
 
-func convertUrl(ctx *api.Context, chromium Api, engine gotenberg.PdfEngine, url string, options PdfOptions, pdfFormats gotenberg.PdfFormats, metadata map[string]interface{}) error {
+func convertUrl(ctx *api.Context, chromium Api, engine gotenberg.PdfEngine, url string, options PdfOptions, mode gotenberg.SplitMode, pdfFormats gotenberg.PdfFormats, metadata map[string]interface{}) error {
 	outputPath := ctx.GeneratePath(".pdf")
 
 	err := chromium.Pdf(ctx, ctx.Log(), url, outputPath, options)
@@ -563,34 +635,39 @@ func convertUrl(ctx *api.Context, chromium Api, engine gotenberg.PdfEngine, url
 		return fmt.Errorf("convert to PDF: %w", err)
 	}
 
-	// So far so good, the URL has been converted to PDF.
-	// Now, let's check if the client want to convert the resulting PDF
-	// to specific formats.
-	zeroValued := gotenberg.PdfFormats{}
-	if pdfFormats != zeroValued {
-		convertInputPath := outputPath
-		convertOutputPath := ctx.GeneratePath(".pdf")
-
-		err = engine.Convert(ctx, ctx.Log(), pdfFormats, convertInputPath, convertOutputPath)
-		if err != nil {
-			return fmt.Errorf("convert PDF: %w", err)
-		}
-
-		// Important: the output path is now the converted file.
-		outputPath = convertOutputPath
-	}
-
-	// Writes and potentially overrides metadata entries, if any.
-	if len(metadata) > 0 {
-		err = engine.WriteMetadata(ctx, ctx.Log(), metadata, outputPath)
-		if err != nil {
-			return fmt.Errorf("write metadata: %w", err)
-		}
-	}
-
-	err = ctx.AddOutputPaths(outputPath)
+	outputPaths, err := pdfengines.SplitPdfStub(ctx, engine, mode, []string{outputPath})
 	if err != nil {
-		return fmt.Errorf("add output path: %w", err)
+		return fmt.Errorf("split PDF: %w", err)
+	}
+
+	convertOutputPaths, err := pdfengines.ConvertStub(ctx, engine, pdfFormats, outputPaths)
+	if err != nil {
+		return fmt.Errorf("convert PDF(s): %w", err)
+	}
+
+	err = pdfengines.WriteMetadataStub(ctx, engine, metadata, convertOutputPaths)
+	if err != nil {
+		return fmt.Errorf("write metadata: %w", err)
+	}
+
+	zeroValuedSplitMode := gotenberg.SplitMode{}
+	zeroValuedPdfFormats := gotenberg.PdfFormats{}
+	if mode != zeroValuedSplitMode && pdfFormats != zeroValuedPdfFormats {
+		// The PDF has been split and split parts have been converted to a
+		// specific format. We want to keep the split naming.
+		for i, convertOutputPath := range convertOutputPaths {
+			err = ctx.Rename(convertOutputPath, outputPaths[i])
+			if err != nil {
+				return fmt.Errorf("rename output path: %w", err)
+			}
+		}
+	} else {
+		outputPaths = convertOutputPaths
+	}
+
+	err = ctx.AddOutputPaths(outputPaths...)
+	if err != nil {
+		return fmt.Errorf("add output paths: %w", err)
 	}
 
 	return nil
@@ -646,12 +723,42 @@ func handleChromiumError(err error, options Options) error {
 		)
 	}
 
+	if errors.Is(err, ErrInvalidResourceHttpStatusCode) {
+		return api.WrapError(
+			err,
+			api.NewSentinelHttpError(
+				http.StatusConflict,
+				fmt.Sprintf("Invalid HTTP status code from resources:\n%s", strings.ReplaceAll(err.Error(), fmt.Sprintf(": %s", ErrInvalidResourceHttpStatusCode.Error()), "")),
+			),
+		)
+	}
+
 	if errors.Is(err, ErrConsoleExceptions) {
 		return api.WrapError(
 			err,
 			api.NewSentinelHttpError(
 				http.StatusConflict,
-				fmt.Sprintf("Chromium console exceptions:\n %s", strings.ReplaceAll(err.Error(), ErrConsoleExceptions.Error(), "")),
+				fmt.Sprintf("Chromium console exceptions:\n%s", strings.ReplaceAll(err.Error(), ErrConsoleExceptions.Error(), "")),
+			),
+		)
+	}
+
+	if errors.Is(err, ErrLoadingFailed) {
+		return api.WrapError(
+			err,
+			api.NewSentinelHttpError(
+				http.StatusBadRequest,
+				fmt.Sprintf("Chromium returned %v", err),
+			),
+		)
+	}
+
+	if errors.Is(err, ErrResourceLoadingFailed) {
+		return api.WrapError(
+			err,
+			api.NewSentinelHttpError(
+				http.StatusConflict,
+				fmt.Sprintf("Chromium failed to load resources: %v", strings.ReplaceAll(err.Error(), fmt.Sprintf(": %s", ErrResourceLoadingFailed.Error()), "")),
 			),
 		)
 	}

pkg/modules/chromium/tasks.go

@@ -3,6 +3,7 @@ package chromium
 import (
 	"bufio"
 	"context"
+	"errors"
 	"fmt"
 	"os"
 	"time"
@@ -47,8 +48,7 @@ func printToPdfActionFunc(logger *zap.Logger, outputPath string, options PdfOpti
 			WithMarginRight(options.MarginRight).
 			WithPageRanges(pageRanges).
 			WithPreferCSSPageSize(options.PreferCssPageSize).
-			// Does not seem to work.
-			// See https://github.com/gotenberg/gotenberg/issues/831.
+			WithGenerateDocumentOutline(options.GenerateDocumentOutline).
 			WithGenerateTaggedPDF(false)
 
 		hasCustomHeaderFooter := options.HeaderTemplate != DefaultPdfOptions().HeaderTemplate ||
@@ -120,6 +120,14 @@ func captureScreenshotActionFunc(logger *zap.Logger, outputPath string, options
 			WithOptimizeForSpeed(options.OptimizeForSpeed).
 			WithFormat(page.CaptureScreenshotFormat(options.Format))
 
+		if options.Clip {
+			captureScreenshot = captureScreenshot.WithClip(&page.Viewport{
+				Width:  float64(options.Width),
+				Height: float64(options.Height),
+				Scale:  1,
+			})
+		}
+
 		if options.Format == "jpeg" {
 			captureScreenshot = captureScreenshot.
 				WithQuality(int64(options.Quality))
@@ -153,6 +161,19 @@ func captureScreenshotActionFunc(logger *zap.Logger, outputPath string, options
 	}
 }
 
+func setDeviceMetricsOverride(logger *zap.Logger, width, height int) chromedp.ActionFunc {
+	return func(ctx context.Context) error {
+		logger.Debug("set device metrics override")
+
+		err := emulation.SetDeviceMetricsOverride(int64(width), int64(height), 1.0, false).Do(ctx)
+		if err == nil {
+			return nil
+		}
+
+		return fmt.Errorf("set device metrics override: %w", err)
+	}
+}
+
 func clearCacheActionFunc(logger *zap.Logger, clear bool) chromedp.ActionFunc {
 	return func(ctx context.Context) error {
 		// See https://github.com/gotenberg/gotenberg/issues/753.
@@ -210,29 +231,100 @@ func disableJavaScriptActionFunc(logger *zap.Logger, disable bool) chromedp.Acti
 	}
 }
 
-func extraHttpHeadersActionFunc(logger *zap.Logger, extraHttpHeaders map[string]string) chromedp.ActionFunc {
+func setCookiesActionFunc(logger *zap.Logger, cookies []Cookie) chromedp.ActionFunc {
 	return func(ctx context.Context) error {
-		if len(extraHttpHeaders) == 0 {
-			logger.Debug("no extra HTTP headers")
+		if len(cookies) == 0 {
+			logger.Debug("no cookies to set")
 			return nil
 		}
 
-		logger.Debug(fmt.Sprintf("extra HTTP headers: %+v", extraHttpHeaders))
+		deadline, ok := ctx.Deadline()
+		if !ok {
+			return errors.New("context has no deadline, cannot set cookies")
+		}
+		epochTime := cdp.TimeSinceEpoch(deadline)
 
-		headers := make(network.Headers, len(extraHttpHeaders))
-		for key, value := range extraHttpHeaders {
-			headers[key] = value
+		cookiePretty := func(c *network.SetCookieParams) string {
+			return fmt.Sprintf(
+				"Name: '%s', Value: '%s', Domain: '%s', Path: '%s', Secure: %t, HTTPOnly: %t, SameSite: '%s', Expires: %s",
+				c.Name,
+				c.Value,
+				c.Domain,
+				c.Path,
+				c.Secure,
+				c.HTTPOnly,
+				c.SameSite.String(),
+				c.Expires.Time().String(),
+			)
 		}
 
-		err := network.SetExtraHTTPHeaders(headers).Do(ctx)
+		for _, cookie := range cookies {
+			cookieParams := network.
+				SetCookie(cookie.Name, cookie.Value).
+				WithDomain(cookie.Domain).
+				WithPath(cookie.Path).
+				WithSecure(cookie.Secure).
+				WithHTTPOnly(cookie.HttpOnly).
+				WithSameSite(cookie.SameSite).
+				WithExpires(&epochTime)
+
+			err := cookieParams.Do(ctx)
+			if err != nil {
+				return fmt.Errorf("set cookie %s: %w", cookiePretty(cookieParams), err)
+			}
+
+			logger.Debug(fmt.Sprintf("set cookie %s", cookiePretty(cookieParams)))
+		}
+
+		return nil
+	}
+}
+
+func userAgentOverride(logger *zap.Logger, userAgent string) chromedp.ActionFunc {
+	return func(ctx context.Context) error {
+		if len(userAgent) == 0 {
+			logger.Debug("no user agent override")
+			return nil
+		}
+
+		logger.Debug(fmt.Sprintf("user agent override: %s", userAgent))
+		err := emulation.SetUserAgentOverride(userAgent).Do(ctx)
 		if err == nil {
 			return nil
 		}
 
-		return fmt.Errorf("set extra HTTP headers: %w", err)
+		return fmt.Errorf("set user agent override: %w", err)
 	}
 }
 
+// This code has been replaced with the listenForEventRequestPaused function.
+// Indeed, the user may want to scope the headers per domain, but using
+// network.SetExtraHTTPHeaders set the headers for ALL requests from the page.
+// See https://github.com/gotenberg/gotenberg/issues/1011.
+//
+//func extraHttpHeadersActionFunc(logger *zap.Logger, extraHttpHeaders map[string]string) chromedp.ActionFunc {
+//	return func(ctx context.Context) error {
+//		if len(extraHttpHeaders) == 0 {
+//			logger.Debug("no extra HTTP headers")
+//			return nil
+//		}
+//
+//		logger.Debug(fmt.Sprintf("extra HTTP headers: %+v", extraHttpHeaders))
+//
+//		headers := make(network.Headers, len(extraHttpHeaders))
+//		for key, value := range extraHttpHeaders {
+//			headers[key] = value
+//		}
+//
+//		err := network.SetExtraHTTPHeaders(headers).Do(ctx)
+//		if err == nil {
+//			return nil
+//		}
+//
+//		return fmt.Errorf("set extra HTTP headers: %w", err)
+//	}
+//}
+
 func navigateActionFunc(logger *zap.Logger, url string, skipNetworkIdleEvent bool) chromedp.ActionFunc {
 	return func(ctx context.Context) error {
 		logger.Debug(fmt.Sprintf("navigate to '%s'", url))
@@ -298,26 +390,30 @@ func hideDefaultWhiteBackgroundActionFunc(logger *zap.Logger, omitBackground, pr
 	}
 }
 
-func forceExactColorsActionFunc() chromedp.ActionFunc {
+func forceExactColorsActionFunc(logger *zap.Logger, printBackground bool) chromedp.ActionFunc {
 	return func(ctx context.Context) error {
-		// See:
-		// https://github.com/gotenberg/gotenberg/issues/354
-		// https://github.com/puppeteer/puppeteer/issues/2685
-		// https://github.com/chromedp/chromedp/issues/520
-		script := `
-(() => {
-	const css = 'html { -webkit-print-color-adjust: exact !important; }';
+		css := "html { -webkit-print-color-adjust: exact !important; }"
+		if !printBackground {
+			// The -webkit-print-color-adjust: exact CSS property forces the
+			// print of the background, whatever the printToPDF args.
+			// See https://github.com/gotenberg/gotenberg/issues/1154.
+			additionalCss := "html, body { background: none !important; }"
+			logger.Debug(fmt.Sprintf("inject %s as printBackground is %t", additionalCss, printBackground))
+			css += additionalCss
+		}
 
+		script := fmt.Sprintf(`
+(() => {
+	const css = '%s';
 	const style = document.createElement('style');
 	style.type = 'text/css';
 	style.appendChild(document.createTextNode(css));
 	document.head.appendChild(style);
 })();
-`
+`, css)
 
 		evaluate := chromedp.Evaluate(script, nil)
 		err := evaluate.Do(ctx)
-
 		if err == nil {
 			return nil
 		}

pkg/modules/exiftool/exiftool.go

@@ -5,6 +5,10 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
+	"reflect"
+	"strings"
+	"syscall"
 
 	"github.com/barasher/go-exiftool"
 	"go.uber.org/zap"
@@ -52,11 +56,38 @@ func (engine *ExifTool) Validate() error {
 	return nil
 }
 
+// Debug returns additional debug data.
+func (engine *ExifTool) Debug() map[string]interface{} {
+	debug := make(map[string]interface{})
+
+	cmd := exec.Command(engine.binPath, "-ver") //nolint:gosec
+	cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+	output, err := cmd.Output()
+	if err != nil {
+		debug["version"] = err.Error()
+		return debug
+	}
+
+	debug["version"] = strings.TrimSpace(string(output))
+	return debug
+}
+
 // Merge is not available in this implementation.
 func (engine *ExifTool) Merge(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
 	return fmt.Errorf("merge PDFs with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
+// Split is not available in this implementation.
+func (engine *ExifTool) Split(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+	return nil, fmt.Errorf("split PDF with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
+// Flatten is not available in this implementation.
+func (engine *ExifTool) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
+	return fmt.Errorf("flatten PDF with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
 // Convert is not available in this implementation.
 func (engine *ExifTool) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
 	return fmt.Errorf("convert PDF to '%+v' with ExifTool: %w", formats, gotenberg.ErrPdfEngineMethodNotSupported)
@@ -109,6 +140,17 @@ func (engine *ExifTool) WriteMetadata(ctx context.Context, logger *zap.Logger, m
 			fileMetadata[0].SetString(key, val)
 		case []string:
 			fileMetadata[0].SetStrings(key, val)
+		case []interface{}:
+			// See https://github.com/gotenberg/gotenberg/issues/1048.
+			strings := make([]string, len(val))
+			for i, entry := range val {
+				if str, ok := entry.(string); ok {
+					strings[i] = str
+					continue
+				}
+				return fmt.Errorf("write PDF metadata with ExifTool: %s %+v %s %w", key, val, reflect.TypeOf(val), gotenberg.ErrPdfEngineMetadataValueNotSupported)
+			}
+			fileMetadata[0].SetStrings(key, strings)
 		case bool:
 			fileMetadata[0].SetString(key, fmt.Sprintf("%t", val))
 		case int:
@@ -122,7 +164,7 @@ func (engine *ExifTool) WriteMetadata(ctx context.Context, logger *zap.Logger, m
 		// TODO: support more complex cases, e.g., arrays and nested objects
 		// 	(limitations in underlying library).
 		default:
-			return fmt.Errorf("write PDF metadata with ExifTool: %w", gotenberg.ErrPdfEngineMetadataValueNotSupported)
+			return fmt.Errorf("write PDF metadata with ExifTool: %s %+v %s %w", key, val, reflect.TypeOf(val), gotenberg.ErrPdfEngineMetadataValueNotSupported)
 		}
 	}
 
@@ -139,5 +181,6 @@ var (
 	_ gotenberg.Module      = (*ExifTool)(nil)
 	_ gotenberg.Provisioner = (*ExifTool)(nil)
 	_ gotenberg.Validator   = (*ExifTool)(nil)
+	_ gotenberg.Debuggable  = (*ExifTool)(nil)
 	_ gotenberg.PdfEngine   = (*ExifTool)(nil)
 )

pkg/modules/exiftool/exiftool_test.go

@@ -1,322 +0,0 @@
-package exiftool
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"reflect"
-	"testing"
-
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestExifTool_Descriptor(t *testing.T) {
-	descriptor := new(ExifTool).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(ExifTool))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestExifTool_Provision(t *testing.T) {
-	engine := new(ExifTool)
-	ctx := gotenberg.NewContext(gotenberg.ParsedFlags{}, nil)
-
-	err := engine.Provision(ctx)
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestExifTool_Validate(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		binPath     string
-		expectError bool
-	}{
-		{
-			scenario:    "empty bin path",
-			binPath:     "",
-			expectError: true,
-		},
-		{
-			scenario:    "bin path does not exist",
-			binPath:     "/foo",
-			expectError: true,
-		},
-		{
-			scenario:    "validate success",
-			binPath:     os.Getenv("EXIFTOOL_BIN_PATH"),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(ExifTool)
-			engine.binPath = tc.binPath
-			err := engine.Validate()
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestExiftool_Merge(t *testing.T) {
-	engine := new(ExifTool)
-	err := engine.Merge(context.Background(), zap.NewNop(), nil, "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}
-
-func TestExiftool_Convert(t *testing.T) {
-	engine := new(ExifTool)
-	err := engine.Convert(context.Background(), zap.NewNop(), gotenberg.PdfFormats{}, "", "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}
-
-func TestExiftool_ReadMetadata(t *testing.T) {
-	for _, tc := range []struct {
-		scenario       string
-		inputPath      string
-		expectMetadata map[string]interface{}
-		expectError    bool
-	}{
-		{
-			scenario:       "invalid input path",
-			inputPath:      "foo",
-			expectMetadata: nil,
-			expectError:    true,
-		},
-		{
-			scenario:  "success",
-			inputPath: "/tests/test/testdata/pdfengines/sample1.pdf",
-			expectMetadata: map[string]interface{}{
-				"FileName":          "sample1.pdf",
-				"FileTypeExtension": "pdf",
-				"MIMEType":          "application/pdf",
-				"PDFVersion":        1.4,
-				"PageCount":         float64(3),
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(ExifTool)
-			err := engine.Provision(nil)
-			if err != nil {
-				t.Fatalf("expected error but got: %v", err)
-			}
-
-			metadata, err := engine.ReadMetadata(context.Background(), zap.NewNop(), tc.inputPath)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if tc.expectMetadata != nil && err == nil {
-				for k, v := range tc.expectMetadata {
-					if v2, ok := metadata[k]; !ok || v != v2 {
-						t.Errorf("expected entry %s with value %v to exists", k, v)
-					}
-				}
-			}
-		})
-	}
-}
-
-func TestExiftool_WriteMetadata(t *testing.T) {
-	for _, tc := range []struct {
-		scenario       string
-		createCopy     bool
-		inputPath      string
-		metadata       map[string]interface{}
-		expectMetadata map[string]interface{}
-		expectError    bool
-		expectedError  error
-	}{
-		{
-			scenario:    "invalid input path",
-			createCopy:  false,
-			inputPath:   "foo",
-			expectError: true,
-		},
-		{
-			scenario:   "gotenberg.ErrPdfEngineMetadataValueNotSupported",
-			createCopy: true,
-			inputPath:  "/tests/test/testdata/pdfengines/sample1.pdf",
-			metadata: map[string]interface{}{
-				"Unsupported": map[string]interface{}{},
-			},
-			expectError:   true,
-			expectedError: gotenberg.ErrPdfEngineMetadataValueNotSupported,
-		},
-		{
-			scenario:   "success",
-			createCopy: true,
-			inputPath:  "/tests/test/testdata/pdfengines/sample1.pdf",
-			metadata: map[string]interface{}{
-				"Author":       "Julien Neuhart",
-				"Copyright":    "Julien Neuhart",
-				"CreationDate": "2006-09-18T16:27:50-04:00",
-				"Creator":      "Gotenberg",
-				"Keywords": []string{
-					"first",
-					"second",
-				},
-				"Marked":     true,
-				"ModDate":    "2006-09-18T16:27:50-04:00",
-				"PDFVersion": 1.7,
-				"Producer":   "Gotenberg",
-				"Subject":    "Sample",
-				"Title":      "Sample",
-				"Trapped":    "Unknown",
-				// Those are not valid PDF metadata.
-				"int":     1,
-				"int64":   int64(2),
-				"float32": float32(2.2),
-				"float64": 3.3,
-			},
-			expectMetadata: map[string]interface{}{
-				"Author":       "Julien Neuhart",
-				"Copyright":    "Julien Neuhart",
-				"CreationDate": "2006:09:18 16:27:50-04:00",
-				"Creator":      "Gotenberg",
-				"Keywords": []interface{}{
-					"first",
-					"second",
-				},
-				"Marked":     true,
-				"ModDate":    "2006:09:18 16:27:50-04:00",
-				"PDFVersion": 1.7,
-				"Producer":   "Gotenberg",
-				"Subject":    "Sample",
-				"Title":      "Sample",
-				"Trapped":    "Unknown",
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(ExifTool)
-			err := engine.Provision(nil)
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			var destinationPath string
-			if tc.createCopy {
-				fs := gotenberg.NewFileSystem()
-				outputDir, err := fs.MkdirAll()
-				if err != nil {
-					t.Fatalf("expected error no but got: %v", err)
-				}
-
-				defer func() {
-					err = os.RemoveAll(fs.WorkingDirPath())
-					if err != nil {
-						t.Fatalf("expected no error while cleaning up but got: %v", err)
-					}
-				}()
-
-				destinationPath = fmt.Sprintf("%s/copy_temp.pdf", outputDir)
-				source, err := os.Open(tc.inputPath)
-				if err != nil {
-					t.Fatalf("open source file: %v", err)
-				}
-
-				defer func(source *os.File) {
-					err := source.Close()
-					if err != nil {
-						t.Fatalf("close file: %v", err)
-					}
-				}(source)
-
-				destination, err := os.Create(destinationPath)
-				if err != nil {
-					t.Fatalf("create destination file: %v", err)
-				}
-
-				defer func(destination *os.File) {
-					err := destination.Close()
-					if err != nil {
-						t.Fatalf("close file: %v", err)
-					}
-				}(destination)
-
-				_, err = io.Copy(destination, source)
-				if err != nil {
-					t.Fatalf("copy source into destination: %v", err)
-				}
-			} else {
-				destinationPath = tc.inputPath
-			}
-
-			err = engine.WriteMetadata(context.Background(), zap.NewNop(), tc.metadata, destinationPath)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if tc.expectedError != nil && !errors.Is(err, tc.expectedError) {
-				t.Fatalf("expected error %v but got: %v", tc.expectedError, err)
-			}
-
-			if tc.expectError {
-				return
-			}
-
-			metadata, err := engine.ReadMetadata(context.Background(), zap.NewNop(), destinationPath)
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectMetadata != nil && err == nil {
-				for k, v := range tc.expectMetadata {
-					v2, ok := metadata[k]
-					if !ok {
-						t.Errorf("expected entry %s with value %v to exists, but got none", k, v)
-						continue
-					}
-
-					switch v2.(type) {
-					case []interface{}:
-						for i, entry := range v.([]interface{}) {
-							if entry != v2.([]interface{})[i] {
-								t.Errorf("expected entry %s to contain value %v, but got %v", k, entry, v2.([]interface{})[i])
-							}
-						}
-					default:
-						if v != v2 {
-							t.Errorf("expected entry %s with value %v to exists, but got %v", k, v, v2)
-						}
-					}
-				}
-			}
-		})
-	}
-}

pkg/modules/libreoffice/api/api.go

@@ -5,6 +5,9 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
+	"strings"
+	"syscall"
 	"time"
 
 	"github.com/alexliesenfeld/health"
@@ -25,9 +28,16 @@ var (
 	// by LibreOffice.
 	ErrInvalidPdfFormats = errors.New("invalid PDF formats")
 
-	// ErrMalformedPageRanges happens if the page ranges option cannot be
-	// interpreted by LibreOffice.
-	ErrMalformedPageRanges = errors.New("page ranges are malformed")
+	// ErrUnoException happens when unoconverter returns an exit code 5.
+	ErrUnoException = errors.New("uno exception")
+
+	// ErrRuntimeException happens when unoconverter returns an exit code 6.
+	ErrRuntimeException = errors.New("uno exception")
+
+	// ErrCoreDumped happens randomly; sometime a conversion will work as
+	// expected, and some other time the same conversion will fail.
+	// See https://github.com/gotenberg/gotenberg/issues/639.
+	ErrCoreDumped = errors.New("core dumped")
 )
 
 // Api is a module which provides a [Uno] to interact with LibreOffice.
@@ -41,25 +51,139 @@ type Api struct {
 }
 
 // Options gathers available options when converting a document to PDF.
+// See: https://help.libreoffice.org/latest/en-US/text/shared/guide/pdf_params.html.
 type Options struct {
+	// Password specifies the password for opening the source file.
+	Password string
+
 	// Landscape allows to change the orientation of the resulting PDF.
-	// Optional.
 	Landscape bool
 
 	// PageRanges allows to select the pages to convert.
-	// Optional.
 	PageRanges string
 
-	// ExportFormFields allows to... export form fields in the resulting PDF.
-	// Optional.
+	// UpdateIndexes specifies whether to update the indexes before conversion,
+	// keeping in mind that doing so might result in missing links in the final
+	// PDF.
+	UpdateIndexes bool
+
+	// ExportFormFields specifies whether form fields are exported as widgets
+	// or only their fixed print representation is exported.
 	ExportFormFields bool
 
+	// AllowDuplicateFieldNames specifies whether multiple form fields exported
+	// are allowed to have the same field name.
+	AllowDuplicateFieldNames bool
+
+	// ExportBookmarks specifies if bookmarks are exported to PDF.
+	ExportBookmarks bool
+
+	// ExportBookmarksToPdfDestination specifies that the bookmarks contained
+	// in the source LibreOffice file should be exported to the PDF file as
+	// Named Destination.
+	ExportBookmarksToPdfDestination bool
+
+	// ExportPlaceholders exports the placeholders fields visual markings only.
+	// The exported placeholder is ineffective.
+	ExportPlaceholders bool
+
+	// ExportNotes specifies if notes are exported to PDF.
+	ExportNotes bool
+
+	// ExportNotesPages specifies if notes pages are exported to PDF.
+	// Notes pages are available in Impress documents only.
+	ExportNotesPages bool
+
+	// ExportOnlyNotesPages specifies, if the property ExportNotesPages is set
+	// to true, if only notes pages are exported to PDF.
+	ExportOnlyNotesPages bool
+
+	// ExportNotesInMargin specifies if notes in margin are exported to PDF.
+	ExportNotesInMargin bool
+
+	// ConvertOooTargetToPdfTarget specifies that the target documents with
+	// .od[tpgs] extension, will have that extension changed to .pdf when the
+	// link is exported to PDF. The source document remains untouched.
+	ConvertOooTargetToPdfTarget bool
+
+	// ExportLinksRelativeFsys specifies that the file system related
+	// hyperlinks (file:// protocol) present in the document will be exported
+	// as relative to the source document location.
+	ExportLinksRelativeFsys bool
+
+	// ExportHiddenSlides exports, for LibreOffice Impress, slides that are not
+	// included in slide shows.
+	ExportHiddenSlides bool
+
+	// SkipEmptyPages specifies that automatically inserted empty pages are
+	// suppressed. This option is active only if storing Writer documents.
+	SkipEmptyPages bool
+
+	// AddOriginalDocumentAsStream specifies that a stream is inserted to the
+	// PDF file which contains the original document for archiving purposes.
+	AddOriginalDocumentAsStream bool
+
+	// SinglePageSheets ignores each sheet’s paper size, print ranges and
+	// shown/hidden status and puts every sheet (even hidden sheets) on exactly
+	// one page.
+	SinglePageSheets bool
+
+	// LosslessImageCompression specifies if images are exported to PDF using
+	// a lossless compression format like PNG or compressed using the JPEG
+	// format.
+	LosslessImageCompression bool
+
+	// Quality specifies the quality of the JPG export. A higher value produces
+	// a higher-quality image and a larger file. Between 1 and 100.
+	Quality int
+
+	// ReduceImageResolution specifies if the resolution of each image is
+	// reduced to the resolution specified by the property MaxImageResolution.
+	ReduceImageResolution bool
+
+	// MaxImageResolution, if the property ReduceImageResolution is set to
+	// true, tells if all images will be reduced to the given value in DPI.
+	// Possible values are: 75, 150, 300, 600 and 1200.
+	MaxImageResolution int
+
 	// PdfFormats allows to convert the resulting PDF to PDF/A-1b, PDF/A-2b,
 	// PDF/A-3b and PDF/UA.
-	// Optional.
 	PdfFormats gotenberg.PdfFormats
 }
 
+// DefaultOptions returns the default values for Options.
+func DefaultOptions() Options {
+	return Options{
+		Password:                        "",
+		Landscape:                       false,
+		PageRanges:                      "",
+		UpdateIndexes:                   true,
+		ExportFormFields:                true,
+		AllowDuplicateFieldNames:        false,
+		ExportBookmarks:                 true,
+		ExportBookmarksToPdfDestination: false,
+		ExportPlaceholders:              false,
+		ExportNotes:                     false,
+		ExportNotesPages:                false,
+		ExportOnlyNotesPages:            false,
+		ExportNotesInMargin:             false,
+		ConvertOooTargetToPdfTarget:     false,
+		ExportLinksRelativeFsys:         false,
+		ExportHiddenSlides:              false,
+		SkipEmptyPages:                  false,
+		AddOriginalDocumentAsStream:     false,
+		SinglePageSheets:                false,
+		LosslessImageCompression:        false,
+		Quality:                         90,
+		ReduceImageResolution:           false,
+		MaxImageResolution:              300,
+		PdfFormats: gotenberg.PdfFormats{
+			PdfA:  "",
+			PdfUa: false,
+		},
+	}
+}
+
 // Uno is an abstraction on top of the Universal Network Objects API.
 type Uno interface {
 	Pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error
@@ -190,6 +314,23 @@ func (a *Api) Stop(ctx context.Context) error {
 	return fmt.Errorf("stop LibreOffice: %w", err)
 }
 
+// Debug returns additional debug data.
+func (a *Api) Debug() map[string]interface{} {
+	debug := make(map[string]interface{})
+
+	cmd := exec.Command(a.args.binPath, "--version") //nolint:gosec
+	cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+	output, err := cmd.Output()
+	if err != nil {
+		debug["version"] = err.Error()
+		return debug
+	}
+
+	debug["version"] = strings.TrimSpace(string(output))
+	return debug
+}
+
 // Metrics returns the metrics.
 func (a *Api) Metrics() ([]gotenberg.Metric, error) {
 	return []gotenberg.Metric{
@@ -261,9 +402,21 @@ func (a *Api) LibreOffice() (Uno, error) {
 
 // Pdf converts a document to PDF.
 func (a *Api) Pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error {
-	return a.supervisor.Run(ctx, logger, func() error {
+	err := a.supervisor.Run(ctx, logger, func() error {
 		return a.libreOffice.pdf(ctx, logger, inputPath, outputPath, options)
 	})
+
+	if err == nil {
+		return nil
+	}
+
+	// See https://github.com/gotenberg/gotenberg/issues/639.
+	if errors.Is(err, ErrCoreDumped) {
+		logger.Debug(fmt.Sprintf("got a '%s' error, retry conversion", err))
+		return a.Pdf(ctx, logger, inputPath, outputPath, options)
+	}
+
+	return fmt.Errorf("supervisor run task: %w", err)
 }
 
 // Extensions returns the file extensions available for conversions.
@@ -409,6 +562,7 @@ var (
 	_ gotenberg.Provisioner     = (*Api)(nil)
 	_ gotenberg.Validator       = (*Api)(nil)
 	_ gotenberg.App             = (*Api)(nil)
+	_ gotenberg.Debuggable      = (*Api)(nil)
 	_ gotenberg.MetricsProvider = (*Api)(nil)
 	_ api.HealthChecker         = (*Api)(nil)
 	_ Uno                       = (*Api)(nil)

pkg/modules/libreoffice/api/api_test.go

@@ -1,458 +0,0 @@
-package api
-
-import (
-	"context"
-	"errors"
-	"os"
-	"reflect"
-	"testing"
-	"time"
-
-	"github.com/alexliesenfeld/health"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestApi_Descriptor(t *testing.T) {
-	descriptor := new(Api).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(Api))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestApi_Provision(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *gotenberg.Context
-		expectError bool
-	}{
-		{
-			scenario: "no logger provider",
-			ctx: func() *gotenberg.Context {
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no logger from logger provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LoggerMock = func(mod gotenberg.Module) (*zap.Logger, error) {
-					return nil, errors.New("foo")
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "provision success",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.LoggerProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LoggerMock = func(mod gotenberg.Module) (*zap.Logger, error) {
-					return zap.NewNop(), nil
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Api).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			a := new(Api)
-			err := a.Provision(tc.ctx)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestApi_Validate(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		binPath     string
-		unoBinPath  string
-		expectError bool
-	}{
-		{
-			scenario:    "empty LibreOffice bin path",
-			binPath:     "",
-			unoBinPath:  os.Getenv("UNOCONVERTER_BIN_PATH"),
-			expectError: true,
-		},
-		{
-			scenario:    "LibreOffice bin path does not exist",
-			binPath:     "/foo",
-			unoBinPath:  os.Getenv("UNOCONVERTER_BIN_PATH"),
-			expectError: true,
-		},
-		{
-			scenario:    "empty uno bin path",
-			binPath:     os.Getenv("CHROMIUM_BIN_PATH"),
-			unoBinPath:  "",
-			expectError: true,
-		},
-		{
-			scenario:    "uno bin path does not exist",
-			binPath:     os.Getenv("CHROMIUM_BIN_PATH"),
-			unoBinPath:  "/foo",
-			expectError: true,
-		},
-		{
-			scenario:    "validate success",
-			binPath:     os.Getenv("CHROMIUM_BIN_PATH"),
-			unoBinPath:  os.Getenv("UNOCONVERTER_BIN_PATH"),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			a := new(Api)
-			a.args = libreOfficeArguments{
-				binPath:    tc.binPath,
-				unoBinPath: tc.unoBinPath,
-			}
-			err := a.Validate()
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestApi_Start(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		autoStart   bool
-		supervisor  *gotenberg.ProcessSupervisorMock
-		expectError bool
-	}{
-		{
-			scenario:    "no auto-start",
-			autoStart:   false,
-			expectError: false,
-		},
-		{
-			scenario:  "auto-start success",
-			autoStart: true,
-			supervisor: &gotenberg.ProcessSupervisorMock{LaunchMock: func() error {
-				return nil
-			}},
-			expectError: false,
-		},
-		{
-			scenario:  "auto-start failed",
-			autoStart: true,
-			supervisor: &gotenberg.ProcessSupervisorMock{LaunchMock: func() error {
-				return errors.New("foo")
-			}},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			a := new(Api)
-			a.autoStart = tc.autoStart
-			a.supervisor = tc.supervisor
-
-			err := a.Start()
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestApi_StartupMessage(t *testing.T) {
-	a := new(Api)
-
-	a.autoStart = true
-	autoStartMsg := a.StartupMessage()
-
-	a.autoStart = false
-	noAutoStartMsg := a.StartupMessage()
-
-	if autoStartMsg == noAutoStartMsg {
-		t.Errorf("expected differrent startup messages based on auto start, but got '%s'", autoStartMsg)
-	}
-}
-
-func TestApi_Stop(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		supervisor  *gotenberg.ProcessSupervisorMock
-		expectError bool
-	}{
-		{
-			scenario: "stop success",
-			supervisor: &gotenberg.ProcessSupervisorMock{ShutdownMock: func() error {
-				return nil
-			}},
-			expectError: false,
-		},
-		{
-			scenario: "stop failed",
-			supervisor: &gotenberg.ProcessSupervisorMock{ShutdownMock: func() error {
-				return errors.New("foo")
-			}},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			a := new(Api)
-			a.logger = zap.NewNop()
-			a.supervisor = tc.supervisor
-
-			ctx, cancel := context.WithTimeout(context.Background(), 0*time.Second)
-			cancel()
-
-			err := a.Stop(ctx)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestApi_Metrics(t *testing.T) {
-	a := new(Api)
-	a.supervisor = &gotenberg.ProcessSupervisorMock{
-		ReqQueueSizeMock: func() int64 {
-			return 10
-		},
-		RestartsCountMock: func() int64 {
-			return 0
-		},
-	}
-
-	metrics, err := a.Metrics()
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-
-	if len(metrics) != 2 {
-		t.Fatalf("expected %d metrics, but got %d", 2, len(metrics))
-	}
-
-	actual := metrics[0].Read()
-	if actual != float64(10) {
-		t.Errorf("expected %f for libreoffice_requests_queue_size, but got %f", float64(10), actual)
-	}
-
-	actual = metrics[1].Read()
-	if actual != float64(0) {
-		t.Errorf("expected %f for libreoffice_restarts_count, but got %f", float64(0), actual)
-	}
-}
-
-func TestApi_Checks(t *testing.T) {
-	for _, tc := range []struct {
-		scenario                 string
-		supervisor               gotenberg.ProcessSupervisor
-		expectAvailabilityStatus health.AvailabilityStatus
-	}{
-		{
-			scenario: "healthy module",
-			supervisor: &gotenberg.ProcessSupervisorMock{HealthyMock: func() bool {
-				return true
-			}},
-			expectAvailabilityStatus: health.StatusUp,
-		},
-		{
-			scenario: "unhealthy module",
-			supervisor: &gotenberg.ProcessSupervisorMock{HealthyMock: func() bool {
-				return false
-			}},
-			expectAvailabilityStatus: health.StatusDown,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			a := new(Api)
-			a.supervisor = tc.supervisor
-
-			checks, err := a.Checks()
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			checker := health.NewChecker(checks...)
-			result := checker.Check(context.Background())
-
-			if result.Status != tc.expectAvailabilityStatus {
-				t.Errorf("expected '%s' as availability status, but got '%s'", tc.expectAvailabilityStatus, result.Status)
-			}
-		})
-	}
-}
-
-func TestChromium_Ready(t *testing.T) {
-	for _, tc := range []struct {
-		scenario     string
-		autoStart    bool
-		startTimeout time.Duration
-		libreOffice  libreOffice
-		expectError  bool
-	}{
-		{
-			scenario:     "no auto-start",
-			autoStart:    false,
-			startTimeout: time.Duration(30) * time.Second,
-			libreOffice: &libreOfficeMock{ProcessMock: gotenberg.ProcessMock{HealthyMock: func(logger *zap.Logger) bool {
-				return false
-			}}},
-			expectError: false,
-		},
-		{
-			scenario:     "auto-start: context done",
-			autoStart:    true,
-			startTimeout: time.Duration(200) * time.Millisecond,
-			libreOffice: &libreOfficeMock{ProcessMock: gotenberg.ProcessMock{HealthyMock: func(logger *zap.Logger) bool {
-				return false
-			}}},
-			expectError: true,
-		},
-		{
-			scenario:     "auto-start success",
-			autoStart:    true,
-			startTimeout: time.Duration(30) * time.Second,
-			libreOffice: &libreOfficeMock{ProcessMock: gotenberg.ProcessMock{HealthyMock: func(logger *zap.Logger) bool {
-				return true
-			}}},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			a := new(Api)
-			a.autoStart = tc.autoStart
-			a.args = libreOfficeArguments{startTimeout: tc.startTimeout}
-			a.libreOffice = tc.libreOffice
-
-			err := a.Ready()
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestApi_LibreOffice(t *testing.T) {
-	a := new(Api)
-
-	_, err := a.LibreOffice()
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestApi_Pdf(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		supervisor  gotenberg.ProcessSupervisor
-		libreOffice libreOffice
-		expectError bool
-	}{
-		{
-			scenario: "PDF task success",
-			libreOffice: &libreOfficeMock{pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
-				return nil
-			}},
-			expectError: false,
-		},
-		{
-			scenario: "PDF task error",
-			libreOffice: &libreOfficeMock{pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
-				return errors.New("PDF task error")
-			}},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			a := new(Api)
-			a.supervisor = &gotenberg.ProcessSupervisorMock{RunMock: func(ctx context.Context, logger *zap.Logger, task func() error) error {
-				return task()
-			}}
-			a.libreOffice = tc.libreOffice
-
-			err := a.Pdf(context.Background(), zap.NewNop(), "", "", Options{})
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestApi_Extensions(t *testing.T) {
-	a := new(Api)
-	extensions := a.Extensions()
-
-	actual := len(extensions)
-	expect := 130
-
-	if actual != expect {
-		t.Errorf("expected %d extensions, but got %d", expect, actual)
-	}
-}

pkg/modules/libreoffice/api/libreoffice.go

@@ -8,6 +8,7 @@ import (
 	"net"
 	"os"
 	"path/filepath"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -43,7 +44,7 @@ type libreOfficeProcess struct {
 func newLibreOfficeProcess(arguments libreOfficeArguments) libreOffice {
 	p := &libreOfficeProcess{
 		arguments: arguments,
-		fs:        gotenberg.NewFileSystem(),
+		fs:        gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll)),
 	}
 	p.isStarted.Store(false)
 
@@ -189,22 +190,23 @@ func (p *libreOfficeProcess) Stop(logger *zap.Logger) error {
 
 	// Always remove the user profile directory created by LibreOffice.
 	copyUserProfileDirPath := p.userProfileDirPath
-	defer func(userProfileDirPath string) {
+	expirationTime := time.Now()
+	defer func(userProfileDirPath string, expirationTime time.Time) {
 		go func() {
 			err := os.RemoveAll(userProfileDirPath)
 			if err != nil {
 				logger.Error(fmt.Sprintf("remove LibreOffice's user profile directory: %v", err))
+			} else {
+				logger.Debug(fmt.Sprintf("'%s' LibreOffice's user profile directory removed", userProfileDirPath))
 			}
 
-			logger.Debug(fmt.Sprintf("'%s' LibreOffice's user profile directory removed", userProfileDirPath))
-
 			// Also remove LibreOffice specific files in the temporary directory.
-			err = gotenberg.GarbageCollect(logger, os.TempDir(), []string{"OSL_PIPE", ".tmp"})
+			err = gotenberg.GarbageCollect(logger, os.TempDir(), []string{"OSL_PIPE", ".tmp"}, expirationTime)
 			if err != nil {
 				logger.Error(err.Error())
 			}
 		}()
-	}(copyUserProfileDirPath)
+	}(copyUserProfileDirPath, expirationTime)
 
 	p.cfgMu.Lock()
 	defer p.cfgMu.Unlock()
@@ -265,18 +267,44 @@ func (p *libreOfficeProcess) pdf(ctx context.Context, logger *zap.Logger, inputP
 		args = append(args, "-vvv")
 	}
 
+	if options.Password != "" {
+		args = append(args, "--password", options.Password)
+	}
+
 	if options.Landscape {
 		args = append(args, "--printer", "PaperOrientation=landscape")
 	}
 
+	// See: https://github.com/gotenberg/gotenberg/issues/1149.
 	if options.PageRanges != "" {
 		args = append(args, "--export", fmt.Sprintf("PageRange=%s", options.PageRanges))
 	}
 
-	if !options.ExportFormFields {
-		args = append(args, "--export", "ExportFormFields=false")
+	if !options.UpdateIndexes {
+		args = append(args, "--disable-update-indexes")
 	}
 
+	args = append(args, "--export", fmt.Sprintf("ExportFormFields=%t", options.ExportFormFields))
+	args = append(args, "--export", fmt.Sprintf("AllowDuplicateFieldNames=%t", options.AllowDuplicateFieldNames))
+	args = append(args, "--export", fmt.Sprintf("ExportBookmarks=%t", options.ExportBookmarks))
+	args = append(args, "--export", fmt.Sprintf("ExportBookmarks=%t", options.ExportBookmarks))
+	args = append(args, "--export", fmt.Sprintf("ExportBookmarksToPDFDestination=%t", options.ExportBookmarksToPdfDestination))
+	args = append(args, "--export", fmt.Sprintf("ExportPlaceholders=%t", options.ExportPlaceholders))
+	args = append(args, "--export", fmt.Sprintf("ExportNotes=%t", options.ExportNotes))
+	args = append(args, "--export", fmt.Sprintf("ExportNotesPages=%t", options.ExportNotesPages))
+	args = append(args, "--export", fmt.Sprintf("ExportOnlyNotesPages=%t", options.ExportOnlyNotesPages))
+	args = append(args, "--export", fmt.Sprintf("ExportNotesInMargin=%t", options.ExportNotesInMargin))
+	args = append(args, "--export", fmt.Sprintf("ConvertOOoTargetToPDFTarget=%t", options.ConvertOooTargetToPdfTarget))
+	args = append(args, "--export", fmt.Sprintf("ExportLinksRelativeFsys=%t", options.ExportLinksRelativeFsys))
+	args = append(args, "--export", fmt.Sprintf("ExportHiddenSlides=%t", options.ExportHiddenSlides))
+	args = append(args, "--export", fmt.Sprintf("IsSkipEmptyPages=%t", options.SkipEmptyPages))
+	args = append(args, "--export", fmt.Sprintf("IsAddStream=%t", options.AddOriginalDocumentAsStream))
+	args = append(args, "--export", fmt.Sprintf("SinglePageSheets=%t", options.SinglePageSheets))
+	args = append(args, "--export", fmt.Sprintf("UseLosslessCompression=%t", options.LosslessImageCompression))
+	args = append(args, "--export", fmt.Sprintf("Quality=%d", options.Quality))
+	args = append(args, "--export", fmt.Sprintf("ReduceImageResolution=%t", options.ReduceImageResolution))
+	args = append(args, "--export", fmt.Sprintf("MaxImageResolution=%d", options.MaxImageResolution))
+
 	switch options.PdfFormats.PdfA {
 	case "":
 	case gotenberg.PdfA1b:
@@ -292,12 +320,14 @@ func (p *libreOfficeProcess) pdf(ctx context.Context, logger *zap.Logger, inputP
 	if options.PdfFormats.PdfUa {
 		args = append(
 			args,
+			"--export", "PDFUACompliance=true",
 			"--export", "UseTaggedPDF=true",
 			"--export", "EnableTextAccessForAccessibilityTools=true",
 		)
 	} else {
 		args = append(
 			args,
+			"--export", "PDFUACompliance=false",
 			"--export", "UseTaggedPDF=false",
 			"--export", "EnableTextAccessForAccessibilityTools=false",
 		)
@@ -323,19 +353,24 @@ func (p *libreOfficeProcess) pdf(ctx context.Context, logger *zap.Logger, inputP
 	}
 
 	// LibreOffice's errors are not explicit.
-	// That's why we have to make an educated guess according to the exit code
-	// and given inputs.
-	if exitCode == 5 && options.PageRanges != "" {
-		return ErrMalformedPageRanges
+	// For instance, an exit code 5 may be explained by a malformed page
+	// ranges, but also by a not required password.
+
+	// We may want to retry in case of a core dumped event.
+	// See https://github.com/gotenberg/gotenberg/issues/639.
+	if strings.Contains(err.Error(), "core dumped") {
+		return ErrCoreDumped
+	}
+
+	if exitCode == 5 {
+		// Potentially malformed page ranges or password not required.
+		return ErrUnoException
+	}
+	if exitCode == 6 {
+		// Password potentially required or invalid.
+		return ErrRuntimeException
 	}
 
-	// Possible errors:
-	// 1. LibreOffice failed for some reason.
-	// 2. Context done.
-	//
-	// On the second scenario, LibreOffice might not have time to remove some
-	// of its temporary files, as it has been killed without warning. The
-	// garbage collector will delete them for us (if the module is loaded).
 	return fmt.Errorf("convert to PDF: %w", err)
 }
 

pkg/modules/libreoffice/api/libreoffice_test.go

@@ -1,679 +0,0 @@
-package api
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"os"
-	"testing"
-	"time"
-
-	"github.com/google/uuid"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestLibreOfficeProcess_Start(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		libreOffice libreOffice
-		expectError bool
-		cleanup     bool
-	}{
-		{
-			scenario: "successful start",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			expectError: false,
-			cleanup:     true,
-		},
-		{
-			scenario: "LibreOffice already started",
-			libreOffice: func() libreOffice {
-				p := new(libreOfficeProcess)
-				p.isStarted.Store(true)
-				return p
-			}(),
-			expectError: true,
-			cleanup:     false,
-		},
-		{
-			scenario: "non-exit code 81 on first start",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      "foo",
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			expectError: true,
-			cleanup:     false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			logger := zap.NewNop()
-			err := tc.libreOffice.Start(logger)
-
-			if tc.cleanup {
-				defer func(p libreOffice, logger *zap.Logger) {
-					err = p.Stop(logger)
-					if err != nil {
-						t.Fatalf("expected no error while cleaning up, but got: %v", err)
-					}
-				}(tc.libreOffice, logger)
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestLibreOfficeProcess_Stop(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		libreOffice libreOffice
-		setup       func(libreOffice libreOffice, logger *zap.Logger) error
-		expectError bool
-	}{
-		{
-			scenario: "successful stop",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			setup: func(p libreOffice, logger *zap.Logger) error {
-				return p.Start(logger)
-			},
-			expectError: false,
-		},
-		{
-			scenario: "LibreOffice already stopped",
-			libreOffice: func() libreOffice {
-				p := new(libreOfficeProcess)
-				p.isStarted.Store(false)
-				return p
-			}(),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			logger := zap.NewNop()
-
-			if tc.setup != nil {
-				err := tc.setup(tc.libreOffice, logger)
-				if err != nil {
-					t.Fatalf("setup error: %v", err)
-				}
-			}
-
-			err := tc.libreOffice.Stop(logger)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestLibreOfficeProcess_Healthy(t *testing.T) {
-	for _, tc := range []struct {
-		scenario      string
-		libreOffice   libreOffice
-		setup         func(libreOffice libreOffice, logger *zap.Logger) error
-		expectHealthy bool
-		cleanup       bool
-	}{
-		{
-			scenario: "healthy LibreOffice",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			setup: func(p libreOffice, logger *zap.Logger) error {
-				return p.Start(logger)
-			},
-			expectHealthy: true,
-			cleanup:       true,
-		},
-		{
-			scenario: "LibreOffice not started",
-			libreOffice: func() libreOffice {
-				p := new(libreOfficeProcess)
-				p.isStarted.Store(false)
-				return p
-			}(),
-			expectHealthy: false,
-			cleanup:       false,
-		},
-		{
-			scenario: "unhealthy LibreOffice",
-			libreOffice: func() libreOffice {
-				p := new(libreOfficeProcess)
-				p.isStarted.Store(true)
-				p.socketPort = 12345
-				return p
-			}(),
-			expectHealthy: false,
-			cleanup:       false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			logger := zap.NewNop()
-
-			if tc.setup != nil {
-				err := tc.setup(tc.libreOffice, logger)
-				if err != nil {
-					t.Fatalf("setup error: %v", err)
-				}
-			}
-
-			if tc.cleanup {
-				defer func(p libreOffice, logger *zap.Logger) {
-					err := p.Stop(logger)
-					if err != nil {
-						t.Fatalf("expected no error while cleaning up, but got: %v", err)
-					}
-				}(tc.libreOffice, logger)
-			}
-
-			healthy := tc.libreOffice.Healthy(logger)
-
-			if !tc.expectHealthy && healthy {
-				t.Fatal("expected unhealthy LibreOffice but got an healthy one")
-			}
-
-			if tc.expectHealthy && !healthy {
-				t.Fatal("expected a healthy LibreOffice but got an unhealthy one")
-			}
-		})
-	}
-}
-
-func TestLibreOfficeProcess_pdf(t *testing.T) {
-	for _, tc := range []struct {
-		scenario      string
-		libreOffice   libreOffice
-		fs            *gotenberg.FileSystem
-		options       Options
-		cancelledCtx  bool
-		start         bool
-		expectError   bool
-		expectedError error
-	}{
-		{
-			scenario: "LibreOffice not started",
-			libreOffice: func() libreOffice {
-				p := new(libreOfficeProcess)
-				p.isStarted.Store(false)
-				return p
-			}(),
-			fs:           gotenberg.NewFileSystem(),
-			cancelledCtx: false,
-			start:        false,
-			expectError:  true,
-		},
-		{
-			scenario: "ErrInvalidPdfFormats",
-			libreOffice: func() libreOffice {
-				p := new(libreOfficeProcess)
-				p.socketPort = 12345
-				p.isStarted.Store(true)
-				return p
-			}(),
-			fs:            gotenberg.NewFileSystem(),
-			options:       Options{PdfFormats: gotenberg.PdfFormats{PdfA: "foo"}},
-			cancelledCtx:  false,
-			start:         false,
-			expectError:   true,
-			expectedError: ErrInvalidPdfFormats,
-		},
-		{
-			scenario: "ErrMalformedPageRanges",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			options: Options{PageRanges: "foo"},
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("ErrMalformedPageRanges"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			cancelledCtx:  false,
-			start:         true,
-			expectError:   true,
-			expectedError: ErrMalformedPageRanges,
-		},
-		{
-			scenario: "context done",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Context done"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			cancelledCtx: true,
-			start:        true,
-			expectError:  true,
-		},
-		{
-			scenario: "success (default options)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Success"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-		{
-			scenario: "success (landscape)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Landscape"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			options:      Options{Landscape: true},
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-		{
-			scenario: "success (disable form fields)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("DisableFormFields"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			options:      Options{ExportFormFields: false},
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-		{
-			scenario: "success (page ranges)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Landscape"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			options:      Options{PageRanges: "1-1"},
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-		{
-			scenario: "success (PDF/A-1b)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Landscape"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			options:      Options{PdfFormats: gotenberg.PdfFormats{PdfA: gotenberg.PdfA1b}},
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-		{
-			scenario: "success (PDF/A-2b)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Landscape"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			options:      Options{PdfFormats: gotenberg.PdfFormats{PdfA: gotenberg.PdfA2b}},
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-		{
-			scenario: "success (PDF/A-3b)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Landscape"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			options:      Options{PdfFormats: gotenberg.PdfFormats{PdfA: gotenberg.PdfA3b}},
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-		{
-			scenario: "success (PDF/UA)",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Landscape"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			options:      Options{PdfFormats: gotenberg.PdfFormats{PdfUa: true}},
-			cancelledCtx: false,
-			start:        true,
-			expectError:  false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			// Force the debug level.
-			logger := zap.NewExample()
-
-			defer func() {
-				err := os.RemoveAll(tc.fs.WorkingDirPath())
-				if err != nil {
-					t.Fatalf("expected no error while cleaning up, but got: %v", err)
-				}
-			}()
-
-			if tc.start {
-				err := tc.libreOffice.Start(logger)
-				if err != nil {
-					t.Fatalf("setup error: %v", err)
-				}
-
-				defer func(p libreOffice, logger *zap.Logger) {
-					err = p.Stop(logger)
-					if err != nil {
-						t.Fatalf("expected no error while cleaning up, but got: %v", err)
-					}
-				}(tc.libreOffice, logger)
-			}
-
-			ctx, cancel := context.WithTimeout(context.Background(), time.Duration(5)*time.Second)
-			defer cancel()
-
-			if tc.cancelledCtx {
-				cancel()
-			}
-
-			err := tc.libreOffice.pdf(
-				ctx,
-				logger,
-				fmt.Sprintf("%s/document.txt", tc.fs.WorkingDirPath()),
-				fmt.Sprintf("%s/%s.pdf", tc.fs.WorkingDirPath(), uuid.NewString()),
-				tc.options,
-			)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if tc.expectedError != nil && !errors.Is(err, tc.expectedError) {
-				t.Fatalf("expected error %v but got: %v", tc.expectedError, err)
-			}
-		})
-	}
-}
-
-func TestNonBasicLatinCharactersGuard(t *testing.T) {
-	for _, tc := range []struct {
-		scenario            string
-		fs                  *gotenberg.FileSystem
-		filename            string
-		expectSameInputPath bool
-		expectError         bool
-	}{
-		{
-			scenario: "basic latin characters",
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/document.txt", fs.WorkingDirPath()), []byte("Basic latin characters"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			filename:            "document.txt",
-			expectSameInputPath: true,
-			expectError:         false,
-		},
-		{
-			scenario: "non-basic latin characters",
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem()
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/éèßàùä.txt", fs.WorkingDirPath()), []byte("Non-basic latin characters"), 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return fs
-			}(),
-			filename:            "éèßàùä.txt",
-			expectSameInputPath: false,
-			expectError:         false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			defer func() {
-				err := os.RemoveAll(tc.fs.WorkingDirPath())
-				if err != nil {
-					t.Fatalf("expected no error while cleaning up, but got: %v", err)
-				}
-			}()
-
-			inputPath := fmt.Sprintf("%s/%s", tc.fs.WorkingDirPath(), tc.filename)
-			newInputPath, err := nonBasicLatinCharactersGuard(
-				zap.NewNop(),
-				inputPath,
-			)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if tc.expectSameInputPath && newInputPath != inputPath {
-				t.Fatalf("expected same input path, but got '%s'", newInputPath)
-			}
-
-			if !tc.expectSameInputPath && newInputPath == inputPath {
-				t.Fatalf("expected different input path, but got same '%s'", newInputPath)
-			}
-		})
-	}
-}

pkg/modules/libreoffice/api/mocks.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"context"
+	"errors"
 
 	"go.uber.org/zap"
 
@@ -33,12 +34,21 @@ func (provider *ProviderMock) LibreOffice() (Uno, error) {
 
 // libreOfficeMock is a mock for the [libreOffice] interface.
 type libreOfficeMock struct {
+	errCoreDumpedCount int
+
 	gotenberg.ProcessMock
 	pdfMock func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error
 }
 
 func (b *libreOfficeMock) pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error {
-	return b.pdfMock(ctx, logger, inputPath, outputPath, options)
+	err := b.pdfMock(ctx, logger, inputPath, outputPath, options)
+	if errors.Is(err, ErrCoreDumped) {
+		b.errCoreDumpedCount += 1
+	}
+	if b.errCoreDumpedCount > 1 {
+		return nil
+	}
+	return err
 }
 
 // Interface guards.

pkg/modules/libreoffice/api/mocks_test.go

@@ -1,55 +0,0 @@
-package api
-
-import (
-	"context"
-	"testing"
-
-	"go.uber.org/zap"
-)
-
-func TestApiMock(t *testing.T) {
-	mock := &ApiMock{
-		PdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
-			return nil
-		},
-		ExtensionsMock: func() []string {
-			return nil
-		},
-	}
-
-	err := mock.Pdf(context.Background(), zap.NewNop(), "", "", Options{})
-	if err != nil {
-		t.Errorf("expected no error from ApiMock.Pdf, but got: %v", err)
-	}
-
-	ext := mock.Extensions()
-	if ext != nil {
-		t.Errorf("expected nil result from ApiMock.Extensions, but got: %v", ext)
-	}
-}
-
-func TestProviderMock(t *testing.T) {
-	mock := &ProviderMock{
-		LibreOfficeMock: func() (Uno, error) {
-			return nil, nil
-		},
-	}
-
-	_, err := mock.LibreOffice()
-	if err != nil {
-		t.Errorf("expected no error from ProviderMock.LibreOffice, but got: %v", err)
-	}
-}
-
-func TestLibreOfficeMock(t *testing.T) {
-	mock := &libreOfficeMock{
-		pdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error {
-			return nil
-		},
-	}
-
-	err := mock.pdf(context.Background(), zap.NewNop(), "", "", Options{})
-	if err != nil {
-		t.Errorf("expected no error from libreOfficeMock.pdf, but got: %v", err)
-	}
-}

pkg/modules/libreoffice/libreoffice_test.go

@@ -1,196 +0,0 @@
-package libreoffice
-
-import (
-	"errors"
-	"reflect"
-	"testing"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-	libreofficeapi "github.com/gotenberg/gotenberg/v8/pkg/modules/libreoffice/api"
-)
-
-func TestLibreOffice_Descriptor(t *testing.T) {
-	descriptor := new(LibreOffice).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(LibreOffice))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestLibreOffice_Provision(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *gotenberg.Context
-		expectError bool
-	}{
-		{
-			scenario: "no LibreOffice API provider",
-			ctx: func() *gotenberg.Context {
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(LibreOffice).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no LibreOffice API from LibreOffice API provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					libreofficeapi.ProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LibreOfficeMock = func() (libreofficeapi.Uno, error) {
-					return nil, errors.New("foo")
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(LibreOffice).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no PDF engine provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					libreofficeapi.ProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LibreOfficeMock = func() (libreofficeapi.Uno, error) {
-					return new(libreofficeapi.ApiMock), nil
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(LibreOffice).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "no PDF engine from PDF engine provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					libreofficeapi.ProviderMock
-					gotenberg.PdfEngineProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LibreOfficeMock = func() (libreofficeapi.Uno, error) {
-					return new(libreofficeapi.ApiMock), nil
-				}
-				mod.PdfEngineMock = func() (gotenberg.PdfEngine, error) {
-					return nil, errors.New("foo")
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(LibreOffice).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "provision success",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					libreofficeapi.ProviderMock
-					gotenberg.PdfEngineProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return mod }}
-				}
-				mod.LibreOfficeMock = func() (libreofficeapi.Uno, error) {
-					return new(libreofficeapi.ApiMock), nil
-				}
-				mod.PdfEngineMock = func() (gotenberg.PdfEngine, error) {
-					return new(gotenberg.PdfEngineMock), nil
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(LibreOffice).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(LibreOffice)
-			err := mod.Provision(tc.ctx)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestLibreOffice_Routes(t *testing.T) {
-	for _, tc := range []struct {
-		scenario      string
-		expectRoutes  int
-		disableRoutes bool
-	}{
-		{
-			scenario:      "routes not disabled",
-			expectRoutes:  1,
-			disableRoutes: false,
-		},
-		{
-			scenario:      "routes disabled",
-			expectRoutes:  0,
-			disableRoutes: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(LibreOffice)
-			mod.disableRoutes = tc.disableRoutes
-
-			routes, err := mod.Routes()
-			if err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectRoutes != len(routes) {
-				t.Errorf("expected %d routes but got %d", tc.expectRoutes, len(routes))
-			}
-		})
-	}
-}

pkg/modules/libreoffice/pdfengine/pdfengine.go

@@ -51,14 +51,24 @@ func (engine *LibreOfficePdfEngine) Merge(ctx context.Context, logger *zap.Logge
 	return fmt.Errorf("merge PDFs with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
+// Split is not available in this implementation.
+func (engine *LibreOfficePdfEngine) Split(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+	return nil, fmt.Errorf("split PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
+// Flatten is not available in this implementation.
+func (engine *LibreOfficePdfEngine) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
+	return fmt.Errorf("Flatten PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
 // Convert converts the given PDF to a specific PDF format. Currently, only the
 // PDF/A-1b, PDF/A-2b, PDF/A-3b and PDF/UA formats are available. If another
 // PDF format is requested, it returns a [gotenberg.ErrPdfFormatNotSupported]
 // error.
 func (engine *LibreOfficePdfEngine) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-	err := engine.unoApi.Pdf(ctx, logger, inputPath, outputPath, api.Options{
-		PdfFormats: formats,
-	})
+	opts := api.DefaultOptions()
+	opts.PdfFormats = formats
+	err := engine.unoApi.Pdf(ctx, logger, inputPath, outputPath, opts)
 
 	if err == nil {
 		return nil

pkg/modules/libreoffice/pdfengine/pdfengine_test.go

@@ -1,186 +0,0 @@
-package pdfengine
-
-import (
-	"context"
-	"errors"
-	"reflect"
-	"testing"
-
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-	"github.com/gotenberg/gotenberg/v8/pkg/modules/libreoffice/api"
-)
-
-func TestLibreOfficePdfEngine_Descriptor(t *testing.T) {
-	descriptor := new(LibreOfficePdfEngine).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(LibreOfficePdfEngine))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestLibreOfficePdfEngine_Provider(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *gotenberg.Context
-		expectError bool
-	}{
-		{
-			scenario: "no LibreOffice API provider",
-			ctx: gotenberg.NewContext(
-				gotenberg.ParsedFlags{
-					FlagSet: new(LibreOfficePdfEngine).Descriptor().FlagSet,
-				},
-				[]gotenberg.ModuleDescriptor{},
-			),
-			expectError: true,
-		},
-		{
-			scenario: "no API from LibreOffice API provider",
-			ctx: func() *gotenberg.Context {
-				provider := &struct {
-					gotenberg.ModuleMock
-					api.ProviderMock
-				}{}
-				provider.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module {
-						return provider
-					}}
-				}
-				provider.LibreOfficeMock = func() (api.Uno, error) {
-					return nil, errors.New("foo")
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(LibreOfficePdfEngine).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						provider.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "provision success",
-			ctx: func() *gotenberg.Context {
-				provider := &struct {
-					gotenberg.ModuleMock
-					api.ProviderMock
-				}{}
-				provider.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module {
-						return provider
-					}}
-				}
-				provider.LibreOfficeMock = func() (api.Uno, error) {
-					return new(api.ApiMock), nil
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(LibreOfficePdfEngine).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						provider.Descriptor(),
-					},
-				)
-			}(),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(LibreOfficePdfEngine)
-			err := engine.Provision(tc.ctx)
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestLibreOfficePdfEngine_Merge(t *testing.T) {
-	engine := new(LibreOfficePdfEngine)
-	err := engine.Merge(context.Background(), zap.NewNop(), nil, "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}
-
-func TestLibreOfficePdfEngine_Convert(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		api         api.Uno
-		expectError bool
-	}{
-		{
-			scenario: "convert success",
-			api: &api.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options api.Options) error {
-					return nil
-				},
-			},
-			expectError: false,
-		},
-		{
-			scenario: "invalid PDF format",
-			api: &api.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options api.Options) error {
-					return api.ErrInvalidPdfFormats
-				},
-			},
-			expectError: true,
-		},
-		{
-			scenario: "convert fail",
-			api: &api.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options api.Options) error {
-					return errors.New("foo")
-				},
-			},
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := &LibreOfficePdfEngine{unoApi: tc.api}
-			err := engine.Convert(context.Background(), zap.NewNop(), gotenberg.PdfFormats{}, "", "")
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestLibreOfficePdfEngine_ReadMetadata(t *testing.T) {
-	engine := new(LibreOfficePdfEngine)
-	_, err := engine.ReadMetadata(context.Background(), zap.NewNop(), "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}
-
-func TestLibreOfficePdfEngine_WriteMetadata(t *testing.T) {
-	engine := new(LibreOfficePdfEngine)
-	err := engine.WriteMetadata(context.Background(), zap.NewNop(), nil, "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}

pkg/modules/libreoffice/routes.go

@@ -1,16 +1,18 @@
 package libreoffice
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
+	"slices"
+	"strconv"
 
 	"github.com/labstack/echo/v4"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 	"github.com/gotenberg/gotenberg/v8/pkg/modules/api"
 	libreofficeapi "github.com/gotenberg/gotenberg/v8/pkg/modules/libreoffice/api"
+	"github.com/gotenberg/gotenberg/v8/pkg/modules/pdfengines"
 )
 
 // convertRoute returns an [api.Route] which can convert LibreOffice documents
@@ -22,59 +24,148 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 		IsMultipart: true,
 		Handler: func(c echo.Context) error {
 			ctx := c.Get("context").(*api.Context)
+			defaultOptions := libreofficeapi.DefaultOptions()
+
+			form := ctx.FormData()
+			splitMode := pdfengines.FormDataPdfSplitMode(form, false)
+			pdfFormats := pdfengines.FormDataPdfFormats(form)
+			metadata := pdfengines.FormDataPdfMetadata(form, false)
+
+			zeroValuedSplitMode := gotenberg.SplitMode{}
 
-			// Let's get the data from the form and validate them.
 			var (
-				inputPaths       []string
-				landscape        bool
-				nativePageRanges string
-				exportFormFields bool
-				pdfa             string
-				pdfua            bool
-				nativePdfFormats bool
-				merge            bool
-				metadata         map[string]interface{}
+				inputPaths                      []string
+				password                        string
+				landscape                       bool
+				nativePageRanges                string
+				updateIndexes                   bool
+				exportFormFields                bool
+				allowDuplicateFieldNames        bool
+				exportBookmarks                 bool
+				exportBookmarksToPdfDestination bool
+				exportPlaceholders              bool
+				exportNotes                     bool
+				exportNotesPages                bool
+				exportOnlyNotesPages            bool
+				exportNotesInMargin             bool
+				convertOooTargetToPdfTarget     bool
+				exportLinksRelativeFsys         bool
+				exportHiddenSlides              bool
+				skipEmptyPages                  bool
+				addOriginalDocumentAsStream     bool
+				singlePageSheets                bool
+				losslessImageCompression        bool
+				quality                         int
+				reduceImageResolution           bool
+				maxImageResolution              int
+				nativePdfFormats                bool
+				merge                           bool
+				flatten                         bool
 			)
 
-			err := ctx.FormData().
+			err := form.
 				MandatoryPaths(libreOffice.Extensions(), &inputPaths).
-				Bool("landscape", &landscape, false).
-				String("nativePageRanges", &nativePageRanges, "").
-				Bool("exportFormFields", &exportFormFields, true).
-				String("pdfa", &pdfa, "").
-				Bool("pdfua", &pdfua, false).
-				Bool("nativePdfFormats", &nativePdfFormats, true).
-				Bool("merge", &merge, false).
-				Custom("metadata", func(value string) error {
-					if len(value) > 0 {
-						err := json.Unmarshal([]byte(value), &metadata)
-						if err != nil {
-							return fmt.Errorf("unmarshal metadata: %w", err)
-						}
+				String("password", &password, defaultOptions.Password).
+				Bool("landscape", &landscape, defaultOptions.Landscape).
+				String("nativePageRanges", &nativePageRanges, defaultOptions.PageRanges).
+				Bool("updateIndexes", &updateIndexes, defaultOptions.UpdateIndexes).
+				Bool("exportFormFields", &exportFormFields, defaultOptions.ExportFormFields).
+				Bool("allowDuplicateFieldNames", &allowDuplicateFieldNames, defaultOptions.AllowDuplicateFieldNames).
+				Bool("exportBookmarks", &exportBookmarks, defaultOptions.ExportBookmarks).
+				Bool("exportBookmarksToPdfDestination", &exportBookmarksToPdfDestination, defaultOptions.ExportBookmarksToPdfDestination).
+				Bool("exportPlaceholders", &exportPlaceholders, defaultOptions.ExportPlaceholders).
+				Bool("exportNotes", &exportNotes, defaultOptions.ExportNotes).
+				Bool("exportNotesPages", &exportNotesPages, defaultOptions.ExportNotesPages).
+				Bool("exportOnlyNotesPages", &exportOnlyNotesPages, defaultOptions.ExportOnlyNotesPages).
+				Bool("exportNotesInMargin", &exportNotesInMargin, defaultOptions.ExportNotesInMargin).
+				Bool("convertOooTargetToPdfTarget", &convertOooTargetToPdfTarget, defaultOptions.ConvertOooTargetToPdfTarget).
+				Bool("exportLinksRelativeFsys", &exportLinksRelativeFsys, defaultOptions.ExportLinksRelativeFsys).
+				Bool("exportHiddenSlides", &exportHiddenSlides, defaultOptions.ExportHiddenSlides).
+				Bool("skipEmptyPages", &skipEmptyPages, defaultOptions.SkipEmptyPages).
+				Bool("addOriginalDocumentAsStream", &addOriginalDocumentAsStream, defaultOptions.AddOriginalDocumentAsStream).
+				Bool("singlePageSheets", &singlePageSheets, defaultOptions.SinglePageSheets).
+				Bool("losslessImageCompression", &losslessImageCompression, defaultOptions.LosslessImageCompression).
+				Custom("quality", func(value string) error {
+					if value == "" {
+						quality = defaultOptions.Quality
+						return nil
 					}
+
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+
+					if intValue < 1 {
+						return errors.New("value is inferior to 1")
+					}
+
+					if intValue > 100 {
+						return errors.New("value is superior to 100")
+					}
+
+					quality = intValue
 					return nil
 				}).
+				Bool("reduceImageResolution", &reduceImageResolution, defaultOptions.ReduceImageResolution).
+				Custom("maxImageResolution", func(value string) error {
+					if value == "" {
+						maxImageResolution = defaultOptions.MaxImageResolution
+						return nil
+					}
+
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+
+					if !slices.Contains([]int{75, 150, 300, 600, 1200}, intValue) {
+						return errors.New("value is not 75, 150, 300, 600 or 1200")
+					}
+
+					maxImageResolution = intValue
+					return nil
+				}).
+				Bool("nativePdfFormats", &nativePdfFormats, true).
+				Bool("merge", &merge, false).
+				Bool("flatten", &flatten, false).
 				Validate()
 			if err != nil {
 				return fmt.Errorf("validate form data: %w", err)
 			}
 
-			pdfFormats := gotenberg.PdfFormats{
-				PdfA:  pdfa,
-				PdfUa: pdfua,
-			}
-
-			// Alright, let's convert each document to PDF.
 			outputPaths := make([]string, len(inputPaths))
 			for i, inputPath := range inputPaths {
 				outputPaths[i] = ctx.GeneratePath(".pdf")
 				options := libreofficeapi.Options{
-					Landscape:        landscape,
-					PageRanges:       nativePageRanges,
-					ExportFormFields: exportFormFields,
+					Password:                        password,
+					Landscape:                       landscape,
+					PageRanges:                      nativePageRanges,
+					UpdateIndexes:                   updateIndexes,
+					ExportFormFields:                exportFormFields,
+					AllowDuplicateFieldNames:        allowDuplicateFieldNames,
+					ExportBookmarks:                 exportBookmarks,
+					ExportBookmarksToPdfDestination: exportBookmarksToPdfDestination,
+					ExportPlaceholders:              exportPlaceholders,
+					ExportNotes:                     exportNotes,
+					ExportNotesPages:                exportNotesPages,
+					ExportOnlyNotesPages:            exportOnlyNotesPages,
+					ExportNotesInMargin:             exportNotesInMargin,
+					ConvertOooTargetToPdfTarget:     convertOooTargetToPdfTarget,
+					ExportLinksRelativeFsys:         exportLinksRelativeFsys,
+					ExportHiddenSlides:              exportHiddenSlides,
+					SkipEmptyPages:                  skipEmptyPages,
+					AddOriginalDocumentAsStream:     addOriginalDocumentAsStream,
+					SinglePageSheets:                singlePageSheets,
+					LosslessImageCompression:        losslessImageCompression,
+					Quality:                         quality,
+					ReduceImageResolution:           reduceImageResolution,
+					MaxImageResolution:              maxImageResolution,
 				}
 
-				if nativePdfFormats {
+				if nativePdfFormats && splitMode == zeroValuedSplitMode {
+					// Only apply natively given PDF formats if we're not
+					// splitting the PDF later.
 					options.PdfFormats = pdfFormats
 				}
 
@@ -90,10 +181,17 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 						)
 					}
 
-					if errors.Is(err, libreofficeapi.ErrMalformedPageRanges) {
+					if errors.Is(err, libreofficeapi.ErrUnoException) {
 						return api.WrapError(
 							fmt.Errorf("convert to PDF: %w", err),
-							api.NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Malformed page ranges '%s' (nativePageRanges)", options.PageRanges)),
+							api.NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("LibreOffice failed to process a document: possible causes include malformed page ranges '%s' (nativePageRanges), or, if a password has been provided, it may not be required. In any case, the exact cause is uncertain.", options.PageRanges)),
+						)
+					}
+
+					if errors.Is(err, libreofficeapi.ErrRuntimeException) {
+						return api.WrapError(
+							fmt.Errorf("convert to PDF: %w", err),
+							api.NewSentinelHttpError(http.StatusBadRequest, "LibreOffice failed to process a document: a password may be required, or, if one has been given, it is invalid. In any case, the exact cause is uncertain."),
 						)
 					}
 
@@ -101,11 +199,8 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				}
 			}
 
-			// So far so good, let's check if we have to merge the PDFs.
-			if len(outputPaths) > 1 && merge {
-				outputPath := ctx.GeneratePath(".pdf")
-
-				err = engine.Merge(ctx, ctx.Log(), outputPaths, outputPath)
+			if merge {
+				outputPath, err := pdfengines.MergeStub(ctx, engine, outputPaths)
 				if err != nil {
 					return fmt.Errorf("merge PDFs: %w", err)
 				}
@@ -114,37 +209,61 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				outputPaths = []string{outputPath}
 			}
 
-			// Let's check if the client want to convert each PDF to a specific
-			// PDF format.
-			zeroValued := gotenberg.PdfFormats{}
-			if !nativePdfFormats && pdfFormats != zeroValued {
-				convertOutputPaths := make([]string, len(outputPaths))
+			if splitMode != zeroValuedSplitMode {
+				if !merge {
+					// document.docx -> document.docx.pdf, so that split naming
+					// document.docx_0.pdf, etc.
+					for i, inputPath := range inputPaths {
+						outputPath := fmt.Sprintf("%s.pdf", inputPath)
 
-				for i, outputPath := range outputPaths {
-					convertInputPath := outputPath
-					convertOutputPaths[i] = ctx.GeneratePath(".pdf")
+						err = ctx.Rename(outputPaths[i], outputPath)
+						if err != nil {
+							return fmt.Errorf("rename output path: %w", err)
+						}
 
-					err = engine.Convert(ctx, ctx.Log(), pdfFormats, convertInputPath, convertOutputPaths[i])
-					if err != nil {
-						return fmt.Errorf("convert PDF: %w", err)
+						outputPaths[i] = outputPath
 					}
 				}
 
-				// Important: the output paths are now the converted files.
-				outputPaths = convertOutputPaths
-			}
-
-			// Writes and potentially overrides metadata entries, if any.
-			if len(metadata) > 0 {
-				for _, outputPath := range outputPaths {
-					err = engine.WriteMetadata(ctx, ctx.Log(), metadata, outputPath)
-					if err != nil {
-						return fmt.Errorf("write metadata: %w", err)
-					}
+				outputPaths, err = pdfengines.SplitPdfStub(ctx, engine, splitMode, outputPaths)
+				if err != nil {
+					return fmt.Errorf("split PDFs: %w", err)
 				}
 			}
 
-			if len(outputPaths) > 1 {
+			if !nativePdfFormats || (nativePdfFormats && splitMode != zeroValuedSplitMode) {
+				convertOutputPaths, err := pdfengines.ConvertStub(ctx, engine, pdfFormats, outputPaths)
+				if err != nil {
+					return fmt.Errorf("convert PDFs: %w", err)
+				}
+
+				if splitMode != zeroValuedSplitMode {
+					// The PDF has been split and split parts have been converted to
+					// specific formats. We want to keep the split naming.
+					for i, convertOutputPath := range convertOutputPaths {
+						err = ctx.Rename(convertOutputPath, outputPaths[i])
+						if err != nil {
+							return fmt.Errorf("rename output path: %w", err)
+						}
+					}
+				} else {
+					outputPaths = convertOutputPaths
+				}
+			}
+
+			err = pdfengines.WriteMetadataStub(ctx, engine, metadata, outputPaths)
+			if err != nil {
+				return fmt.Errorf("write metadata: %w", err)
+			}
+
+			if flatten {
+				err = pdfengines.FlattenStub(ctx, engine, outputPaths)
+				if err != nil {
+					return fmt.Errorf("flatten PDFs: %w", err)
+				}
+			}
+
+			if len(outputPaths) > 1 && splitMode == zeroValuedSplitMode {
 				// If .zip archive, document.docx -> document.docx.pdf.
 				for i, inputPath := range inputPaths {
 					outputPath := fmt.Sprintf("%s.pdf", inputPath)
@@ -158,8 +277,6 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				}
 			}
 
-			// Last but not least, add the output paths to the context so that
-			// the API is able to send them as a response to the client.
 			err = ctx.AddOutputPaths(outputPaths...)
 			if err != nil {
 				return fmt.Errorf("add output paths: %w", err)

pkg/modules/libreoffice/routes_test.go

@@ -1,455 +0,0 @@
-package libreoffice
-
-import (
-	"context"
-	"errors"
-	"net/http"
-	"slices"
-	"testing"
-
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-	"github.com/gotenberg/gotenberg/v8/pkg/modules/api"
-	libreofficeapi "github.com/gotenberg/gotenberg/v8/pkg/modules/libreoffice/api"
-)
-
-func TestConvertRoute(t *testing.T) {
-	for _, tc := range []struct {
-		scenario               string
-		ctx                    *api.ContextMock
-		libreOffice            libreofficeapi.Uno
-		engine                 gotenberg.PdfEngine
-		expectOptions          libreofficeapi.Options
-		expectError            bool
-		expectHttpError        bool
-		expectHttpStatus       int
-		expectOutputPathsCount int
-		expectOutputPaths      []string
-	}{
-		{
-			scenario: "missing at least one mandatory file",
-			ctx:      &api.ContextMock{Context: new(api.Context)},
-			libreOffice: &libreofficeapi.ApiMock{ExtensionsMock: func() []string {
-				return []string{".docx"}
-			}},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "invalid metadata form field",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				ctx.SetValues(map[string][]string{
-					"metadata": {
-						"foo",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{ExtensionsMock: func() []string {
-				return []string{".docx"}
-			}},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "ErrPdfFormatNotSupported (nativePdfFormats)",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return libreofficeapi.ErrInvalidPdfFormats
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "ErrMalformedPageRanges",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				ctx.SetValues(map[string][]string{
-					"pdfa": {
-						"foo",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return libreofficeapi.ErrMalformedPageRanges
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "error from LibreOffice",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return errors.New("foo")
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			expectError:            true,
-			expectHttpError:        false,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "PDF engine merge error",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx":  "/document.docx",
-					"document2.docx": "/document2.docx",
-				})
-				ctx.SetValues(map[string][]string{
-					"merge": {
-						"true",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			engine: &gotenberg.PdfEngineMock{
-				MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-					return errors.New("foo")
-				},
-			},
-			expectError:            true,
-			expectHttpError:        false,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "PDF engine convert error",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				ctx.SetValues(map[string][]string{
-					"pdfa": {
-						gotenberg.PdfA1b,
-					},
-					"nativePdfFormats": {
-						"false",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			engine: &gotenberg.PdfEngineMock{
-				ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-					return errors.New("foo")
-				},
-			},
-			expectError:            true,
-			expectHttpError:        false,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "PDF engine write metadata error",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				ctx.SetValues(map[string][]string{
-					"metadata": {
-						"{\"Creator\": \"foo\", \"Producer\": \"bar\" }",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			engine: &gotenberg.PdfEngineMock{
-				WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-					return errors.New("foo")
-				},
-			},
-			expectError:            true,
-			expectHttpError:        false,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "cannot rename many files",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx":  "/document.docx",
-					"document2.docx": "/document2.docx",
-					"document2.doc":  "/document2.doc",
-				})
-				ctx.SetPathRename(&gotenberg.PathRenameMock{RenameMock: func(oldpath, newpath string) error {
-					return errors.New("cannot rename")
-				}})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx", ".doc"}
-				},
-			},
-			expectError:            true,
-			expectHttpError:        false,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "cannot add output paths",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				ctx.SetCancelled(true)
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			expectError:            true,
-			expectHttpError:        false,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "success (single file)",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx":  "/document.docx",
-					"document2.docx": "/document2.docx",
-				})
-				ctx.SetValues(map[string][]string{
-					"merge": {
-						"true",
-					},
-					"pdfa": {
-						gotenberg.PdfA1b,
-					},
-					"pdfua": {
-						"true",
-					},
-					"nativePdfFormats": {
-						"false",
-					},
-					"metadata": {
-						"{\"Creator\": \"foo\", \"Producer\": \"bar\" }",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			engine: &gotenberg.PdfEngineMock{
-				ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-					return nil
-				},
-				MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-					return nil
-				},
-				WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-					return nil
-				},
-			},
-			expectError:            false,
-			expectHttpError:        false,
-			expectOutputPathsCount: 1,
-		},
-		{
-			scenario: "success (many files)",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx":  "/document.docx",
-					"document2.docx": "/document2.docx",
-					"document2.doc":  "/document2.doc",
-				})
-				ctx.SetValues(map[string][]string{
-					"pdfa": {
-						gotenberg.PdfA1b,
-					},
-					"pdfua": {
-						"true",
-					},
-					"nativePdfFormats": {
-						"false",
-					},
-					"metadata": {
-						"{\"Creator\": \"foo\", \"Producer\": \"bar\" }",
-					},
-				})
-				ctx.SetPathRename(&gotenberg.PathRenameMock{RenameMock: func(oldpath, newpath string) error {
-					return nil
-				}})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx", ".doc"}
-				},
-			},
-			engine: &gotenberg.PdfEngineMock{
-				ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-					return nil
-				},
-				MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-					return nil
-				},
-				WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-					return nil
-				},
-			},
-			expectError:            false,
-			expectHttpError:        false,
-			expectOutputPathsCount: 3,
-			expectOutputPaths:      []string{"/document.docx.pdf", "/document2.docx.pdf", "/document2.doc.pdf"},
-		},
-		{
-			scenario: "success with native PDF/A & PDF/UA",
-			ctx: func() *api.ContextMock {
-				ctx := &api.ContextMock{Context: new(api.Context)}
-				ctx.SetFiles(map[string]string{
-					"document.docx": "/document.docx",
-				})
-				ctx.SetValues(map[string][]string{
-					"pdfa": {
-						gotenberg.PdfA1b,
-					},
-					"pdfua": {
-						"true",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return nil
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			expectError:            false,
-			expectHttpError:        false,
-			expectOutputPathsCount: 1,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			tc.ctx.SetLogger(zap.NewNop())
-			c := echo.New().NewContext(nil, nil)
-			c.Set("context", tc.ctx.Context)
-
-			err := convertRoute(tc.libreOffice, tc.engine).Handler(c)
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none", err)
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			var httpErr api.HttpError
-			isHttpError := errors.As(err, &httpErr)
-
-			if tc.expectHttpError && !isHttpError {
-				t.Errorf("expected an HTTP error but got: %v", err)
-			}
-
-			if !tc.expectHttpError && isHttpError {
-				t.Errorf("expected no HTTP error but got one: %v", httpErr)
-			}
-
-			if err != nil && tc.expectHttpError && isHttpError {
-				status, _ := httpErr.HttpError()
-				if status != tc.expectHttpStatus {
-					t.Errorf("expected %d as HTTP status code but got %d", tc.expectHttpStatus, status)
-				}
-			}
-
-			if tc.expectOutputPathsCount != len(tc.ctx.OutputPaths()) {
-				t.Errorf("expected %d output paths but got %d", tc.expectOutputPathsCount, len(tc.ctx.OutputPaths()))
-			}
-
-			for _, path := range tc.expectOutputPaths {
-				if !slices.Contains(tc.ctx.OutputPaths(), path) {
-					t.Errorf("expected '%s' in output paths %v", path, tc.ctx.OutputPaths())
-				}
-			}
-		})
-	}
-}

pkg/modules/logging/color.go

@@ -0,0 +1,49 @@
+package logging
+
+import (
+	"fmt"
+
+	"go.uber.org/zap/zapcore"
+)
+
+// Foreground colors.
+// Copy pasted from go.uber.org/zap/internal/color/color.go
+const (
+	black color = iota + 30
+	red
+	green
+	yellow
+	blue
+	magenta
+	cyan
+	white
+)
+
+type color uint8
+
+func (c color) Add(s string) string {
+	return fmt.Sprintf("\x1b[%dm%s\x1b[0m", uint8(c), s)
+}
+
+func levelToColor(l zapcore.Level) color {
+	switch l {
+	case zapcore.DebugLevel:
+		return cyan
+	case zapcore.InfoLevel:
+		return blue
+	case zapcore.WarnLevel:
+		return yellow
+	case zapcore.ErrorLevel:
+		return red
+	case zapcore.DPanicLevel:
+		return red
+	case zapcore.PanicLevel:
+		return red
+	case zapcore.FatalLevel:
+		return red
+	case zapcore.InvalidLevel:
+		return red
+	default:
+		return red
+	}
+}

pkg/modules/logging/gcp.go

@@ -0,0 +1,36 @@
+package logging
+
+import "go.uber.org/zap/zapcore"
+
+func gcpSeverity(l zapcore.Level) string {
+	switch l {
+	case zapcore.DebugLevel:
+		return "DEBUG"
+	case zapcore.InfoLevel:
+		return "INFO"
+	case zapcore.WarnLevel:
+		return "WARNING"
+	case zapcore.ErrorLevel:
+		return "ERROR"
+	case zapcore.DPanicLevel:
+		return "CRITICAL"
+	case zapcore.PanicLevel:
+		return "ALERT"
+	case zapcore.FatalLevel:
+		return "EMERGENCY"
+	case zapcore.InvalidLevel:
+		return "DEFAULT"
+	default:
+		return "DEFAULT"
+	}
+}
+
+func gcpSeverityEncoder(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
+	enc.AppendString(gcpSeverity(l))
+}
+
+func gcpSeverityColorEncoder(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
+	severity := gcpSeverity(l)
+	c := levelToColor(l)
+	enc.AppendString(c.Add(severity))
+}

pkg/modules/logging/logging.go

@@ -34,9 +34,10 @@ const (
 // Logging is a module which implements the [gotenberg.LoggerProvider]
 // interface.
 type Logging struct {
-	level        string
-	format       string
-	fieldsPrefix string
+	level           string
+	format          string
+	fieldsPrefix    string
+	enableGcpFields bool
 }
 
 // Descriptor returns a [Logging]'s module descriptor.
@@ -48,6 +49,14 @@ func (log *Logging) Descriptor() gotenberg.ModuleDescriptor {
 			fs.String("log-level", infoLoggingLevel, fmt.Sprintf("Choose the level of logging detail. Options include %s, %s, %s, or %s", errorLoggingLevel, warnLoggingLevel, infoLoggingLevel, debugLoggingLevel))
 			fs.String("log-format", autoLoggingFormat, fmt.Sprintf("Specify the format of logging. Options include %s, %s, or %s", autoLoggingFormat, jsonLoggingFormat, textLoggingFormat))
 			fs.String("log-fields-prefix", "", "Prepend a specified prefix to each field in the logs")
+			fs.Bool("log-enable-gcp-fields", false, "Enable Google Cloud Platform fields - namely: time, message, severity")
+
+			// Deprecated flags.
+			fs.Bool("log-enable-gcp-severity", false, "Enable Google Cloud Platform severity mapping")
+			err := fs.MarkDeprecated("log-enable-gcp-severity", "use log-enable-gcp-fields instead")
+			if err != nil {
+				panic(err)
+			}
 
 			return fs
 		}(),
@@ -62,6 +71,7 @@ func (log *Logging) Provision(ctx *gotenberg.Context) error {
 	log.level = flags.MustString("log-level")
 	log.format = flags.MustString("log-format")
 	log.fieldsPrefix = flags.MustString("log-fields-prefix")
+	log.enableGcpFields = flags.MustDeprecatedBool("log-enable-gcp-severity", "log-enable-gcp-fields")
 
 	return nil
 }
@@ -101,7 +111,7 @@ func (log *Logging) Logger(mod gotenberg.Module) (*zap.Logger, error) {
 			return nil, fmt.Errorf("get log level: %w", err)
 		}
 
-		encoder, err := newLogEncoder(log.format)
+		encoder, err := newLogEncoder(log.format, log.enableGcpFields)
 		if err != nil {
 			return nil, fmt.Errorf("get log encoder: %w", err)
 		}
@@ -166,26 +176,44 @@ func newLogLevel(level string) (zapcore.Level, error) {
 	return lvl, nil
 }
 
-func newLogEncoder(format string) (zapcore.Encoder, error) {
+func newLogEncoder(format string, gcpFields bool) (zapcore.Encoder, error) {
 	isTerminal := term.IsTerminal(int(os.Stdout.Fd()))
 	encCfg := zap.NewProductionEncoderConfig()
 
-	if isTerminal {
-		// If interactive terminal, make output more human-readable by default.
-		// Credits: https://github.com/caddyserver/caddy/blob/v2.1.1/logging.go#L671.
-		encCfg.EncodeTime = func(ts time.Time, encoder zapcore.PrimitiveArrayEncoder) {
-			encoder.AppendString(ts.UTC().Format("2006/01/02 15:04:05.000"))
+	// Normalize the log format based on the output device.
+	if format == autoLoggingFormat {
+		if isTerminal {
+			format = textLoggingFormat
+		} else {
+			format = jsonLoggingFormat
 		}
+	}
 
-		if format == textLoggingFormat || format == autoLoggingFormat {
+	// Use a human-readable time format if running in a terminal.
+	if isTerminal {
+		encCfg.EncodeTime = func(ts time.Time, encoder zapcore.PrimitiveArrayEncoder) {
+			encoder.AppendString(ts.Local().Format("2006/01/02 15:04:05.000"))
+		}
+	}
+
+	// Configure level encoding based on format and GCP settings.
+	if format == textLoggingFormat && isTerminal {
+		if gcpFields {
+			encCfg.EncodeLevel = gcpSeverityColorEncoder
+		} else {
 			encCfg.EncodeLevel = zapcore.CapitalColorLevelEncoder
 		}
 	}
 
-	if format == autoLoggingFormat && isTerminal {
-		format = textLoggingFormat
-	} else if format == autoLoggingFormat {
-		format = jsonLoggingFormat
+	// For non-text (JSON) or when GCP fields are requested outside a terminal text output,
+	// adjust the configuration to use GCP-specific field names and encoders.
+	if gcpFields && format != textLoggingFormat {
+		encCfg.EncodeLevel = gcpSeverityEncoder
+		encCfg.TimeKey = "time"
+		encCfg.LevelKey = "severity"
+		encCfg.MessageKey = "message"
+		encCfg.EncodeTime = zapcore.ISO8601TimeEncoder
+		encCfg.EncodeDuration = zapcore.MillisDurationEncoder
 	}
 
 	switch format {

pkg/modules/logging/logging_test.go

@@ -1,347 +0,0 @@
-package logging
-
-import (
-	"fmt"
-	"reflect"
-	"testing"
-
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
-	"go.uber.org/zap/zaptest/observer"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestLogging_Descriptor(t *testing.T) {
-	descriptor := new(Logging).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(Logging))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestLogging_Provision(t *testing.T) {
-	for _, tc := range []struct {
-		scenario           string
-		level              string
-		format             string
-		fieldsPrefix       string
-		expectLevel        string
-		expectFormat       string
-		expectFieldsPrefix string
-	}{
-		{
-			scenario:           "default values",
-			expectLevel:        infoLoggingLevel,
-			expectFormat:       autoLoggingFormat,
-			expectFieldsPrefix: "",
-		},
-		{
-			scenario:           "explicit values",
-			level:              "debug",
-			format:             "json",
-			fieldsPrefix:       "gotenberg",
-			expectLevel:        debugLoggingLevel,
-			expectFormat:       jsonLoggingFormat,
-			expectFieldsPrefix: "gotenberg",
-		},
-		{
-			scenario:           "wrong values", // no validation at this point.
-			level:              "foo",
-			format:             "foo",
-			expectLevel:        "foo",
-			expectFormat:       "foo",
-			expectFieldsPrefix: "",
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			var flags []string
-
-			if tc.level != "" {
-				flags = append(flags, "--log-level", tc.level)
-			}
-
-			if tc.format != "" {
-				flags = append(flags, "--log-format", tc.format)
-			}
-
-			if tc.fieldsPrefix != "" {
-				flags = append(flags, "--log-fields-prefix", tc.fieldsPrefix)
-			}
-
-			logging := new(Logging)
-			fs := logging.Descriptor().FlagSet
-
-			err := fs.Parse(flags)
-			if err != nil {
-				t.Fatalf("expected no error while parsing flags but got: %v", err)
-			}
-
-			ctx := gotenberg.NewContext(gotenberg.ParsedFlags{FlagSet: fs}, nil)
-
-			err = logging.Provision(ctx)
-			if err != nil {
-				t.Fatalf("expected no error while provisioning but got: %v", err)
-			}
-
-			if logging.level != tc.expectLevel {
-				t.Errorf("expected logging level '%s' but got '%s'", tc.expectLevel, logging.level)
-			}
-
-			if logging.format != tc.expectFormat {
-				t.Errorf("expected logging format '%s' but got '%s'", tc.expectFormat, logging.format)
-			}
-
-			if logging.fieldsPrefix != tc.expectFieldsPrefix {
-				t.Errorf("expected logging fields prefix '%s' but got '%s'", tc.expectFieldsPrefix, logging.fieldsPrefix)
-			}
-		})
-	}
-}
-
-func TestLogging_Validate(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		level       string
-		format      string
-		expectError bool
-	}{
-		{
-			scenario:    "invalid level",
-			level:       "foo",
-			expectError: true,
-		},
-		{
-			scenario:    "invalid format",
-			level:       debugLoggingLevel,
-			format:      "foo",
-			expectError: true,
-		},
-		{
-			scenario: "valid level and format",
-			level:    debugLoggingLevel,
-			format:   autoLoggingFormat,
-		},
-	} {
-		logging := new(Logging)
-		logging.level = tc.level
-		logging.format = tc.format
-
-		err := logging.Validate()
-
-		if tc.expectError && err == nil {
-			t.Errorf("%s: expected error but got: %v", tc.scenario, err)
-		}
-
-		if !tc.expectError && err != nil {
-			t.Errorf("%s: expected no error but got: %v", tc.scenario, err)
-		}
-	}
-}
-
-func TestLogging_Logger(t *testing.T) {
-	for _, tc := range []struct {
-		scenario     string
-		level        string
-		format       string
-		fieldsPrefix string
-		expectError  bool
-	}{
-		{
-			scenario:    "invalid level",
-			level:       "foo",
-			expectError: true,
-		},
-		{
-			scenario:    "invalid format",
-			level:       debugLoggingLevel,
-			format:      "foo",
-			expectError: true,
-		},
-		{
-			scenario: "valid level and format",
-			level:    debugLoggingLevel,
-			format:   autoLoggingFormat,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			logging := new(Logging)
-			logging.level = tc.level
-			logging.format = tc.format
-			logging.fieldsPrefix = tc.fieldsPrefix
-
-			_, err := logging.Logger(&gotenberg.ModuleMock{
-				DescriptorMock: func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "mock", New: nil}
-				},
-			})
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-		})
-	}
-}
-
-func TestCustomCore(t *testing.T) {
-	for _, tc := range []struct {
-		scenario     string
-		level        zapcore.Level
-		fieldsPrefix string
-		expectEntry  bool
-	}{
-		{
-			scenario:     "level enabled",
-			level:        zapcore.DebugLevel,
-			fieldsPrefix: "gotenberg",
-			expectEntry:  true,
-		},
-		{
-			scenario:    "no fields prefix",
-			level:       zapcore.DebugLevel,
-			expectEntry: true,
-		},
-		{
-			scenario: "level disabled",
-			level:    zapcore.ErrorLevel,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			core, obsvr := observer.New(tc.level)
-			lgr := zap.New(customCore{
-				Core:         core,
-				fieldsPrefix: tc.fieldsPrefix,
-			}).With(zap.String("a_field", "a value"))
-
-			lgr.Debug("a debug message", zap.String("another_field", "another value"))
-
-			entries := obsvr.TakeAll()
-
-			if tc.expectEntry && len(entries) == 0 {
-				t.Fatal("expected an entry")
-			}
-
-			if !tc.expectEntry && len(entries) != 0 {
-				t.Fatal("expected no entry")
-			}
-
-			var prefix string
-			if tc.fieldsPrefix != "" {
-				prefix = tc.fieldsPrefix + "_"
-			}
-
-			for _, entry := range entries {
-				fields := entry.Context
-
-				if len(fields) != 2 {
-					t.Fatalf("expected 2 fields but got %d", len(fields))
-				}
-
-				if fields[0].Key != fmt.Sprintf("%sa_field", prefix) {
-					t.Errorf("expected 'gotenberg_a_field' but got '%s'", fields[0].Key)
-				}
-
-				if fields[1].Key != fmt.Sprintf("%sanother_field", prefix) {
-					t.Errorf("expected 'gotenberg_another_field' but got '%s'", fields[1].Key)
-				}
-			}
-		})
-	}
-}
-
-func Test_newLogLevel(t *testing.T) {
-	for _, tc := range []struct {
-		scenario       string
-		level          string
-		expectZapLevel zapcore.Level
-		expectError    bool
-	}{
-		{
-			scenario:       "error level",
-			level:          errorLoggingLevel,
-			expectZapLevel: zapcore.ErrorLevel,
-		},
-		{
-			scenario:       "warning level",
-			level:          warnLoggingLevel,
-			expectZapLevel: zapcore.WarnLevel,
-		},
-		{
-			scenario:       "info level",
-			level:          infoLoggingLevel,
-			expectZapLevel: zapcore.InfoLevel,
-		},
-		{
-			scenario:       "debug level",
-			level:          debugLoggingLevel,
-			expectZapLevel: zapcore.DebugLevel,
-		},
-		{
-			scenario:       "invalid level",
-			level:          "foo",
-			expectZapLevel: zapcore.InvalidLevel,
-			expectError:    true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			actual, err := newLogLevel(tc.level)
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectZapLevel != actual {
-				t.Errorf("expected %d level but got %d", tc.expectZapLevel, actual)
-			}
-		})
-	}
-}
-
-func Test_newLogEncoder(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		format      string
-		expectError bool
-	}{
-		{
-			scenario: "auto format",
-			format:   autoLoggingFormat,
-		},
-		{
-			scenario: "text format",
-			format:   textLoggingFormat,
-		},
-		{
-			scenario: "json format",
-			format:   jsonLoggingFormat,
-		},
-		{
-			scenario:    "invalid format",
-			format:      "foo",
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			_, err := newLogEncoder(tc.format)
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-
-			if !tc.expectError && err != nil {
-				t.Errorf("expected no error but got: %v", err)
-			}
-		})
-	}
-}

pkg/modules/pdfcpu/doc.go

@@ -1,7 +1,8 @@
 // Package pdfcpu provides an implementation of the gotenberg.PdfEngine
-// interface using the pdfcpu library. This package allows for:
+// interface using the pdfcpu command-line tool. This package allows for:
 //
 // 1. The merging of PDF files.
+// 2. The splitting of PDF files.
 //
 // See: https://github.com/pdfcpu/pdfcpu.
 package pdfcpu

pkg/modules/pdfcpu/pdfcpu.go

@@ -2,11 +2,15 @@ package pdfcpu
 
 import (
 	"context"
+	"errors"
 	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"sort"
+	"strings"
+	"syscall"
 
-	pdfcpuAPI "github.com/pdfcpu/pdfcpu/pkg/api"
-	pdfcpuLog "github.com/pdfcpu/pdfcpu/pkg/log"
-	pdfcpuConfig "github.com/pdfcpu/pdfcpu/pkg/pdfcpu/model"
 	"go.uber.org/zap"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
@@ -16,10 +20,10 @@ func init() {
 	gotenberg.MustRegisterModule(new(PdfCpu))
 }
 
-// PdfCpu abstracts the pdfcpu library and implements the [gotenberg.PdfEngine]
-// interface.
+// PdfCpu abstracts the CLI tool pdfcpu and implements the
+// [gotenberg.PdfEngine] interface.
 type PdfCpu struct {
-	conf *pdfcpuConfig.Configuration
+	binPath string
 }
 
 // Descriptor returns a [PdfCpu]'s module descriptor.
@@ -32,41 +36,146 @@ func (engine *PdfCpu) Descriptor() gotenberg.ModuleDescriptor {
 
 // Provision sets the engine properties.
 func (engine *PdfCpu) Provision(ctx *gotenberg.Context) error {
-	pdfcpuConfig.ConfigPath = "disable"
-	pdfcpuLog.DisableLoggers()
-	engine.conf = pdfcpuConfig.NewDefaultConfiguration()
+	binPath, ok := os.LookupEnv("PDFCPU_BIN_PATH")
+	if !ok {
+		return errors.New("PDFCPU_BIN_PATH environment variable is not set")
+	}
+
+	engine.binPath = binPath
 
 	return nil
 }
 
+// Validate validates the module properties.
+func (engine *PdfCpu) Validate() error {
+	_, err := os.Stat(engine.binPath)
+	if os.IsNotExist(err) {
+		return fmt.Errorf("pdfcpu binary path does not exist: %w", err)
+	}
+
+	return nil
+}
+
+// Debug returns additional debug data.
+func (engine *PdfCpu) Debug() map[string]interface{} {
+	debug := make(map[string]interface{})
+
+	cmd := exec.Command(engine.binPath, "version") //nolint:gosec
+	cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+	output, err := cmd.Output()
+	if err != nil {
+		debug["version"] = err.Error()
+		return debug
+	}
+
+	debug["version"] = "Unable to determine pdfcpu version"
+
+	lines := strings.Split(string(output), "\n")
+	for _, line := range lines {
+		if strings.HasPrefix(line, "pdfcpu:") {
+			debug["version"] = strings.TrimSpace(strings.TrimPrefix(line, "pdfcpu:"))
+			break
+		}
+	}
+
+	return debug
+}
+
 // Merge combines multiple PDFs into a single PDF.
 func (engine *PdfCpu) Merge(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-	err := pdfcpuAPI.MergeCreateFile(inputPaths, outputPath, false, engine.conf)
+	var args []string
+	args = append(args, "merge", outputPath)
+	args = append(args, inputPaths...)
+
+	cmd, err := gotenberg.CommandContext(ctx, logger, engine.binPath, args...)
+	if err != nil {
+		return fmt.Errorf("create command: %w", err)
+	}
+
+	_, err = cmd.Exec()
 	if err == nil {
 		return nil
 	}
 
-	return fmt.Errorf("merge PDFs with PDFcpu: %w", err)
+	return fmt.Errorf("merge PDFs with pdfcpu: %w", err)
+}
+
+// Split splits a given PDF file.
+func (engine *PdfCpu) Split(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+	var args []string
+
+	switch mode.Mode {
+	case gotenberg.SplitModeIntervals:
+		args = append(args, "split", "-mode", "span", inputPath, outputDirPath, mode.Span)
+	case gotenberg.SplitModePages:
+		if mode.Unify {
+			outputPath := fmt.Sprintf("%s/%s", outputDirPath, filepath.Base(inputPath))
+			args = append(args, "trim", "-pages", mode.Span, inputPath, outputPath)
+			break
+		}
+		args = append(args, "extract", "-mode", "page", "-pages", mode.Span, inputPath, outputDirPath)
+	default:
+		return nil, fmt.Errorf("split PDFs using mode '%s' with pdfcpu: %w", mode.Mode, gotenberg.ErrPdfSplitModeNotSupported)
+	}
+
+	cmd, err := gotenberg.CommandContext(ctx, logger, engine.binPath, args...)
+	if err != nil {
+		return nil, fmt.Errorf("create command: %w", err)
+	}
+
+	_, err = cmd.Exec()
+	if err != nil {
+		return nil, fmt.Errorf("split PDFs with pdfcpu: %w", err)
+	}
+
+	var outputPaths []string
+	err = filepath.Walk(outputDirPath, func(path string, info os.FileInfo, pathErr error) error {
+		if pathErr != nil {
+			return pathErr
+		}
+		if info.IsDir() {
+			return nil
+		}
+		if strings.EqualFold(filepath.Ext(info.Name()), ".pdf") {
+			outputPaths = append(outputPaths, path)
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, fmt.Errorf("walk directory to find resulting PDFs from split with pdfcpu: %w", err)
+	}
+
+	sort.Sort(gotenberg.AlphanumericSort(outputPaths))
+
+	return outputPaths, nil
+}
+
+// Flatten is not available in this implementation.
+func (engine *PdfCpu) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
+	return fmt.Errorf("flatten PDF with pdfcpu: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // Convert is not available in this implementation.
 func (engine *PdfCpu) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-	return fmt.Errorf("convert PDF to '%+v' with PDFcpu: %w", formats, gotenberg.ErrPdfEngineMethodNotSupported)
+	return fmt.Errorf("convert PDF to '%+v' with pdfcpu: %w", formats, gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // ReadMetadata is not available in this implementation.
 func (engine *PdfCpu) ReadMetadata(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-	return nil, fmt.Errorf("read PDF metadata with PDFcpu: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	return nil, fmt.Errorf("read PDF metadata with pdfcpu: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // WriteMetadata is not available in this implementation.
 func (engine *PdfCpu) WriteMetadata(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-	return fmt.Errorf("write PDF metadata with PDFcpu: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	return fmt.Errorf("write PDF metadata with pdfcpu: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // Interface guards.
 var (
 	_ gotenberg.Module      = (*PdfCpu)(nil)
 	_ gotenberg.Provisioner = (*PdfCpu)(nil)
+	_ gotenberg.Validator   = (*PdfCpu)(nil)
+	_ gotenberg.Debuggable  = (*PdfCpu)(nil)
 	_ gotenberg.PdfEngine   = (*PdfCpu)(nil)
 )

pkg/modules/pdfcpu/pdfcpu_test.go

@@ -1,122 +0,0 @@
-package pdfcpu
-
-import (
-	"context"
-	"errors"
-	"os"
-	"reflect"
-	"testing"
-
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestPdfCpu_Descriptor(t *testing.T) {
-	descriptor := new(PdfCpu).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(PdfCpu))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestPdfCpu_Provision(t *testing.T) {
-	engine := new(PdfCpu)
-	ctx := gotenberg.NewContext(gotenberg.ParsedFlags{}, nil)
-
-	err := engine.Provision(ctx)
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestPdfCpu_Merge(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		inputPaths  []string
-		expectError bool
-	}{
-		{
-			scenario: "invalid input path",
-			inputPaths: []string{
-				"foo",
-			},
-			expectError: true,
-		},
-		{
-			scenario: "single file success",
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-			},
-			expectError: false,
-		},
-		{
-			scenario: "many files success",
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-				"/tests/test/testdata/pdfengines/sample2.pdf",
-			},
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(PdfCpu)
-			err := engine.Provision(nil)
-			if err != nil {
-				t.Fatalf("expected error but got: %v", err)
-			}
-
-			fs := gotenberg.NewFileSystem()
-			outputDir, err := fs.MkdirAll()
-			if err != nil {
-				t.Fatalf("expected error but got: %v", err)
-			}
-
-			defer func() {
-				err = os.RemoveAll(fs.WorkingDirPath())
-				if err != nil {
-					t.Fatalf("expected no error while cleaning up but got: %v", err)
-				}
-			}()
-
-			err = engine.Merge(nil, nil, tc.inputPaths, outputDir+"/foo.pdf")
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error but got none")
-			}
-		})
-	}
-}
-
-func TestPdfCpu_Convert(t *testing.T) {
-	mod := new(PdfCpu)
-	err := mod.Convert(context.TODO(), zap.NewNop(), gotenberg.PdfFormats{}, "", "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}
-
-func TestLibreOfficePdfEngine_ReadMetadata(t *testing.T) {
-	engine := new(PdfCpu)
-	_, err := engine.ReadMetadata(context.Background(), zap.NewNop(), "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}
-
-func TestLibreOfficePdfEngine_WriteMetadata(t *testing.T) {
-	engine := new(PdfCpu)
-	err := engine.WriteMetadata(context.Background(), zap.NewNop(), nil, "")
-
-	if !errors.Is(err, gotenberg.ErrPdfEngineMethodNotSupported) {
-		t.Errorf("expected error %v, but got: %v", gotenberg.ErrPdfEngineMethodNotSupported, err)
-	}
-}

pkg/modules/pdfengines/multi.go

@@ -12,12 +12,29 @@ import (
 )
 
 type multiPdfEngines struct {
-	engines []gotenberg.PdfEngine
+	mergeEngines         []gotenberg.PdfEngine
+	splitEngines         []gotenberg.PdfEngine
+	flattenEngines       []gotenberg.PdfEngine
+	convertEngines       []gotenberg.PdfEngine
+	readMetadataEngines  []gotenberg.PdfEngine
+	writeMetadataEngines []gotenberg.PdfEngine
 }
 
-func newMultiPdfEngines(engines ...gotenberg.PdfEngine) *multiPdfEngines {
+func newMultiPdfEngines(
+	mergeEngines,
+	splitEngines,
+	flattenEngines,
+	convertEngines,
+	readMetadataEngines,
+	writeMetadataEngines []gotenberg.PdfEngine,
+) *multiPdfEngines {
 	return &multiPdfEngines{
-		engines: engines,
+		mergeEngines:         mergeEngines,
+		splitEngines:         splitEngines,
+		flattenEngines:       flattenEngines,
+		convertEngines:       convertEngines,
+		readMetadataEngines:  readMetadataEngines,
+		writeMetadataEngines: writeMetadataEngines,
 	}
 }
 
@@ -27,7 +44,7 @@ func (multi *multiPdfEngines) Merge(ctx context.Context, logger *zap.Logger, inp
 	var err error
 	errChan := make(chan error, 1)
 
-	for _, engine := range multi.engines {
+	for _, engine := range multi.mergeEngines {
 		go func(engine gotenberg.PdfEngine) {
 			errChan <- engine.Merge(ctx, logger, inputPaths, outputPath)
 		}(engine)
@@ -46,13 +63,74 @@ func (multi *multiPdfEngines) Merge(ctx context.Context, logger *zap.Logger, inp
 	return fmt.Errorf("merge PDFs with multi PDF engines: %w", err)
 }
 
+type splitResult struct {
+	outputPaths []string
+	err         error
+}
+
+// Split tries to split at intervals a given PDF thanks to its children. If the
+// context is done, it stops and returns an error.
+func (multi *multiPdfEngines) Split(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+	var err error
+	var mu sync.Mutex // to safely append errors.
+
+	for _, engine := range multi.splitEngines {
+		resultChan := make(chan splitResult, 1)
+
+		go func(engine gotenberg.PdfEngine) {
+			outputPaths, err := engine.Split(ctx, logger, mode, inputPath, outputDirPath)
+			resultChan <- splitResult{outputPaths: outputPaths, err: err}
+		}(engine)
+
+		select {
+		case result := <-resultChan:
+			if result.err != nil {
+				mu.Lock()
+				err = multierr.Append(err, result.err)
+				mu.Unlock()
+			} else {
+				return result.outputPaths, nil
+			}
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		}
+	}
+
+	return nil, fmt.Errorf("split PDF with multi PDF engines: %w", err)
+}
+
+// Flatten merges existing annotation appearances with page content, thanks to
+// its children. If the context is done, it stops and returns an error
+func (multi *multiPdfEngines) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
+	var err error
+	errChan := make(chan error, 1)
+
+	for _, engine := range multi.flattenEngines {
+		go func(engine gotenberg.PdfEngine) {
+			errChan <- engine.Flatten(ctx, logger, inputPath)
+		}(engine)
+
+		select {
+		case mergeErr := <-errChan:
+			errored := multierr.AppendInto(&err, mergeErr)
+			if !errored {
+				return nil
+			}
+		case <-ctx.Done():
+			return ctx.Err()
+		}
+	}
+
+	return fmt.Errorf("flatten PDF with multi PDF engines: %w", err)
+}
+
 // Convert converts the given PDF to a specific PDF format. thanks to its
 // children. If the context is done, it stops and returns an error.
 func (multi *multiPdfEngines) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
 	var err error
 	errChan := make(chan error, 1)
 
-	for _, engine := range multi.engines {
+	for _, engine := range multi.convertEngines {
 		go func(engine gotenberg.PdfEngine) {
 			errChan <- engine.Convert(ctx, logger, formats, inputPath, outputPath)
 		}(engine)
@@ -80,16 +158,14 @@ func (multi *multiPdfEngines) ReadMetadata(ctx context.Context, logger *zap.Logg
 	var err error
 	var mu sync.Mutex // to safely append errors.
 
-	resultChan := make(chan readMetadataResult, len(multi.engines))
+	for _, engine := range multi.readMetadataEngines {
+		resultChan := make(chan readMetadataResult, 1)
 
-	for _, engine := range multi.engines {
 		go func(engine gotenberg.PdfEngine) {
 			metadata, err := engine.ReadMetadata(ctx, logger, inputPath)
 			resultChan <- readMetadataResult{metadata: metadata, err: err}
 		}(engine)
-	}
 
-	for range multi.engines {
 		select {
 		case result := <-resultChan:
 			if result.err != nil {
@@ -111,7 +187,7 @@ func (multi *multiPdfEngines) WriteMetadata(ctx context.Context, logger *zap.Log
 	var err error
 	errChan := make(chan error, 1)
 
-	for _, engine := range multi.engines {
+	for _, engine := range multi.writeMetadataEngines {
 		go func(engine gotenberg.PdfEngine) {
 			errChan <- engine.WriteMetadata(ctx, logger, metadata, inputPath)
 		}(engine)

pkg/modules/pdfengines/multi_test.go

@@ -19,59 +19,67 @@ func TestMultiPdfEngines_Merge(t *testing.T) {
 	}{
 		{
 			scenario: "nominal behavior",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-						return nil
+			engine: &multiPdfEngines{
+				mergeEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
+							return nil
+						},
 					},
 				},
-			),
+			},
 			ctx:         context.Background(),
 			expectError: false,
 		},
 		{
 			scenario: "at least one engine does not return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-						return errors.New("foo")
+			engine: &multiPdfEngines{
+				mergeEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
+							return nil
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-						return nil
-					},
-				},
-			),
+			},
 			ctx:         context.Background(),
 			expectError: false,
 		},
 		{
 			scenario: "all engines return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-						return errors.New("foo")
+			engine: &multiPdfEngines{
+				mergeEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
+							return errors.New("foo")
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-						return errors.New("foo")
-					},
-				},
-			),
+			},
 			ctx:         context.Background(),
 			expectError: true,
 		},
 		{
 			scenario: "context expired",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
-						return nil
+			engine: &multiPdfEngines{
+				mergeEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						MergeMock: func(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
+							return nil
+						},
 					},
 				},
-			),
+			},
 			ctx: func() context.Context {
 				ctx, cancel := context.WithCancel(context.Background())
 				cancel()
@@ -95,6 +103,188 @@ func TestMultiPdfEngines_Merge(t *testing.T) {
 	}
 }
 
+func TestMultiPdfEngines_Split(t *testing.T) {
+	for _, tc := range []struct {
+		scenario    string
+		engine      *multiPdfEngines
+		ctx         context.Context
+		expectError bool
+	}{
+		{
+			scenario: "nominal behavior",
+			engine: &multiPdfEngines{
+				splitEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+							return nil, nil
+						},
+					},
+				},
+			},
+			ctx: context.Background(),
+		},
+		{
+			scenario: "at least one engine does not return an error",
+			engine: &multiPdfEngines{
+				splitEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+							return nil, errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+							return nil, nil
+						},
+					},
+				},
+			},
+			ctx: context.Background(),
+		},
+		{
+			scenario: "all engines return an error",
+			engine: &multiPdfEngines{
+				splitEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+							return nil, errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+							return nil, errors.New("foo")
+						},
+					},
+				},
+			},
+			ctx:         context.Background(),
+			expectError: true,
+		},
+		{
+			scenario: "context expired",
+			engine: &multiPdfEngines{
+				splitEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
+							return nil, nil
+						},
+					},
+				},
+			},
+			ctx: func() context.Context {
+				ctx, cancel := context.WithCancel(context.Background())
+				cancel()
+
+				return ctx
+			}(),
+			expectError: true,
+		},
+	} {
+		t.Run(tc.scenario, func(t *testing.T) {
+			_, err := tc.engine.Split(tc.ctx, zap.NewNop(), gotenberg.SplitMode{}, "", "")
+
+			if !tc.expectError && err != nil {
+				t.Fatalf("expected no error but got: %v", err)
+			}
+
+			if tc.expectError && err == nil {
+				t.Fatal("expected error but got none")
+			}
+		})
+	}
+}
+
+func TestMultiPdfEngines_Flatten(t *testing.T) {
+	for _, tc := range []struct {
+		scenario    string
+		engine      *multiPdfEngines
+		ctx         context.Context
+		expectError bool
+	}{
+		{
+			scenario: "nominal behavior",
+			engine: &multiPdfEngines{
+				flattenEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						FlattenMock: func(ctx context.Context, logger *zap.Logger, inputPath string) error {
+							return nil
+						},
+					},
+				},
+			},
+			ctx: context.Background(),
+		},
+		{
+			scenario: "at least one engine does not return an error",
+			engine: &multiPdfEngines{
+				flattenEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						FlattenMock: func(ctx context.Context, logger *zap.Logger, inputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						FlattenMock: func(ctx context.Context, logger *zap.Logger, inputPath string) error {
+							return nil
+						},
+					},
+				},
+			},
+			ctx: context.Background(),
+		},
+		{
+			scenario: "all engines return an error",
+			engine: &multiPdfEngines{
+				flattenEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						FlattenMock: func(ctx context.Context, logger *zap.Logger, inputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						FlattenMock: func(ctx context.Context, logger *zap.Logger, inputPath string) error {
+							return errors.New("foo")
+						},
+					},
+				},
+			},
+			ctx:         context.Background(),
+			expectError: true,
+		},
+		{
+			scenario: "context expired",
+			engine: &multiPdfEngines{
+				flattenEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						FlattenMock: func(ctx context.Context, logger *zap.Logger, inputPath string) error {
+							return nil
+						},
+					},
+				},
+			},
+			ctx: func() context.Context {
+				ctx, cancel := context.WithCancel(context.Background())
+				cancel()
+
+				return ctx
+			}(),
+			expectError: true,
+		},
+	} {
+		t.Run(tc.scenario, func(t *testing.T) {
+			err := tc.engine.Flatten(tc.ctx, zap.NewNop(), "")
+
+			if !tc.expectError && err != nil {
+				t.Fatalf("expected no error but got: %v", err)
+			}
+
+			if tc.expectError && err == nil {
+				t.Fatal("expected error but got none")
+			}
+		})
+	}
+}
+
 func TestMultiPdfEngines_Convert(t *testing.T) {
 	for _, tc := range []struct {
 		scenario    string
@@ -104,57 +294,65 @@ func TestMultiPdfEngines_Convert(t *testing.T) {
 	}{
 		{
 			scenario: "nominal behavior",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-						return nil
+			engine: &multiPdfEngines{
+				convertEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
+							return nil
+						},
 					},
 				},
-			),
+			},
 			ctx: context.Background(),
 		},
 		{
 			scenario: "at least one engine does not return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-						return errors.New("foo")
+			engine: &multiPdfEngines{
+				convertEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
+							return nil
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-						return nil
-					},
-				},
-			),
+			},
 			ctx: context.Background(),
 		},
 		{
 			scenario: "all engines return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-						return errors.New("foo")
+			engine: &multiPdfEngines{
+				convertEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
+							return errors.New("foo")
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-						return errors.New("foo")
-					},
-				},
-			),
+			},
 			ctx:         context.Background(),
 			expectError: true,
 		},
 		{
 			scenario: "context expired",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-						return nil
+			engine: &multiPdfEngines{
+				convertEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
+							return nil
+						},
 					},
 				},
-			),
+			},
 			ctx: func() context.Context {
 				ctx, cancel := context.WithCancel(context.Background())
 				cancel()
@@ -187,57 +385,65 @@ func TestMultiPdfEngines_ReadMetadata(t *testing.T) {
 	}{
 		{
 			scenario: "nominal behavior",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-						return make(map[string]interface{}), nil
+			engine: &multiPdfEngines{
+				readMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
+							return make(map[string]interface{}), nil
+						},
 					},
 				},
-			),
+			},
 			ctx: context.Background(),
 		},
 		{
 			scenario: "at least one engine does not return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-						return nil, errors.New("foo")
+			engine: &multiPdfEngines{
+				readMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
+							return nil, errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
+							return make(map[string]interface{}), nil
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-						return make(map[string]interface{}), nil
-					},
-				},
-			),
+			},
 			ctx: context.Background(),
 		},
 		{
 			scenario: "all engines return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-						return nil, errors.New("foo")
+			engine: &multiPdfEngines{
+				readMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
+							return nil, errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
+							return nil, errors.New("foo")
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-						return nil, errors.New("foo")
-					},
-				},
-			),
+			},
 			ctx:         context.Background(),
 			expectError: true,
 		},
 		{
 			scenario: "context expired",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
-						return make(map[string]interface{}), nil
+			engine: &multiPdfEngines{
+				readMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
+							return make(map[string]interface{}), nil
+						},
 					},
 				},
-			),
+			},
 			ctx: func() context.Context {
 				ctx, cancel := context.WithCancel(context.Background())
 				cancel()
@@ -270,57 +476,65 @@ func TestMultiPdfEngines_WriteMetadata(t *testing.T) {
 	}{
 		{
 			scenario: "nominal behavior",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-						return nil
+			engine: &multiPdfEngines{
+				writeMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
+							return nil
+						},
 					},
 				},
-			),
+			},
 			ctx: context.Background(),
 		},
 		{
 			scenario: "at least one engine does not return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-						return errors.New("foo")
+			engine: &multiPdfEngines{
+				writeMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
+							return nil
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-						return nil
-					},
-				},
-			),
+			},
 			ctx: context.Background(),
 		},
 		{
 			scenario: "all engines return an error",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-						return errors.New("foo")
+			engine: &multiPdfEngines{
+				writeMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
+							return errors.New("foo")
+						},
+					},
+					&gotenberg.PdfEngineMock{
+						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
+							return errors.New("foo")
+						},
 					},
 				},
-				&gotenberg.PdfEngineMock{
-					WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-						return errors.New("foo")
-					},
-				},
-			),
+			},
 			ctx:         context.Background(),
 			expectError: true,
 		},
 		{
 			scenario: "context expired",
-			engine: newMultiPdfEngines(
-				&gotenberg.PdfEngineMock{
-					WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
-						return nil
+			engine: &multiPdfEngines{
+				writeMetadataEngines: []gotenberg.PdfEngine{
+					&gotenberg.PdfEngineMock{
+						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
+							return nil
+						},
 					},
 				},
-			),
+			},
 			ctx: func() context.Context {
 				ctx, cancel := context.WithCancel(context.Background())
 				cancel()

pkg/modules/pdfengines/pdfengines.go

@@ -27,9 +27,14 @@ func init() {
 // the [api.Router] interface to expose relevant PDF processing routes if
 // enabled.
 type PdfEngines struct {
-	names         []string
-	engines       []gotenberg.PdfEngine
-	disableRoutes bool
+	mergeNames         []string
+	splitNames         []string
+	flattenNames       []string
+	convertNames       []string
+	readMetadataNames  []string
+	writeMetadataNames []string
+	engines            []gotenberg.PdfEngine
+	disableRoutes      bool
 }
 
 // Descriptor returns a PdfEngines' module descriptor.
@@ -38,9 +43,21 @@ func (mod *PdfEngines) Descriptor() gotenberg.ModuleDescriptor {
 		ID: "pdfengines",
 		FlagSet: func() *flag.FlagSet {
 			fs := flag.NewFlagSet("pdfengines", flag.ExitOnError)
-			fs.StringSlice("pdfengines-engines", make([]string, 0), "Set the PDF engines and their order - all by default")
+			fs.StringSlice("pdfengines-merge-engines", []string{"qpdf", "pdfcpu", "pdftk"}, "Set the PDF engines and their order for the merge feature - empty means all")
+			fs.StringSlice("pdfengines-split-engines", []string{"pdfcpu", "qpdf", "pdftk"}, "Set the PDF engines and their order for the split feature - empty means all")
+			fs.StringSlice("pdfengines-flatten-engines", []string{"qpdf"}, "Set the PDF engines and their order for the flatten feature - empty means all")
+			fs.StringSlice("pdfengines-convert-engines", []string{"libreoffice-pdfengine"}, "Set the PDF engines and their order for the convert feature - empty means all")
+			fs.StringSlice("pdfengines-read-metadata-engines", []string{"exiftool"}, "Set the PDF engines and their order for the read metadata feature - empty means all")
+			fs.StringSlice("pdfengines-write-metadata-engines", []string{"exiftool"}, "Set the PDF engines and their order for the write metadata feature - empty means all")
 			fs.Bool("pdfengines-disable-routes", false, "Disable the routes")
 
+			// Deprecated flags.
+			fs.StringSlice("pdfengines-engines", make([]string, 0), "Set the default PDF engines and their default order - all by default")
+			err := fs.MarkDeprecated("pdfengines-engines", "use other flags for a more granular selection of PDF engines per method")
+			if err != nil {
+				panic(err)
+			}
+
 			return fs
 		}(),
 		New: func() gotenberg.Module { return new(PdfEngines) },
@@ -51,7 +68,12 @@ func (mod *PdfEngines) Descriptor() gotenberg.ModuleDescriptor {
 // selected by the user thanks to the "engines" flag.
 func (mod *PdfEngines) Provision(ctx *gotenberg.Context) error {
 	flags := ctx.ParsedFlags()
-	names := flags.MustStringSlice("pdfengines-engines")
+	mergeNames := flags.MustStringSlice("pdfengines-merge-engines")
+	splitNames := flags.MustStringSlice("pdfengines-split-engines")
+	flattenNames := flags.MustStringSlice("pdfengines-flatten-engines")
+	convertNames := flags.MustStringSlice("pdfengines-convert-engines")
+	readMetadataNames := flags.MustStringSlice("pdfengines-read-metadata-engines")
+	writeMetadataNames := flags.MustStringSlice("pdfengines-write-metadata-engines")
 	mod.disableRoutes = flags.MustBool("pdfengines-disable-routes")
 
 	engines, err := ctx.Modules(new(gotenberg.PdfEngine))
@@ -65,26 +87,47 @@ func (mod *PdfEngines) Provision(ctx *gotenberg.Context) error {
 		mod.engines[i] = engine.(gotenberg.PdfEngine)
 	}
 
-	if len(names) > 0 {
-		// Selection from user.
-		mod.names = names
-
-		// Example in case of deprecated module name.
-		//for i, name := range names {
-		//	if name == "unoconv-pdfengine" || name == "uno-pdfengine" {
-		//		logger.Warn(fmt.Sprintf("%s is deprecated; prefer libreoffice-pdfengine instead", name))
-		//		mod.names[i] = "libreoffice-pdfengine"
-		//	}
-		//}
-
-		return nil
+	defaultNames := make([]string, len(mod.engines))
+	for i, engine := range mod.engines {
+		defaultNames[i] = engine.(gotenberg.Module).Descriptor().ID
 	}
 
-	// No selection from user, use all PDF engines available.
-	mod.names = make([]string, len(mod.engines))
+	// Example in case of deprecated module name.
+	//for i, name := range defaultNames {
+	//	if name == "unoconv-pdfengine" || name == "uno-pdfengine" {
+	//		logger.Warn(fmt.Sprintf("%s is deprecated; prefer libreoffice-pdfengine instead", name))
+	//		mod.defaultNames[i] = "libreoffice-pdfengine"
+	//	}
+	//}
 
-	for i, engine := range mod.engines {
-		mod.names[i] = engine.(gotenberg.Module).Descriptor().ID
+	mod.mergeNames = defaultNames
+	if len(mergeNames) > 0 {
+		mod.mergeNames = mergeNames
+	}
+
+	mod.splitNames = defaultNames
+	if len(splitNames) > 0 {
+		mod.splitNames = splitNames
+	}
+
+	mod.flattenNames = defaultNames
+	if len(flattenNames) > 0 {
+		mod.flattenNames = flattenNames
+	}
+
+	mod.convertNames = defaultNames
+	if len(convertNames) > 0 {
+		mod.convertNames = convertNames
+	}
+
+	mod.readMetadataNames = defaultNames
+	if len(readMetadataNames) > 0 {
+		mod.readMetadataNames = readMetadataNames
+	}
+
+	mod.writeMetadataNames = defaultNames
+	if len(writeMetadataNames) > 0 {
+		mod.writeMetadataNames = writeMetadataNames
 	}
 
 	return nil
@@ -105,22 +148,42 @@ func (mod *PdfEngines) Validate() error {
 	}
 
 	nonExistingEngines := make([]string, 0)
+	findNonExistingEngines := func(names []string) {
+		for _, name := range names {
+			engineExists := false
 
-	for _, name := range mod.names {
-		engineExists := false
+			for _, engine := range mod.engines {
+				if name == engine.(gotenberg.Module).Descriptor().ID {
+					engineExists = true
+					break
+				}
+			}
 
-		for _, engine := range mod.engines {
-			if name == engine.(gotenberg.Module).Descriptor().ID {
-				engineExists = true
-				break
+			if engineExists {
+				continue
+			}
+
+			alreadyInSlice := false
+			for _, engine := range nonExistingEngines {
+				if engine == name {
+					alreadyInSlice = true
+					break
+				}
+			}
+
+			if !alreadyInSlice {
+				nonExistingEngines = append(nonExistingEngines, name)
 			}
 		}
-
-		if !engineExists {
-			nonExistingEngines = append(nonExistingEngines, name)
-		}
 	}
 
+	findNonExistingEngines(mod.mergeNames)
+	findNonExistingEngines(mod.splitNames)
+	findNonExistingEngines(mod.flattenNames)
+	findNonExistingEngines(mod.convertNames)
+	findNonExistingEngines(mod.readMetadataNames)
+	findNonExistingEngines(mod.writeMetadataNames)
+
 	if len(nonExistingEngines) == 0 {
 		return nil
 	}
@@ -132,24 +195,39 @@ func (mod *PdfEngines) Validate() error {
 // modules.
 func (mod *PdfEngines) SystemMessages() []string {
 	return []string{
-		strings.Join(mod.names[:], " "),
+		fmt.Sprintf("merge engines - %s", strings.Join(mod.mergeNames[:], " ")),
+		fmt.Sprintf("split engines - %s", strings.Join(mod.splitNames[:], " ")),
+		fmt.Sprintf("flatten engines - %s", strings.Join(mod.flattenNames[:], " ")),
+		fmt.Sprintf("convert engines - %s", strings.Join(mod.convertNames[:], " ")),
+		fmt.Sprintf("read metadata engines - %s", strings.Join(mod.readMetadataNames[:], " ")),
+		fmt.Sprintf("write metadata engines - %s", strings.Join(mod.writeMetadataNames[:], " ")),
 	}
 }
 
 // PdfEngine returns a [gotenberg.PdfEngine].
 func (mod *PdfEngines) PdfEngine() (gotenberg.PdfEngine, error) {
-	engines := make([]gotenberg.PdfEngine, len(mod.names))
-
-	for i, name := range mod.names {
-		for _, engine := range mod.engines {
-			if name == engine.(gotenberg.Module).Descriptor().ID {
-				engines[i] = engine
-				break
+	engines := func(names []string) []gotenberg.PdfEngine {
+		list := make([]gotenberg.PdfEngine, len(names))
+		for i, name := range names {
+			for _, engine := range mod.engines {
+				if name == engine.(gotenberg.Module).Descriptor().ID {
+					list[i] = engine
+					break
+				}
 			}
 		}
+
+		return list
 	}
 
-	return newMultiPdfEngines(engines...), nil
+	return newMultiPdfEngines(
+		engines(mod.mergeNames),
+		engines(mod.splitNames),
+		engines(mod.flattenNames),
+		engines(mod.convertNames),
+		engines(mod.readMetadataNames),
+		engines(mod.writeMetadataNames),
+	), nil
 }
 
 // Routes returns the HTTP routes.
@@ -167,6 +245,8 @@ func (mod *PdfEngines) Routes() ([]api.Route, error) {
 
 	return []api.Route{
 		mergeRoute(engine),
+		splitRoute(engine),
+		flattenRoute(engine),
 		convertRoute(engine),
 		readMetadataRoute(engine),
 		writeMetadataRoute(engine),