chore(deps): update Go dependencies

* fix: correctly map GCP structured log keys

* Update pkg/modules/logging/logging.go

Co-authored-by: Julien Neuhart <neuhart.julien@gmail.com>

---------

Co-authored-by: Julien Neuhart <neuhart.julien@gmail.com>

.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/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

@@ -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_REGISTRY=thecodingmachine

.github/workflows/continuous_integration.yml

@@ -1,95 +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: '1.23'
-          cache: false
-      - name: Checkout source code
-        uses: actions/checkout@v4
-      - name: Run linters
-        uses: golangci/golangci-lint-action@v6
-        with:
-          version: v1.61.0
-
-  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
-      - name: Upload to Codecov
-        uses: codecov/codecov-action@v4
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          verbose: true
-
-  snapshot_release:
-    if: github.event_name == 'pull_request'
-    needs:
-      - tests
-    name: Snapshot release
-    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: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build and push snapshot Docker image (linux/amd64)
-        run: make release GOTENBERG_VERSION=${{ github.head_ref }} DOCKER_REPOSITORY=snapshot LINUX_AMD64_RELEASE=true
-
-  edge_release:
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-    needs:
-      - tests
-    name: Edge release
-    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_REGISTRY=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

@@ -3,3 +3,4 @@
 .idea
 .vscode
 .DS_Store
+/node_modules/

.golangci.yml

@@ -1,60 +1,65 @@
-linters-settings:
-  gci:
-    sections:
-      - standard
-      - default
-      - prefix(github.com/gotenberg/gotenberg/v8)
-    skip-generated: true
-    custom-order: true
-  # Until https://github.com/securego/gosec/issues/1187 is resolved.
-  gosec:
-    excludes:
-      - G115
-
+version: "2"
+run:
+  issues-exit-code: 1
+  tests: false
 linters:
-  disable-all: true
+  default: none
   enable:
     - asasalint
     - asciicheck
     - bidichk
     - bodyclose
+    - copyloopvar
     - decorder
     - dogsled
     - dupl
     - dupword
     - durationcheck
-    - copyloopvar
     - errcheck
     - errname
     - exhaustive
-    - gci
-    - gofmt
-    - goimports
-    - gofumpt
     - gosec
-    - gosimple
     - govet
-    - ineffassign
     - importas
+    - ineffassign
     - misspell
     - prealloc
     - promlinter
-    #- sloglint
     - staticcheck
-    - tenv
     - testableexamples
     - tparallel
-    - typecheck
     - unconvert
     - unused
+    - usetesting
     - wastedassign
     - whitespace
-
-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

@@ -1,20 +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, $$2}'
-
-.PHONY: it
-it: build build-tests ## Initialize the development environment
-
-GOLANG_VERSION=1.23
-DOCKER_REGISTRY=gotenberg
-DOCKER_REPOSITORY=gotenberg
-GOTENBERG_VERSION=snapshot
-GOTENBERG_USER_GID=1001
-GOTENBERG_USER_UID=1001
-NOTO_COLOR_EMOJI_VERSION=v2.047 # See https://github.com/googlefonts/noto-emoji/releases.
-PDFTK_VERSION=v3.3.3 # See https://gitlab.com/pdftk-java/pdftk/-/releases - Binary package.
-PDFCPU_VERSION=v0.8.1 # See https://github.com/pdfcpu/pdfcpu/releases.
-GOLANGCI_LINT_VERSION=v1.61.0 # See https://github.com/golangci/golangci-lint/releases.
+	@grep -hE '^[A-Za-z0-9_ \-]*?:.*##.*$$' $(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
@@ -27,7 +15,7 @@ build: ## Build the Gotenberg's Docker image
 	--build-arg PDFTK_VERSION=$(PDFTK_VERSION) \
 	--build-arg PDFCPU_VERSION=$(PDFCPU_VERSION) \
 	-t $(DOCKER_REGISTRY)/$(DOCKER_REPOSITORY):$(GOTENBERG_VERSION) \
-	-f build/Dockerfile .
+	-f $(DOCKERFILE) $(DOCKER_BUILD_CONTEXT)
 
 GOTENBERG_GRACEFUL_SHUTDOWN_DURATION=30s
 API_PORT=3000
@@ -36,7 +24,7 @@ API_BIND_IP=
 API_START_TIMEOUT=30s
 API_TIMEOUT=30s
 API_BODY_LIMIT=
-API_ROOT_PATH=/
+API_ROOT_PATH="/"
 API_TRACE_HEADER=Gotenberg-Trace
 API_ENABLE_BASIC_AUTH=false
 GOTENBERG_API_BASIC_AUTH_USERNAME=
@@ -46,7 +34,8 @@ 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
@@ -71,9 +60,10 @@ 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
@@ -115,6 +105,7 @@ run: ## Start a Gotenberg container
 	--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=$(CHROMIUM_MAX_QUEUE_SIZE) \
@@ -140,9 +131,10 @@ run: ## Start a Gotenberg container
 	--log-level=$(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) \
@@ -161,58 +153,44 @@ 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=$(GOLANG_VERSION) \
-	--build-arg DOCKER_REGISTRY=$(DOCKER_REGISTRY) \
-	--build-arg DOCKER_REPOSITORY=$(DOCKER_REPOSITORY) \
-	--build-arg GOTENBERG_VERSION=$(GOTENBERG_VERSION) \
-	--build-arg GOLANGCI_LINT_VERSION=$(GOLANGCI_LINT_VERSION) \
-	-t $(DOCKER_REGISTRY)/$(DOCKER_REPOSITORY):$(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 \
-	$(DOCKER_REGISTRY)/$(DOCKER_REPOSITORY):$(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 \
-	$(DOCKER_REGISTRY)/$(DOCKER_REPOSITORY):$(GOTENBERG_VERSION)-tests \
-	gotest
+.PHONY: test-integration
+test-integration: ## Run integration tests
+	go test -timeout 20m -tags=integration -v github.com/gotenberg/gotenberg/v8/test/integration -args \
+	--gotenberg-docker-repository=$(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
-
-LINUX_AMD64_RELEASE=false
-
-.PHONY: release
-release: ## Build the Gotenberg's Docker image and 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) \
-	$(PDFCPU_VERSION) \
-	$(DOCKER_REGISTRY) \
-	$(DOCKER_REPOSITORY) \
-	$(LINUX_AMD64_RELEASE)
-

README.md

@@ -1,21 +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>
-        <br>
-        <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://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>
-        <a href="https://codecov.io/gh/gotenberg/gotenberg/branch/main/graph/badge.svg"><img alt="Code coverage" src="https://codecov.io/gh/gotenberg/gotenberg/branch/main/graph/badge.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
@@ -45,6 +46,9 @@ Head to the [documentation](https://gotenberg.dev/docs/getting-started/introduct
     <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>
 
 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

@@ -61,10 +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="$GOTENBERG_VERSION" \
       org.opencontainers.image.authors="Julien Neuhart <neuhart.julien@gmail.com>" \
       org.opencontainers.image.documentation="https://gotenberg.dev" \
@@ -82,6 +81,7 @@ RUN \
     # Install system dependencies required for the next instructions or debugging.
     # Note: tini is a helper for reaping zombie processes.
     apt-get update -qq &&\
+    apt-get upgrade -yqq &&\
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends curl gnupg tini python3 default-jre-headless &&\
     # Cleanup.
     # Note: the Debian image does automatically a clean after each install thanks to a hook.
@@ -96,6 +96,7 @@ RUN \
     # https://help.accusoft.com/PrizmDoc/v12.1/HTML/Installing_Asian_Fonts_on_Ubuntu_and_Debian.html.
     curl -o ./ttf-mscorefonts-installer_3.8.1_all.deb http://httpredir.debian.org/debian/pool/contrib/m/msttcorefonts/ttf-mscorefonts-installer_3.8.1_all.deb &&\
     apt-get update -qq &&\
+    apt-get upgrade -yqq &&\
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends \
     ./ttf-mscorefonts-installer_3.8.1_all.deb \
     culmus \
@@ -145,27 +146,18 @@ RUN \
     # Install either Google Chrome stable on amd64 architecture or
     # Chromium on other architectures.
     # See https://github.com/gotenberg/gotenberg/issues/328.
-    # FIXME:
-    # armhf is currently not working with the latest version of Chromium.
-    # See: https://github.com/gotenberg/gotenberg/issues/709.
     /bin/bash -c \
     'set -e &&\
     if [[ "$(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_${TMP_CHOMIUM_VERSION_ARMHF}_armhf.deb" &&\
-      DEBIAN_FRONTEND=noninteractive apt-get purge -y -qq devscripts &&\
-      rm -rf ./binary-chromium-common/* ./binary-chromium/*; \
     else \
       apt-get update -qq &&\
+      apt-get upgrade -yqq &&\
       DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends chromium; \
     fi' &&\
     # Verify installation.
@@ -177,8 +169,9 @@ RUN \
     # Install LibreOffice & unoconverter.
     echo "deb http://deb.debian.org/debian bookworm-backports main" >> /etc/apt/sources.list &&\
     apt-get update -qq &&\
+    apt-get upgrade -yqq &&\
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends -t bookworm-backports libreoffice &&\
-    curl -Ls https://raw.githubusercontent.com/gotenberg/unoconverter/v0.0.1/unoconv -o /usr/bin/unoconverter &&\
+    curl -Ls https://raw.githubusercontent.com/gotenberg/unoconverter/v0.1.1/unoconv -o /usr/bin/unoconverter &&\
     chmod +x /usr/bin/unoconverter &&\
     # unoconverter will look for the Python binary, which has to be at version 3.
     ln -s /usr/bin/python3 /usr/bin/python &&\
@@ -196,6 +189,7 @@ RUN \
     echo '#!/bin/bash\n\nexec java -jar /usr/bin/pdftk-all.jar "$@"' > /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 &&\

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
 -------------------------------------------------------
 `
@@ -50,14 +51,42 @@ 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.
@@ -108,6 +137,9 @@ func Run() {
 		}(l.(gotenberg.SystemLogger))
 	}
 
+	// 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

@@ -1,72 +1,127 @@
 module github.com/gotenberg/gotenberg/v8
 
-go 1.23.0
+go 1.24.0
 
 require (
 	github.com/alexliesenfeld/health v0.8.0
 	github.com/andybalholm/brotli v1.1.1 // indirect
 	github.com/barasher/go-exiftool v1.10.0
-	github.com/chromedp/cdproto v0.0.0-20250101192427-60a0ca35cb84
-	github.com/chromedp/chromedp v0.11.2
-	github.com/golang/snappy v0.0.4 // indirect
+	github.com/chromedp/cdproto v0.0.0-20250319231242-a755498943c8
+	github.com/chromedp/chromedp v0.13.3
 	github.com/google/uuid v1.6.0
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hashicorp/go-retryablehttp v0.7.7
-	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/klauspost/pgzip v1.2.6 // indirect
 	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 v1.0.27
-	github.com/nwaples/rardecode v1.1.3 // indirect
 	github.com/pierrec/lz4/v4 v4.1.22 // indirect
-	github.com/prometheus/client_golang v1.20.5
+	github.com/prometheus/client_golang v1.21.1
 	github.com/russross/blackfriday/v2 v2.1.0
-	github.com/spf13/pflag v1.0.5
+	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 v0.31.0 // indirect
-	golang.org/x/net v0.33.0
-	golang.org/x/sync v0.10.0
-	golang.org/x/sys v0.28.0 // indirect
-	golang.org/x/term v0.27.0
-	golang.org/x/text v0.21.0
+	golang.org/x/crypto v0.36.0 // indirect
+	golang.org/x/net v0.38.0
+	golang.org/x/sync v0.12.0
+	golang.org/x/sys v0.31.0 // indirect
+	golang.org/x/term v0.30.0
+	golang.org/x/text v0.23.0
 )
 
 require (
-	github.com/dlclark/regexp2 v1.11.4
-	github.com/shirou/gopsutil/v4 v4.24.12
+	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 v0.1.0
+	github.com/shirou/gopsutil/v4 v4.25.2
+	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 v0.2.2 // indirect
 	github.com/aymerick/douceur v0.2.0 // indirect
 	github.com/beorn7/perks v1.0.1 // 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/dsnet/compress v0.0.2-0.20210315054119-f66993602bf5 // indirect
-	github.com/ebitengine/purego v0.8.1 // 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 v1.4.0 // 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/josharian/intern v1.0.0 // indirect
-	github.com/lufia/plan9stats v0.0.0-20240909124753-873cd0166683 // indirect
-	github.com/mailru/easyjson v0.9.0 // indirect
-	github.com/mattn/go-colorable v0.1.13 // 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 v1.8.9 // indirect
+	github.com/mattn/go-colorable v0.1.14 // 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 v0.3.0 // 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/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.61.0 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
-	github.com/tklauser/go-sysconf v0.3.14 // indirect
-	github.com/tklauser/numcpus v0.9.0 // 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
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
-	golang.org/x/time v0.8.0 // indirect
-	google.golang.org/protobuf v1.36.1 // 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

@@ -1,6 +1,34 @@
+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=
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+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=
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+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 v0.2.2 h1:8QeCbIi1Z9U5MgoDARJR1ClbBo9RD46SmVy+dl0woCk=
+github.com/STARRY-S/zip v0.2.2/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 v1.1.1 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=
@@ -9,26 +37,76 @@ github.com/barasher/go-exiftool v1.10.0 h1:f5JY5jc42M7tzR6tbL9508S2IXdIcG9QyieEX
 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/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=
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+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
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-github.com/chromedp/cdproto v0.0.0-20250101192427-60a0ca35cb84 h1:NXWP4iSVz4BPGk7Z/fPXL0c44hiWbrbyhBY0LwKKZnY=
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+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

package-lock.json

@@ -0,0 +1,180 @@
+{
+  "name": "gotenberg",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "devDependencies": {
+        "prettier": "3.5.2",
+        "prettier-plugin-gherkin": "^3.1.1",
+        "prettier-plugin-sh": "^0.15.0"
+      }
+    },
+    "node_modules/@cucumber/gherkin": {
+      "version": "27.0.0",
+      "resolved": "https://registry.npmjs.org/@cucumber/gherkin/-/gherkin-27.0.0.tgz",
+      "integrity": "sha512-j5rCsjqzRiC3iVTier3sa0kzyNbkcAmF7xr7jKnyO7qDeK3Z8Ye1P3KSVpeQRMY+KCDJ3WbTDdyxH0FwfA/fIw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@cucumber/messages": ">=19.1.4 <=22"
+      }
+    },
+    "node_modules/@cucumber/gherkin/node_modules/@cucumber/messages": {
+      "version": "22.0.0",
+      "resolved": "https://registry.npmjs.org/@cucumber/messages/-/messages-22.0.0.tgz",
+      "integrity": "sha512-EuaUtYte9ilkxcKmfqGF9pJsHRUU0jwie5ukuZ/1NPTuHS1LxHPsGEODK17RPRbZHOFhqybNzG2rHAwThxEymg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/uuid": "9.0.1",
+        "class-transformer": "0.5.1",
+        "reflect-metadata": "0.1.13",
+        "uuid": "9.0.0"
+      }
+    },
+    "node_modules/@cucumber/gherkin/node_modules/@types/uuid": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-9.0.1.tgz",
+      "integrity": "sha512-rFT3ak0/2trgvp4yYZo5iKFEPsET7vKydKF+VRCxlQ9bpheehyAJH89dAkaLEq/j/RZXJIqcgsmPJKUP1Z28HA==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@cucumber/gherkin/node_modules/uuid": {
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.0.tgz",
+      "integrity": "sha512-MXcSTerfPa4uqyzStbRoTgt5XIe3x5+42+q1sDuy3R5MDk66URdLMOZe5aPX/SQd+kuYAh0FdP/pO28IkQyTeg==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
+    "node_modules/@cucumber/messages": {
+      "version": "23.0.0",
+      "resolved": "https://registry.npmjs.org/@cucumber/messages/-/messages-23.0.0.tgz",
+      "integrity": "sha512-2ZWKNnikNMBnle3P3cgy+fgzhABrY4oBbiWp9wcI8ANdT4LlYRN6jQ6j/9CQGTDGRfkyRtr/5VkYq7q24XCsuA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/uuid": "9.0.6",
+        "class-transformer": "0.5.1",
+        "reflect-metadata": "0.1.13",
+        "uuid": "9.0.1"
+      }
+    },
+    "node_modules/@types/uuid": {
+      "version": "9.0.6",
+      "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-9.0.6.tgz",
+      "integrity": "sha512-BT2Krtx4xaO6iwzwMFUYvWBWkV2pr37zD68Vmp1CDV196MzczBRxuEpD6Pr395HAgebC/co7hOphs53r8V7jew==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/mvdan-sh": {
+      "version": "0.10.1",
+      "resolved": "https://registry.npmjs.org/mvdan-sh/-/mvdan-sh-0.10.1.tgz",
+      "integrity": "sha512-kMbrH0EObaKmK3nVRKUIIya1dpASHIEusM13S4V1ViHFuxuNxCo+arxoa6j/dbV22YBGjl7UKJm9QQKJ2Crzhg==",
+      "dev": true,
+      "license": "BSD-3-Clause"
+    },
+    "node_modules/prettier": {
+      "version": "3.5.2",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.5.2.tgz",
+      "integrity": "sha512-lc6npv5PH7hVqozBR7lkBNOGXV9vMwROAPlumdBkX0wTbbzPu/U1hk5yL8p2pt4Xoc+2mkT8t/sow2YrV/M5qg==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
+    "node_modules/prettier-plugin-gherkin": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/prettier-plugin-gherkin/-/prettier-plugin-gherkin-3.1.1.tgz",
+      "integrity": "sha512-cCfjqKMdR2a8jOf8yKg32iUfRq0Dfmx+K2qTMOD/ixJJq0Rp7QS8BaoABWC7CDGXbvOkVeWOvzhxWvYcEbjglw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@cucumber/gherkin": "^27.0.0",
+        "@cucumber/messages": "^23.0.0",
+        "prettier": "^3.0.0"
+      }
+    },
+    "node_modules/prettier-plugin-sh": {
+      "version": "0.15.0",
+      "resolved": "https://registry.npmjs.org/prettier-plugin-sh/-/prettier-plugin-sh-0.15.0.tgz",
+      "integrity": "sha512-U0PikJr/yr2bzzARl43qI0mApBj0C1xdAfA04AZa6LnvIKawXHhuy2fFo6LNA7weRzGlAiNbaEFfKMFo0nZr/A==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mvdan-sh": "^0.10.1",
+        "sh-syntax": "^0.4.2"
+      },
+      "engines": {
+        "node": ">=16.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/unts"
+      },
+      "peerDependencies": {
+        "prettier": "^3.0.3"
+      }
+    },
+    "node_modules/reflect-metadata": {
+      "version": "0.1.13",
+      "resolved": "https://registry.npmjs.org/reflect-metadata/-/reflect-metadata-0.1.13.tgz",
+      "integrity": "sha512-Ts1Y/anZELhSsjMcU605fU9RE4Oi3p5ORujwbIKXfWa+0Zxs510Qrmrce5/Jowq3cHSZSJqBjypxmHarc+vEWg==",
+      "dev": true,
+      "license": "Apache-2.0"
+    },
+    "node_modules/sh-syntax": {
+      "version": "0.4.2",
+      "resolved": "https://registry.npmjs.org/sh-syntax/-/sh-syntax-0.4.2.tgz",
+      "integrity": "sha512-/l2UZ5fhGZLVZa16XQM9/Vq/hezGGbdHeVEA01uWjOL1+7Ek/gt6FquW0iKKws4a9AYPYvlz6RyVvjh3JxOteg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.6.2"
+      },
+      "engines": {
+        "node": ">=16.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/unts"
+      }
+    },
+    "node_modules/tslib": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
+      "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "dev": true,
+      "license": "0BSD"
+    },
+    "node_modules/uuid": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.1.tgz",
+      "integrity": "sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==",
+      "dev": true,
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    }
+  }
+}

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_test.go

@@ -1,306 +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:             Command(zap.NewNop(), "echo", "Hello", "World"),
-			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/fs.go

@@ -3,8 +3,6 @@ package gotenberg
 import (
 	"fmt"
 	"os"
-	"path/filepath"
-	"strings"
 
 	"github.com/google/uuid"
 )
@@ -86,25 +84,6 @@ func (fs *FileSystem) MkdirAll() (string, error) {
 	return path, nil
 }
 
-// WalkDir walks through the root level of a directory and returns a list of
-// files paths that match the specified file extension.
-func WalkDir(dir, ext string) ([]string, error) {
-	var files []string
-	err := filepath.Walk(dir, 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()), ext) {
-			files = append(files, path)
-		}
-		return nil
-	})
-	return files, err
-}
-
 // Interface guards.
 var (
 	_ MkdirAll   = (*OsMkdirAll)(nil)

pkg/gotenberg/fs_test.go

@@ -1,222 +0,0 @@
-package gotenberg
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"reflect"
-	"strings"
-	"testing"
-
-	"github.com/google/uuid"
-)
-
-func TestOsMkdirAll_MkdirAll(t *testing.T) {
-	dirPath, err := NewFileSystem(new(OsMkdirAll)).MkdirAll()
-	if err != nil {
-		t.Fatalf("create working directory: %v", err)
-	}
-
-	err = os.RemoveAll(dirPath)
-	if err != nil {
-		t.Fatalf("remove working directory: %v", err)
-	}
-}
-
-func TestOsPathRename_Rename(t *testing.T) {
-	dirPath, err := NewFileSystem(new(OsMkdirAll)).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 TestFileSystem_WorkingDir(t *testing.T) {
-	fs := NewFileSystem(new(MkdirAllMock))
-	dirName := fs.WorkingDir()
-
-	if dirName == "" {
-		t.Error("expected directory name but got empty string")
-	}
-}
-
-func TestFileSystem_WorkingDirPath(t *testing.T) {
-	fs := NewFileSystem(new(MkdirAllMock))
-	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(new(MkdirAllMock))
-	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) {
-	for _, tc := range []struct {
-		scenario    string
-		mkdirAll    MkdirAll
-		expectError bool
-	}{
-		{
-			scenario: "error",
-			mkdirAll: &MkdirAllMock{
-				MkdirAllMock: func(path string, perm os.FileMode) error {
-					return errors.New("foo")
-				},
-			},
-			expectError: true,
-		},
-		{
-			scenario: "success",
-			mkdirAll: &MkdirAllMock{
-				MkdirAllMock: func(path string, perm os.FileMode) error {
-					return nil
-				},
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			fs := NewFileSystem(tc.mkdirAll)
-
-			_, err := fs.MkdirAll()
-
-			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 TestWalkDir(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		dir         string
-		ext         string
-		expectError bool
-		expectFiles []string
-	}{
-		{
-			scenario:    "directory does not exist",
-			dir:         uuid.NewString(),
-			ext:         ".pdf",
-			expectError: true,
-		},
-		{
-			scenario: "find PDF files",
-			dir: func() string {
-				path := fmt.Sprintf("%s/a_directory", os.TempDir())
-
-				err := os.MkdirAll(path, 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/a_foo_file.pdf", path), []byte{1}, 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/a_bar_file.PDF", path), []byte{1}, 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				err = os.WriteFile(fmt.Sprintf("%s/a_baz_file.txt", path), []byte{1}, 0o755)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return path
-			}(),
-			ext:         ".pdf",
-			expectError: false,
-			expectFiles: []string{"/tmp/a_directory/a_bar_file.PDF", "/tmp/a_directory/a_foo_file.pdf"},
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			defer func() {
-				err := os.RemoveAll(tc.dir)
-				if err != nil {
-					t.Fatalf("expected no error while cleaning up but got: %v", err)
-				}
-			}()
-
-			files, err := WalkDir(tc.dir, tc.ext)
-
-			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 && err != nil {
-				return
-			}
-
-			if !reflect.DeepEqual(files, tc.expectFiles) {
-				t.Errorf("expected files %+v, but got %+v", tc.expectFiles, files)
-			}
-		})
-	}
-}

pkg/gotenberg/gc_test.go

@@ -3,6 +3,7 @@ package gotenberg
 import (
 	"fmt"
 	"os"
+	"path"
 	"testing"
 	"time"
 
@@ -31,7 +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)
@@ -51,7 +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"},

pkg/gotenberg/logging_test.go

@@ -1,23 +0,0 @@
-package gotenberg
-
-import (
-	"testing"
-
-	"go.uber.org/zap"
-)
-
-func TestLeveledLogger_Error(t *testing.T) {
-	NewLeveledLogger(zap.NewNop()).Error("foo")
-}
-
-func TestLeveledLogger_Warn(t *testing.T) {
-	NewLeveledLogger(zap.NewNop()).Warn("foo")
-}
-
-func TestLeveledLogger_Info(t *testing.T) {
-	NewLeveledLogger(zap.NewNop()).Info("foo")
-}
-
-func TestLeveledLogger_Debug(t *testing.T) {
-	NewLeveledLogger(zap.NewNop()).Debug("foo")
-}

pkg/gotenberg/mocks.go

@@ -34,10 +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
@@ -51,6 +62,10 @@ func (engine *PdfEngineMock) Split(ctx context.Context, logger *zap.Logger, mode
 	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)
 }

pkg/gotenberg/mocks_test.go

@@ -1,241 +0,0 @@
-package gotenberg
-
-import (
-	"context"
-	"os"
-	"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
-		},
-		SplitMock: func(ctx context.Context, logger *zap.Logger, mode SplitMode, inputPath, outputDirPath string) ([]string, error) {
-			return nil, 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.Split(context.Background(), zap.NewNop(), SplitMode{}, "", "")
-	if err != nil {
-		t.Errorf("expected no error from PdfEngineMock.Split, 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 TestMkdirAllMock(t *testing.T) {
-	mock := &MkdirAllMock{
-		MkdirAllMock: func(dir string, perm os.FileMode) error {
-			return nil
-		},
-	}
-
-	err := mock.MkdirAll("/foo", 0o755)
-	if err != nil {
-		t.Errorf("expected no error from MkdirAllMock.MkdirAll, 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

@@ -88,6 +88,8 @@ 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.
@@ -96,6 +98,12 @@ type PdfEngine interface {
 	// 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

@@ -7,7 +7,8 @@ import (
 )
 
 // 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 +22,20 @@ 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 +43,52 @@ 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) {
+	// 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/modules/api/api.go

@@ -42,6 +42,7 @@ type Api struct {
 	basicAuthPassword         string
 	downloadFromCfg           downloadFromConfig
 	disableHealthCheckLogging bool
+	enableDebugRoute          bool
 
 	routes              []Route
 	externalMiddlewares []Middleware
@@ -187,6 +188,7 @@ func (a *Api) Descriptor() gotenberg.ModuleDescriptor {
 			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) },
@@ -212,6 +214,7 @@ func (a *Api) Provision(ctx *gotenberg.Context) error {
 		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")
@@ -365,9 +368,10 @@ func (a *Api) Validate() error {
 		return err
 	}
 
-	routesMap := make(map[string]string, len(a.routes)+2)
+	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 == "" {
@@ -456,14 +460,22 @@ 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
-
-		// Basic auth?
-		if a.basicAuthUsername != "" {
-			middlewares = append(middlewares, basicAuthMiddleware(a.basicAuthUsername, a.basicAuthPassword))
-		}
+		middlewares = append(middlewares, securityMiddleware)
 
 		if route.IsMultipart {
 			middlewares = append(middlewares, contextMiddleware(a.fs, a.timeout, a.bodyLimit, a.downloadFromCfg))
@@ -483,6 +495,24 @@ func (a *Api) Start() error {
 		)
 	}
 
+	// 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...)
@@ -503,14 +533,26 @@ func (a *Api) Start() error {
 		hardTimeoutMiddleware(hardTimeout),
 	)
 
-	// ...and the version route.
+	// ...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)
 	defer cancel()

pkg/modules/api/context.go

@@ -1,7 +1,6 @@
 package api
 
 import (
-	"compress/flate"
 	"context"
 	"encoding/json"
 	"errors"
@@ -19,7 +18,7 @@ import (
 	"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"
@@ -468,22 +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)
 	}

pkg/modules/api/context_test.go

@@ -1,836 +0,0 @@
-package api
-
-import (
-	"bytes"
-	"context"
-	"errors"
-	"mime/multipart"
-	"net/http"
-	"net/http/httptest"
-	"os"
-	"reflect"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/dlclark/regexp2"
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestNewContext(t *testing.T) {
-	defaultAllowList, err := regexp2.Compile("", 0)
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-	defaultDenyList, err := regexp2.Compile("", 0)
-	if err != nil {
-		t.Fatalf("expected no error but got: %v", err)
-	}
-	defaultDownloadFromCfg := downloadFromConfig{
-		allowList: defaultAllowList,
-		denyList:  defaultDenyList,
-		maxRetry:  1,
-		disable:   false,
-	}
-
-	for _, tc := range []struct {
-		scenario         string
-		request          *http.Request
-		bodyLimit        int64
-		downloadFromCfg  downloadFromConfig
-		downloadFromSrv  *echo.Echo
-		expectContext    *Context
-		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: "request entity too large: form values",
-			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("key", "value")
-				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
-			}(),
-			bodyLimit:        1,
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusRequestEntityTooLarge,
-		},
-		{
-			scenario: "request entity too large: downloadFrom",
-			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("downloadFrom", `[{"url":"http://localhost:80/"}]`)
-				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
-			}(),
-			bodyLimit: 45, // form values = 44 bytes.
-			downloadFromSrv: func() *echo.Echo {
-				srv := echo.New()
-				srv.HideBanner = true
-				srv.GET("/", func(c echo.Context) error {
-					c.Response().Header().Set(echo.HeaderContentDisposition, `attachment; filename="bar.txt"`)
-					c.Response().Header().Set(echo.HeaderContentType, "text/plain")
-					return c.String(http.StatusOK, http.StatusText(http.StatusOK))
-				})
-				return srv
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusRequestEntityTooLarge,
-		},
-		{
-			scenario: "request entity too large: form files",
-			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)
-					}
-				}()
-				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
-			}(),
-			bodyLimit:        1,
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusRequestEntityTooLarge,
-		},
-		{
-			scenario: "invalid downloadFrom form field: cannot unmarshal",
-			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("downloadFrom", "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
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid downloadFrom form field: no URL",
-			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("downloadFrom", `[{}]`)
-				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
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid downloadFrom form field: filtered URL",
-			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("downloadFrom", `[{"url":"https://foo.bar"}]`)
-				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
-			}(),
-			downloadFromCfg: func() downloadFromConfig {
-				denyList, err := regexp2.Compile("https://foo.bar", 0)
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return downloadFromConfig{allowList: defaultAllowList, denyList: denyList, maxRetry: 1, disable: false}
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "invalid downloadFrom form field: unreachable URL",
-			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("downloadFrom", `[{"url":"http://localhost:80/"}]`)
-				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
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid downloadFrom form field: invalid status code",
-			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("downloadFrom", `[{"url":"http://localhost:80/"}]`)
-				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
-			}(),
-			downloadFromSrv: func() *echo.Echo {
-				srv := echo.New()
-				srv.HideBanner = true
-				srv.GET("/", func(c echo.Context) error {
-					return c.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
-				})
-				return srv
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid downloadFrom form field: no 'Content-Disposition' header",
-			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("downloadFrom", `[{"url":"http://localhost:80/"}]`)
-				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
-			}(),
-			downloadFromSrv: func() *echo.Echo {
-				srv := echo.New()
-				srv.HideBanner = true
-				srv.GET("/", func(c echo.Context) error {
-					return c.String(http.StatusOK, http.StatusText(http.StatusOK))
-				})
-				return srv
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid downloadFrom form field: malformed 'Content-Disposition' header",
-			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("downloadFrom", `[{"url":"http://localhost:80/"}]`)
-				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
-			}(),
-			downloadFromSrv: func() *echo.Echo {
-				srv := echo.New()
-				srv.HideBanner = true
-				srv.GET("/", func(c echo.Context) error {
-					c.Response().Header().Set(echo.HeaderContentDisposition, ";;")
-					return c.String(http.StatusOK, http.StatusText(http.StatusOK))
-				})
-				return srv
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid downloadFrom form field: no filename parameter in 'Content-Disposition' header",
-			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("downloadFrom", `[{"url":"http://localhost:80/"}]`)
-				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
-			}(),
-			downloadFromSrv: func() *echo.Echo {
-				srv := echo.New()
-				srv.HideBanner = true
-				srv.GET("/", func(c echo.Context) error {
-					c.Response().Header().Set(echo.HeaderContentDisposition, "inline;")
-					return c.String(http.StatusOK, http.StatusText(http.StatusOK))
-				})
-				return srv
-			}(),
-			downloadFromCfg:  defaultDownloadFromCfg,
-			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)
-				}
-				err = writer.WriteField("downloadFrom", `[{"url":"http://localhost:80/","extraHttpHeaders":{"X-Foo":"Bar"}}]`)
-				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
-			}(),
-			downloadFromSrv: func() *echo.Echo {
-				srv := echo.New()
-				srv.HideBanner = true
-				srv.GET("/", func(c echo.Context) error {
-					if c.Request().Header.Get("User-Agent") != "Gotenberg" {
-						t.Fatalf("expected 'Gotenberg' from header 'User-Agent', but got '%s'", c.Request().Header.Get("User-Agent"))
-					}
-					if c.Request().Header.Get("X-Foo") != "Bar" {
-						t.Fatalf("expected 'Bar' from header 'X-Foo', but got '%s'", c.Request().Header.Get("X-Foo"))
-					}
-					if c.Request().Header.Get("Gotenberg-Trace") != "123" {
-						t.Fatalf("expected '123' from header 'Gotenberg-Trace', but got '%s'", c.Request().Header.Get("Gotenberg-Trace"))
-					}
-					c.Response().Header().Set(echo.HeaderContentDisposition, `attachment; filename="bar.txt"`)
-					c.Response().Header().Set(echo.HeaderContentType, "text/plain")
-					return c.String(http.StatusOK, http.StatusText(http.StatusOK))
-				})
-				return srv
-			}(),
-			downloadFromCfg: defaultDownloadFromCfg,
-			expectContext: &Context{
-				values: map[string][]string{
-					"foo": {"foo"},
-					"downloadFrom": {
-						`[{"url":"http://localhost:80/","extraHttpHeaders":{"X-Foo":"Bar"}}]`,
-					},
-				},
-				files: map[string]string{
-					"foo.txt": "foo.txt",
-					"bar.txt": "bar.txt", // downloadFrom.
-				},
-			},
-			expectError:     false,
-			expectHttpError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			if tc.downloadFromSrv != nil {
-				go func() {
-					err := tc.downloadFromSrv.Start(":80")
-					if !errors.Is(err, http.ErrServerClosed) {
-						t.Error(err)
-						return
-					}
-				}()
-				defer func() {
-					err := tc.downloadFromSrv.Shutdown(context.TODO())
-					if err != nil {
-						t.Error(err)
-					}
-				}()
-			}
-
-			handler := func(c echo.Context) error {
-				ctx, cancel, err := newContext(c, zap.NewNop(), gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll)), time.Duration(10)*time.Second, tc.bodyLimit, tc.downloadFromCfg, "Gotenberg-Trace", "123")
-				defer cancel()
-				// Context already cancelled.
-				defer cancel()
-
-				if err != nil {
-					return err
-				}
-
-				if tc.expectContext != nil {
-					if !reflect.DeepEqual(tc.expectContext.values, ctx.values) {
-						t.Fatalf("expected context.values to be %v but got %v", tc.expectContext.values, ctx.values)
-					}
-					if len(tc.expectContext.files) != len(ctx.files) {
-						t.Fatalf("expected context.files to contain %d items but got %d", len(tc.expectContext.files), len(ctx.files))
-					}
-					for key, value := range tc.expectContext.files {
-						if !strings.HasSuffix(ctx.files[key], value) {
-							t.Fatalf("expected context.files to contain '%s' but got '%s'", value, ctx.files[key])
-						}
-					}
-				}
-
-				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_CreateSubDirectory(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         *Context
-		expectError bool
-	}{
-		{
-			scenario: "failure",
-			ctx: &Context{mkdirAll: &gotenberg.MkdirAllMock{MkdirAllMock: func(path string, perm os.FileMode) error {
-				return errors.New("cannot rename")
-			}}},
-			expectError: true,
-		},
-		{
-			scenario: "success",
-			ctx: &Context{mkdirAll: &gotenberg.MkdirAllMock{MkdirAllMock: func(path string, perm os.FileMode) error {
-				return nil
-			}}},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			tc.ctx.logger = zap.NewNop()
-			_, err := tc.ctx.CreateSubDirectory("foo")
-
-			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_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) {
-			tc.ctx.logger = zap.NewNop()
-			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(new(gotenberg.OsMkdirAll))
-			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

@@ -161,9 +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, ""),
 					"/",
@@ -177,6 +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)
 
@@ -212,9 +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

pkg/modules/api/middlewares_test.go

@@ -1,584 +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.ErrPdfSplitModeNotSupported,
-			expectStatus:  http.StatusBadRequest,
-			expectMessage: "At least one PDF engine cannot process the requested PDF split mode, while others may have failed to split due to different issues",
-		},
-		{
-			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 TestBasicAuthMiddleware(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		request     *http.Request
-		username    string
-		password    string
-		expectError bool
-	}{
-		{
-			scenario: "invalid basic auth",
-			request: func() *http.Request {
-				req := httptest.NewRequest(http.MethodGet, "/", nil)
-				req.SetBasicAuth("invalid", "invalid")
-				return req
-			}(),
-			username:    "foo",
-			password:    "bar",
-			expectError: true,
-		},
-		{
-			scenario: "valid basic auth",
-			request: func() *http.Request {
-				req := httptest.NewRequest(http.MethodGet, "/", nil)
-				req.SetBasicAuth("foo", "bar")
-				return req
-			}(),
-			username:    "foo",
-			password:    "bar",
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			recorder := httptest.NewRecorder()
-			srv := echo.New()
-			srv.HideBanner = true
-			srv.HidePort = true
-			c := srv.NewContext(tc.request, recorder)
-			err := basicAuthMiddleware(tc.username, tc.password)(func(c echo.Context) error {
-				return nil
-			})(c)
-			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 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("traceHeader", "Gotenberg-Trace")
-		c.Set("trace", "foo")
-		c.Set("startTime", time.Now())
-
-		err := contextMiddleware(gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll)), time.Duration(10)*time.Second, 0, downloadFromConfig{})(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 +83,7 @@ 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].
@@ -91,7 +91,7 @@ func (ctx *ContextMock) SetEchoContext(c echo.Context) {
 //	ctx := &api.ContextMock{Context: &api.Context{}}
 //	ctx.SetMkdirAll(mkdirAll)
 func (ctx *ContextMock) SetMkdirAll(mkdirAll gotenberg.MkdirAll) {
-	ctx.Context.mkdirAll = mkdirAll
+	ctx.mkdirAll = mkdirAll
 }
 
 // SetPathRename sets the [gotenberg.PathRename].
@@ -99,7 +99,7 @@ func (ctx *ContextMock) SetMkdirAll(mkdirAll gotenberg.MkdirAll) {
 //	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

@@ -1,193 +0,0 @@
-package api
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/alexliesenfeld/health"
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-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_SetMkdirAll(t *testing.T) {
-	mock := ContextMock{&Context{}}
-
-	expect := new(gotenberg.OsMkdirAll)
-	mock.SetMkdirAll(expect)
-
-	actual := mock.mkdirAll
-
-	if actual != expect {
-		t.Errorf("expected %v but got %v", expect, actual)
-	}
-}
-
-func TestContextMock_SetPathRename(t *testing.T) {
-	mock := ContextMock{&Context{}}
-
-	expect := new(gotenberg.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/chromium.go

@@ -5,6 +5,9 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
+	"strings"
+	"syscall"
 	"time"
 
 	"github.com/alexliesenfeld/health"
@@ -352,7 +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")
@@ -484,6 +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{
@@ -593,6 +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

@@ -1,589 +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 := DefaultOptions()
-	notExpect := Options{}
-
-	if reflect.DeepEqual(actual, notExpect) {
-		t.Errorf("expected %v and got identical %v", actual, notExpect)
-	}
-}
-
-func TestDefaultPdfOptions(t *testing.T) {
-	actual := DefaultPdfOptions()
-	notExpect := PdfOptions{}
-
-	if reflect.DeepEqual(actual, notExpect) {
-		t.Errorf("expected %v and got identical %v", actual, notExpect)
-	}
-}
-
-func TestDefaultScreenshotOptions(t *testing.T) {
-	actual := DefaultScreenshotOptions()
-	notExpect := ScreenshotOptions{}
-
-	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/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/exiftool/exiftool.go

@@ -5,7 +5,10 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
 	"reflect"
+	"strings"
+	"syscall"
 
 	"github.com/barasher/go-exiftool"
 	"go.uber.org/zap"
@@ -53,6 +56,23 @@ 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)
@@ -63,6 +83,11 @@ func (engine *ExifTool) Split(ctx context.Context, logger *zap.Logger, mode gote
 	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)
@@ -156,5 +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

@@ -1,362 +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_Split(t *testing.T) {
-	engine := new(ExifTool)
-	_, err := engine.Split(context.Background(), zap.NewNop(), gotenberg.SplitMode{}, "", "")
-
-	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 (not string array)",
-			createCopy: true,
-			inputPath:  "/tests/test/testdata/pdfengines/sample1.pdf",
-			metadata: map[string]interface{}{
-				"Unsupported": []interface{}{
-					"foo",
-					1,
-				},
-			},
-			expectError:   true,
-			expectedError: gotenberg.ErrPdfEngineMetadataValueNotSupported,
-		},
-		{
-			scenario:   "gotenberg.ErrPdfEngineMetadataValueNotSupported (default)",
-			createCopy: true,
-			inputPath:  "/tests/test/testdata/pdfengines/sample1.pdf",
-			metadata: map[string]interface{}{
-				"Unsupported": map[string]interface{}{},
-			},
-			expectError:   true,
-			expectedError: gotenberg.ErrPdfEngineMetadataValueNotSupported,
-		},
-		{
-			scenario:   "success (interface array to string array)",
-			createCopy: true,
-			inputPath:  "/tests/test/testdata/pdfengines/sample1.pdf",
-			metadata: map[string]interface{}{
-				"Keywords": []interface{}{
-					"first",
-					"second",
-				},
-			},
-			expectMetadata: map[string]interface{}{
-				"Keywords": []interface{}{
-					"first",
-					"second",
-				},
-			},
-			expectError: false,
-		},
-		{
-			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(new(gotenberg.OsMkdirAll))
-				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"
@@ -59,6 +62,11 @@ type Options struct {
 	// PageRanges allows to select the pages to convert.
 	PageRanges string
 
+	// 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
@@ -149,6 +157,7 @@ func DefaultOptions() Options {
 		Password:                        "",
 		Landscape:                       false,
 		PageRanges:                      "",
+		UpdateIndexes:                   true,
 		ExportFormFields:                true,
 		AllowDuplicateFieldNames:        false,
 		ExportBookmarks:                 true,
@@ -305,6 +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{
@@ -536,6 +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

@@ -1,474 +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 TestDefaultOptions(t *testing.T) {
-	actual := DefaultOptions()
-	notExpect := Options{}
-
-	if reflect.DeepEqual(actual, notExpect) {
-		t.Errorf("expected %v and got identical %v", actual, notExpect)
-	}
-}
-
-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,
-		},
-		{
-			scenario: "ErrCoreDumped",
-			libreOffice: &libreOfficeMock{pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
-				return ErrCoreDumped
-			}},
-			expectError: false,
-		},
-	} {
-		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

@@ -275,10 +275,15 @@ func (p *libreOfficeProcess) pdf(ctx context.Context, logger *zap.Logger, inputP
 		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.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))

pkg/modules/libreoffice/api/libreoffice_test.go

@@ -1,699 +0,0 @@
-package api
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"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(new(gotenberg.OsMkdirAll)),
-			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(new(gotenberg.OsMkdirAll)),
-			options:       Options{PdfFormats: gotenberg.PdfFormats{PdfA: "foo"}},
-			cancelledCtx:  false,
-			start:         false,
-			expectError:   true,
-			expectedError: ErrInvalidPdfFormats,
-		},
-		{
-			scenario: "ErrUnoException",
-			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(new(gotenberg.OsMkdirAll))
-
-				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:  false,
-			start:         true,
-			expectError:   true,
-			expectedError: ErrUnoException,
-		},
-		{
-			scenario: "ErrRuntimeException",
-			libreOffice: newLibreOfficeProcess(
-				libreOfficeArguments{
-					binPath:      os.Getenv("LIBREOFFICE_BIN_PATH"),
-					unoBinPath:   os.Getenv("UNOCONVERTER_BIN_PATH"),
-					startTimeout: 5 * time.Second,
-				},
-			),
-			options: Options{Password: "foo"},
-			fs: func() *gotenberg.FileSystem {
-				fs := gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll))
-
-				err := os.MkdirAll(fs.WorkingDirPath(), 0o755)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				in, err := os.Open("/tests/test/testdata/libreoffice/protected.docx")
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				defer func() {
-					err := in.Close()
-					if err != nil {
-						t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-					}
-				}()
-
-				out, err := os.Create(fmt.Sprintf("%s/protected.docx", fs.WorkingDirPath()))
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				defer func() {
-					err := out.Close()
-					if err != nil {
-						t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-					}
-				}()
-
-				_, err = io.Copy(out, in)
-				if err != nil {
-					t.Fatalf(fmt.Sprintf("expected no error but got: %v", err))
-				}
-
-				return fs
-			}(),
-			cancelledCtx:  false,
-			start:         true,
-			expectError:   true,
-			expectedError: ErrRuntimeException,
-		},
-		{
-			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(new(gotenberg.OsMkdirAll))
-
-				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(new(gotenberg.OsMkdirAll))
-
-				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 (not 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(new(gotenberg.OsMkdirAll))
-
-				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
-			}(),
-			options: Options{
-				Password:                        "", // Ok, the only exception in this list.
-				Landscape:                       true,
-				PageRanges:                      "1",
-				ExportFormFields:                false,
-				AllowDuplicateFieldNames:        true,
-				ExportBookmarks:                 false,
-				ExportBookmarksToPdfDestination: true,
-				ExportPlaceholders:              true,
-				ExportNotes:                     true,
-				ExportNotesPages:                true,
-				ExportOnlyNotesPages:            true,
-				ExportNotesInMargin:             true,
-				ConvertOooTargetToPdfTarget:     true,
-				ExportLinksRelativeFsys:         true,
-				ExportHiddenSlides:              true,
-				SkipEmptyPages:                  true,
-				AddOriginalDocumentAsStream:     true,
-				SinglePageSheets:                true,
-				LosslessImageCompression:        true,
-				Quality:                         100,
-				ReduceImageResolution:           true,
-				MaxImageResolution:              600,
-			},
-			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(new(gotenberg.OsMkdirAll))
-
-				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(new(gotenberg.OsMkdirAll))
-
-				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(new(gotenberg.OsMkdirAll))
-
-				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(new(gotenberg.OsMkdirAll))
-
-				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(new(gotenberg.OsMkdirAll))
-
-				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(new(gotenberg.OsMkdirAll))
-
-				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_test.go

@@ -1,94 +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) {
-	for _, tc := range []struct {
-		scenario    string
-		mock        *libreOfficeMock
-		expectError bool
-	}{
-		{
-			scenario: "success",
-			mock: &libreOfficeMock{
-				pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
-					return nil
-				},
-			},
-			expectError: false,
-		},
-		{
-			scenario: "ErrCoreDumped (first call)",
-			mock: &libreOfficeMock{
-				pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
-					return ErrCoreDumped
-				},
-			},
-			expectError: true,
-		},
-		{
-			scenario: "ErrCoreDumped (second call)",
-			mock: func() *libreOfficeMock {
-				m := &libreOfficeMock{
-					pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
-						return ErrCoreDumped
-					},
-				}
-				m.pdf(context.Background(), zap.NewNop(), "", "", Options{})
-				return m
-			}(),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			err := tc.mock.pdf(context.Background(), zap.NewNop(), "", "", Options{})
-
-			if !tc.expectError && err != nil {
-				t.Fatalf("expected no error from libreOfficeMock.pdf but got: %v", err)
-			}
-
-			if tc.expectError && err == nil {
-				t.Fatal("expected error from libreOfficeMock.pdf but got none")
-			}
-		})
-	}
-}

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

@@ -56,6 +56,11 @@ func (engine *LibreOfficePdfEngine) Split(ctx context.Context, logger *zap.Logge
 	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]

pkg/modules/libreoffice/pdfengine/pdfengine_test.go

@@ -1,201 +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_Split(t *testing.T) {
-	engine := new(LibreOfficePdfEngine)
-	_, err := engine.Split(context.Background(), zap.NewNop(), gotenberg.SplitMode{}, "", "")
-
-	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
-		expectedError error
-	}{
-		{
-			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: "ErrInvalidPdfFormats",
-			api: &api.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options api.Options) error {
-					return api.ErrInvalidPdfFormats
-				},
-			},
-			expectError:   true,
-			expectedError: gotenberg.ErrPdfFormatNotSupported,
-		},
-		{
-			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")
-			}
-
-			if tc.expectedError != nil && !errors.Is(err, tc.expectedError) {
-				t.Fatalf("expected error %v but got: %v", tc.expectedError, err)
-			}
-		})
-	}
-}
-
-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

@@ -1,7 +1,6 @@
 package libreoffice
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
@@ -39,6 +38,7 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				password                        string
 				landscape                       bool
 				nativePageRanges                string
+				updateIndexes                   bool
 				exportFormFields                bool
 				allowDuplicateFieldNames        bool
 				exportBookmarks                 bool
@@ -60,6 +60,7 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				maxImageResolution              int
 				nativePdfFormats                bool
 				merge                           bool
+				flatten                         bool
 			)
 
 			err := form.
@@ -67,6 +68,7 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				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).
@@ -126,15 +128,7 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				}).
 				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)
-						}
-					}
-					return nil
-				}).
+				Bool("flatten", &flatten, false).
 				Validate()
 			if err != nil {
 				return fmt.Errorf("validate form data: %w", err)
@@ -147,6 +141,7 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 					Password:                        password,
 					Landscape:                       landscape,
 					PageRanges:                      nativePageRanges,
+					UpdateIndexes:                   updateIndexes,
 					ExportFormFields:                exportFormFields,
 					AllowDuplicateFieldNames:        allowDuplicateFieldNames,
 					ExportBookmarks:                 exportBookmarks,
@@ -261,6 +256,13 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				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 {

pkg/modules/libreoffice/routes_test.go

@@ -1,773 +0,0 @@
-package libreoffice
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"net/http"
-	"os"
-	"path/filepath"
-	"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 quality form field (not an integer)",
-			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{
-					"quality": {
-						"foo",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{ExtensionsMock: func() []string {
-				return []string{".docx"}
-			}},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "invalid quality form field (< 1)",
-			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{
-					"quality": {
-						"0",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{ExtensionsMock: func() []string {
-				return []string{".docx"}
-			}},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "invalid quality form field (> 100)",
-			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{
-					"quality": {
-						"101",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{ExtensionsMock: func() []string {
-				return []string{".docx"}
-			}},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "invalid maxImageResolution form field (not an integer)",
-			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{
-					"maxImageResolution": {
-						"foo",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{ExtensionsMock: func() []string {
-				return []string{".docx"}
-			}},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "invalid maxImageResolution form field (not in range)",
-			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{
-					"maxImageResolution": {
-						"1",
-					},
-				})
-				return ctx
-			}(),
-			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: "ErrUnoException",
-			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{
-					"nativePageRanges": {
-						"foo",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return libreofficeapi.ErrUnoException
-				},
-				ExtensionsMock: func() []string {
-					return []string{".docx"}
-				},
-			},
-			expectError:            true,
-			expectHttpError:        true,
-			expectHttpStatus:       http.StatusBadRequest,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario: "ErrRuntimeException",
-			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{
-					"password": {
-						"invalid",
-					},
-				})
-				return ctx
-			}(),
-			libreOffice: &libreofficeapi.ApiMock{
-				PdfMock: func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options libreofficeapi.Options) error {
-					return libreofficeapi.ErrRuntimeException
-				},
-				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 split 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{
-					"splitMode": {
-						gotenberg.SplitModeIntervals,
-					},
-					"splitSpan": {
-						"1",
-					},
-				})
-				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{
-				SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
-					return nil, 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 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{
-					"quality": {
-						"100",
-					},
-					"maxImageResolution": {
-						"1200",
-					},
-					"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,
-		},
-		{
-			scenario: "success with split (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",
-				})
-				ctx.SetValues(map[string][]string{
-					"splitMode": {
-						gotenberg.SplitModeIntervals,
-					},
-					"splitSpan": {
-						"1",
-					},
-				})
-				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 nil
-				},
-				SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
-					inputPathNoExt := inputPath[:len(inputPath)-len(filepath.Ext(inputPath))]
-					filenameNoExt := filepath.Base(inputPathNoExt)
-					return []string{
-						fmt.Sprintf(
-							"%s/%s_%d.pdf",
-							outputDirPath, filenameNoExt, 0,
-						),
-						fmt.Sprintf(
-							"%s/%s_%d.pdf",
-							outputDirPath, filenameNoExt, 1,
-						),
-					}, nil
-				},
-			},
-			expectError:            false,
-			expectHttpError:        false,
-			expectOutputPathsCount: 4,
-			expectOutputPaths:      []string{"/document_docx/document.docx_0.pdf", "/document_docx/document.docx_1.pdf", "/document2_docx/document2.docx_0.pdf", "/document2_docx/document2.docx_1.pdf"},
-		},
-		{
-			scenario: "success with merge and split",
-			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",
-					},
-					"splitMode": {
-						gotenberg.SplitModeIntervals,
-					},
-					"splitSpan": {
-						"1",
-					},
-				})
-				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 nil
-				},
-				SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
-					inputPathNoExt := inputPath[:len(inputPath)-len(filepath.Ext(inputPath))]
-					filenameNoExt := filepath.Base(inputPathNoExt)
-					return []string{
-						fmt.Sprintf(
-							"%s/%s_%d.pdf",
-							outputDirPath, filenameNoExt, 0,
-						),
-						fmt.Sprintf(
-							"%s/%s_%d.pdf",
-							outputDirPath, filenameNoExt, 1,
-						),
-					}, nil
-				},
-			},
-			expectError:            false,
-			expectHttpError:        false,
-			expectOutputPathsCount: 2,
-		},
-		{
-			scenario: "success with split and native PDF/A & PDF/UA (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",
-				})
-				ctx.SetValues(map[string][]string{
-					"splitMode": {
-						gotenberg.SplitModeIntervals,
-					},
-					"splitSpan": {
-						"1",
-					},
-					"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"}
-				},
-			},
-			engine: &gotenberg.PdfEngineMock{
-				SplitMock: func(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
-					inputPathNoExt := inputPath[:len(inputPath)-len(filepath.Ext(inputPath))]
-					filenameNoExt := filepath.Base(inputPathNoExt)
-					return []string{
-						fmt.Sprintf(
-							"%s/%s_%d.pdf",
-							outputDirPath, filenameNoExt, 0,
-						),
-						fmt.Sprintf(
-							"%s/%s_%d.pdf",
-							outputDirPath, filenameNoExt, 1,
-						),
-					}, nil
-				},
-				ConvertMock: func(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-					return nil
-				},
-			},
-			expectError:            false,
-			expectHttpError:        false,
-			expectOutputPathsCount: 4,
-			expectOutputPaths:      []string{"/document_docx/document.docx_0.pdf", "/document_docx/document.docx_1.pdf", "/document2_docx/document2.docx_0.pdf", "/document2_docx/document2.docx_1.pdf"},
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			tc.ctx.SetLogger(zap.NewNop())
-			tc.ctx.SetMkdirAll(&gotenberg.MkdirAllMock{MkdirAllMock: func(path string, perm os.FileMode) error {
-				return nil
-			}})
-			tc.ctx.SetPathRename(&gotenberg.PathRenameMock{RenameMock: func(oldpath, newpath string) error {
-				return nil
-			}})
-			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()
 
+	// Normalize the log format based on the output device.
+	if format == autoLoggingFormat {
+		if isTerminal {
+			format = textLoggingFormat
+		} else {
+			format = jsonLoggingFormat
+		}
+	}
+
+	// Use a human-readable time format if running in a terminal.
 	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.Local().Format("2006/01/02 15:04:05.000"))
 		}
+	}
 
-		if format == textLoggingFormat || format == autoLoggingFormat {
+	// 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/pdfcpu.go

@@ -5,7 +5,11 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
 	"path/filepath"
+	"sort"
+	"strings"
+	"syscall"
 
 	"go.uber.org/zap"
 
@@ -52,6 +56,32 @@ func (engine *PdfCpu) Validate() error {
 	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 {
 	var args []string
@@ -99,14 +129,33 @@ func (engine *PdfCpu) Split(ctx context.Context, logger *zap.Logger, mode gotenb
 		return nil, fmt.Errorf("split PDFs with pdfcpu: %w", err)
 	}
 
-	outputPaths, err := gotenberg.WalkDir(outputDirPath, ".pdf")
+	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)
@@ -127,5 +176,6 @@ 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

@@ -1,267 +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_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("PDFTK_BIN_PATH"),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(PdfCpu)
-			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 TestPdfCpu_Merge(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         context.Context
-		inputPaths  []string
-		expectError bool
-	}{
-		{
-			scenario:    "invalid context",
-			ctx:         nil,
-			expectError: true,
-		},
-		{
-			scenario: "invalid input path",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"foo",
-			},
-			expectError: true,
-		},
-		{
-			scenario: "single file success",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-			},
-			expectError: false,
-		},
-		{
-			scenario: "many files success",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-				"/tests/test/testdata/pdfengines/sample2.pdf",
-			},
-			expectError: false,
-		},
-	} {
-		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(new(gotenberg.OsMkdirAll))
-			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(tc.ctx, zap.NewNop(), 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_Split(t *testing.T) {
-	for _, tc := range []struct {
-		scenario               string
-		ctx                    context.Context
-		mode                   gotenberg.SplitMode
-		inputPath              string
-		expectError            bool
-		expectedError          error
-		expectOutputPathsCount int
-	}{
-		{
-			scenario:               "ErrPdfSplitModeNotSupported",
-			expectError:            true,
-			expectedError:          gotenberg.ErrPdfSplitModeNotSupported,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "invalid context",
-			ctx:                    nil,
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModeIntervals, Span: "1"},
-			expectError:            true,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "invalid input path",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModeIntervals, Span: "1"},
-			inputPath:              "",
-			expectError:            true,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "success (intervals)",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModeIntervals, Span: "1"},
-			inputPath:              "/tests/test/testdata/pdfengines/sample1.pdf",
-			expectError:            false,
-			expectOutputPathsCount: 3,
-		},
-		{
-			scenario:               "success (pages)",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1"},
-			inputPath:              "/tests/test/testdata/pdfengines/sample1.pdf",
-			expectError:            false,
-			expectOutputPathsCount: 1,
-		},
-		{
-			scenario:               "success (pages & unify)",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1-2", Unify: true},
-			inputPath:              "/tests/test/testdata/pdfengines/sample1.pdf",
-			expectError:            false,
-			expectOutputPathsCount: 1,
-		},
-	} {
-		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(new(gotenberg.OsMkdirAll))
-			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)
-				}
-			}()
-
-			outputPaths, err := engine.Split(tc.ctx, zap.NewNop(), tc.mode, tc.inputPath, outputDir)
-
-			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.expectOutputPathsCount != len(outputPaths) {
-				t.Errorf("expected %d output paths but got %d", tc.expectOutputPathsCount, len(outputPaths))
-			}
-		})
-	}
-}
-
-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

@@ -12,26 +12,29 @@ import (
 )
 
 type multiPdfEngines struct {
-	mergeEngines       []gotenberg.PdfEngine
-	splitEngines       []gotenberg.PdfEngine
-	convertEngines     []gotenberg.PdfEngine
-	readMedataEngines  []gotenberg.PdfEngine
-	writeMedataEngines []gotenberg.PdfEngine
+	mergeEngines         []gotenberg.PdfEngine
+	splitEngines         []gotenberg.PdfEngine
+	flattenEngines       []gotenberg.PdfEngine
+	convertEngines       []gotenberg.PdfEngine
+	readMetadataEngines  []gotenberg.PdfEngine
+	writeMetadataEngines []gotenberg.PdfEngine
 }
 
 func newMultiPdfEngines(
 	mergeEngines,
 	splitEngines,
+	flattenEngines,
 	convertEngines,
 	readMetadataEngines,
-	writeMedataEngines []gotenberg.PdfEngine,
+	writeMetadataEngines []gotenberg.PdfEngine,
 ) *multiPdfEngines {
 	return &multiPdfEngines{
-		mergeEngines:       mergeEngines,
-		splitEngines:       splitEngines,
-		convertEngines:     convertEngines,
-		readMedataEngines:  readMetadataEngines,
-		writeMedataEngines: writeMedataEngines,
+		mergeEngines:         mergeEngines,
+		splitEngines:         splitEngines,
+		flattenEngines:       flattenEngines,
+		convertEngines:       convertEngines,
+		readMetadataEngines:  readMetadataEngines,
+		writeMetadataEngines: writeMetadataEngines,
 	}
 }
 
@@ -71,16 +74,14 @@ func (multi *multiPdfEngines) Split(ctx context.Context, logger *zap.Logger, mod
 	var err error
 	var mu sync.Mutex // to safely append errors.
 
-	resultChan := make(chan splitResult, len(multi.splitEngines))
-
 	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)
-	}
 
-	for range multi.splitEngines {
 		select {
 		case result := <-resultChan:
 			if result.err != nil {
@@ -98,6 +99,31 @@ func (multi *multiPdfEngines) Split(ctx context.Context, logger *zap.Logger, mod
 	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 {
@@ -132,16 +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.readMedataEngines))
+	for _, engine := range multi.readMetadataEngines {
+		resultChan := make(chan readMetadataResult, 1)
 
-	for _, engine := range multi.readMedataEngines {
 		go func(engine gotenberg.PdfEngine) {
 			metadata, err := engine.ReadMetadata(ctx, logger, inputPath)
 			resultChan <- readMetadataResult{metadata: metadata, err: err}
 		}(engine)
-	}
 
-	for range multi.readMedataEngines {
 		select {
 		case result := <-resultChan:
 			if result.err != nil {
@@ -163,7 +187,7 @@ func (multi *multiPdfEngines) WriteMetadata(ctx context.Context, logger *zap.Log
 	var err error
 	errChan := make(chan error, 1)
 
-	for _, engine := range multi.writeMedataEngines {
+	for _, engine := range multi.writeMetadataEngines {
 		go func(engine gotenberg.PdfEngine) {
 			errChan <- engine.WriteMetadata(ctx, logger, metadata, inputPath)
 		}(engine)

pkg/modules/pdfengines/multi_test.go

@@ -194,6 +194,97 @@ func TestMultiPdfEngines_Split(t *testing.T) {
 	}
 }
 
+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
@@ -295,7 +386,7 @@ func TestMultiPdfEngines_ReadMetadata(t *testing.T) {
 		{
 			scenario: "nominal behavior",
 			engine: &multiPdfEngines{
-				readMedataEngines: []gotenberg.PdfEngine{
+				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
@@ -308,7 +399,7 @@ func TestMultiPdfEngines_ReadMetadata(t *testing.T) {
 		{
 			scenario: "at least one engine does not return an error",
 			engine: &multiPdfEngines{
-				readMedataEngines: []gotenberg.PdfEngine{
+				readMetadataEngines: []gotenberg.PdfEngine{
 					&gotenberg.PdfEngineMock{
 						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
 							return nil, errors.New("foo")
@@ -326,7 +417,7 @@ func TestMultiPdfEngines_ReadMetadata(t *testing.T) {
 		{
 			scenario: "all engines return an error",
 			engine: &multiPdfEngines{
-				readMedataEngines: []gotenberg.PdfEngine{
+				readMetadataEngines: []gotenberg.PdfEngine{
 					&gotenberg.PdfEngineMock{
 						ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]interface{}, error) {
 							return nil, errors.New("foo")
@@ -345,7 +436,7 @@ func TestMultiPdfEngines_ReadMetadata(t *testing.T) {
 		{
 			scenario: "context expired",
 			engine: &multiPdfEngines{
-				readMedataEngines: []gotenberg.PdfEngine{
+				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
@@ -386,7 +477,7 @@ func TestMultiPdfEngines_WriteMetadata(t *testing.T) {
 		{
 			scenario: "nominal behavior",
 			engine: &multiPdfEngines{
-				writeMedataEngines: []gotenberg.PdfEngine{
+				writeMetadataEngines: []gotenberg.PdfEngine{
 					&gotenberg.PdfEngineMock{
 						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
 							return nil
@@ -399,7 +490,7 @@ func TestMultiPdfEngines_WriteMetadata(t *testing.T) {
 		{
 			scenario: "at least one engine does not return an error",
 			engine: &multiPdfEngines{
-				writeMedataEngines: []gotenberg.PdfEngine{
+				writeMetadataEngines: []gotenberg.PdfEngine{
 					&gotenberg.PdfEngineMock{
 						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
 							return errors.New("foo")
@@ -417,7 +508,7 @@ func TestMultiPdfEngines_WriteMetadata(t *testing.T) {
 		{
 			scenario: "all engines return an error",
 			engine: &multiPdfEngines{
-				writeMedataEngines: []gotenberg.PdfEngine{
+				writeMetadataEngines: []gotenberg.PdfEngine{
 					&gotenberg.PdfEngineMock{
 						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
 							return errors.New("foo")
@@ -436,7 +527,7 @@ func TestMultiPdfEngines_WriteMetadata(t *testing.T) {
 		{
 			scenario: "context expired",
 			engine: &multiPdfEngines{
-				writeMedataEngines: []gotenberg.PdfEngine{
+				writeMetadataEngines: []gotenberg.PdfEngine{
 					&gotenberg.PdfEngineMock{
 						WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, metadata map[string]interface{}, inputPath string) error {
 							return nil

pkg/modules/pdfengines/pdfengines.go

@@ -27,13 +27,14 @@ func init() {
 // the [api.Router] interface to expose relevant PDF processing routes if
 // enabled.
 type PdfEngines struct {
-	mergeNames        []string
-	splitNames        []string
-	convertNames      []string
-	readMetadataNames []string
-	writeMedataNames  []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.
@@ -44,11 +45,13 @@ func (mod *PdfEngines) Descriptor() gotenberg.ModuleDescriptor {
 			fs := flag.NewFlagSet("pdfengines", flag.ExitOnError)
 			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 {
@@ -67,6 +70,7 @@ func (mod *PdfEngines) Provision(ctx *gotenberg.Context) error {
 	flags := ctx.ParsedFlags()
 	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")
@@ -106,6 +110,11 @@ func (mod *PdfEngines) Provision(ctx *gotenberg.Context) error {
 		mod.splitNames = splitNames
 	}
 
+	mod.flattenNames = defaultNames
+	if len(flattenNames) > 0 {
+		mod.flattenNames = flattenNames
+	}
+
 	mod.convertNames = defaultNames
 	if len(convertNames) > 0 {
 		mod.convertNames = convertNames
@@ -116,9 +125,9 @@ func (mod *PdfEngines) Provision(ctx *gotenberg.Context) error {
 		mod.readMetadataNames = readMetadataNames
 	}
 
-	mod.writeMedataNames = defaultNames
+	mod.writeMetadataNames = defaultNames
 	if len(writeMetadataNames) > 0 {
-		mod.writeMedataNames = writeMetadataNames
+		mod.writeMetadataNames = writeMetadataNames
 	}
 
 	return nil
@@ -170,9 +179,10 @@ func (mod *PdfEngines) Validate() error {
 
 	findNonExistingEngines(mod.mergeNames)
 	findNonExistingEngines(mod.splitNames)
+	findNonExistingEngines(mod.flattenNames)
 	findNonExistingEngines(mod.convertNames)
 	findNonExistingEngines(mod.readMetadataNames)
-	findNonExistingEngines(mod.writeMedataNames)
+	findNonExistingEngines(mod.writeMetadataNames)
 
 	if len(nonExistingEngines) == 0 {
 		return nil
@@ -187,9 +197,10 @@ func (mod *PdfEngines) SystemMessages() []string {
 	return []string{
 		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 medata engines - %s", strings.Join(mod.writeMedataNames[:], " ")),
+		fmt.Sprintf("write metadata engines - %s", strings.Join(mod.writeMetadataNames[:], " ")),
 	}
 }
 
@@ -212,9 +223,10 @@ func (mod *PdfEngines) PdfEngine() (gotenberg.PdfEngine, error) {
 	return newMultiPdfEngines(
 		engines(mod.mergeNames),
 		engines(mod.splitNames),
+		engines(mod.flattenNames),
 		engines(mod.convertNames),
 		engines(mod.readMetadataNames),
-		engines(mod.writeMedataNames),
+		engines(mod.writeMetadataNames),
 	), nil
 }
 
@@ -234,6 +246,7 @@ func (mod *PdfEngines) Routes() ([]api.Route, error) {
 	return []api.Route{
 		mergeRoute(engine),
 		splitRoute(engine),
+		flattenRoute(engine),
 		convertRoute(engine),
 		readMetadataRoute(engine),
 		writeMetadataRoute(engine),

pkg/modules/pdfengines/pdfengines_test.go

@@ -1,408 +0,0 @@
-package pdfengines
-
-import (
-	"errors"
-	"fmt"
-	"reflect"
-	"strings"
-	"testing"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestPdfEngines_Descriptor(t *testing.T) {
-	descriptor := new(PdfEngines).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(PdfEngines))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestPdfEngines_Provision(t *testing.T) {
-	for _, tc := range []struct {
-		scenario                        string
-		ctx                             *gotenberg.Context
-		expectedMergePdfEngines         []string
-		expectedSplitPdfEngines         []string
-		expectedConvertPdfEngines       []string
-		expectedReadMetadataPdfEngines  []string
-		expectedWriteMetadataPdfEngines []string
-		expectError                     bool
-	}{
-		{
-			scenario: "no selection from user",
-			ctx: func() *gotenberg.Context {
-				provider := &struct {
-					gotenberg.ModuleMock
-				}{}
-				provider.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module {
-						return provider
-					}}
-				}
-
-				engine := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					gotenberg.PdfEngineMock
-				}{}
-				engine.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return engine }}
-				}
-				engine.ValidateMock = func() error {
-					return nil
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(PdfEngines).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						provider.Descriptor(),
-						engine.Descriptor(),
-					},
-				)
-			}(),
-			expectedMergePdfEngines:         []string{"qpdf", "pdfcpu", "pdftk"},
-			expectedSplitPdfEngines:         []string{"pdfcpu", "qpdf", "pdftk"},
-			expectedConvertPdfEngines:       []string{"libreoffice-pdfengine"},
-			expectedReadMetadataPdfEngines:  []string{"exiftool"},
-			expectedWriteMetadataPdfEngines: []string{"exiftool"},
-			expectError:                     false,
-		},
-		{
-			scenario: "selection from user",
-			ctx: func() *gotenberg.Context {
-				provider := &struct {
-					gotenberg.ModuleMock
-				}{}
-				provider.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module {
-						return provider
-					}}
-				}
-				engine1 := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					gotenberg.PdfEngineMock
-				}{}
-				engine1.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "a", New: func() gotenberg.Module { return engine1 }}
-				}
-				engine1.ValidateMock = func() error {
-					return nil
-				}
-
-				engine2 := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					gotenberg.PdfEngineMock
-				}{}
-				engine2.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "b", New: func() gotenberg.Module { return engine2 }}
-				}
-				engine2.ValidateMock = func() error {
-					return nil
-				}
-
-				fs := new(PdfEngines).Descriptor().FlagSet
-				err := fs.Parse([]string{"--pdfengines-merge-engines=b", "--pdfengines-split-engines=a", "--pdfengines-convert-engines=b", "--pdfengines-read-metadata-engines=a", "--pdfengines-write-metadata-engines=a"})
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: fs,
-					},
-					[]gotenberg.ModuleDescriptor{
-						provider.Descriptor(),
-						engine1.Descriptor(),
-						engine2.Descriptor(),
-					},
-				)
-			}(),
-
-			expectedMergePdfEngines:         []string{"b"},
-			expectedSplitPdfEngines:         []string{"a"},
-			expectedConvertPdfEngines:       []string{"b"},
-			expectedReadMetadataPdfEngines:  []string{"a"},
-			expectedWriteMetadataPdfEngines: []string{"a"},
-			expectError:                     false,
-		},
-		{
-			scenario: "no valid PDF engine",
-			ctx: func() *gotenberg.Context {
-				provider := &struct {
-					gotenberg.ModuleMock
-				}{}
-				provider.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module {
-						return provider
-					}}
-				}
-				engine := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					gotenberg.PdfEngineMock
-				}{}
-				engine.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return engine }}
-				}
-				engine.ValidateMock = func() error {
-					return errors.New("foo")
-				}
-
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(PdfEngines).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						provider.Descriptor(),
-						engine.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(PdfEngines)
-			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 len(tc.expectedMergePdfEngines) != len(mod.mergeNames) {
-				t.Fatalf("expected %d merge names but got %d", len(tc.expectedMergePdfEngines), len(mod.mergeNames))
-			}
-
-			if len(tc.expectedConvertPdfEngines) != len(mod.convertNames) {
-				t.Fatalf("expected %d convert names but got %d", len(tc.expectedConvertPdfEngines), len(mod.convertNames))
-			}
-
-			if len(tc.expectedReadMetadataPdfEngines) != len(mod.readMetadataNames) {
-				t.Fatalf("expected %d read metadata names but got %d", len(tc.expectedReadMetadataPdfEngines), len(mod.readMetadataNames))
-			}
-
-			if len(tc.expectedWriteMetadataPdfEngines) != len(mod.writeMedataNames) {
-				t.Fatalf("expected %d write metadata names but got %d", len(tc.expectedWriteMetadataPdfEngines), len(mod.writeMedataNames))
-			}
-
-			for index, name := range mod.mergeNames {
-				if name != tc.expectedMergePdfEngines[index] {
-					t.Fatalf("expected merge name at index %d to be %s, but got: %s", index, name, tc.expectedMergePdfEngines[index])
-				}
-			}
-
-			for index, name := range mod.splitNames {
-				if name != tc.expectedSplitPdfEngines[index] {
-					t.Fatalf("expected split name at index %d to be %s, but got: %s", index, name, tc.expectedSplitPdfEngines[index])
-				}
-			}
-
-			for index, name := range mod.convertNames {
-				if name != tc.expectedConvertPdfEngines[index] {
-					t.Fatalf("expected convert name at index %d to be %s, but got: %s", index, name, tc.expectedConvertPdfEngines[index])
-				}
-			}
-
-			for index, name := range mod.readMetadataNames {
-				if name != tc.expectedReadMetadataPdfEngines[index] {
-					t.Fatalf("expected read metadata name at index %d to be %s, but got: %s", index, name, tc.expectedReadMetadataPdfEngines[index])
-				}
-			}
-
-			for index, name := range mod.writeMedataNames {
-				if name != tc.expectedWriteMetadataPdfEngines[index] {
-					t.Fatalf("expected write metadat name at index %d to be %s, but got: %s", index, name, tc.expectedWriteMetadataPdfEngines[index])
-				}
-			}
-		})
-	}
-}
-
-func TestPdfEngines_Validate(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		names       []string
-		engines     []gotenberg.PdfEngine
-		expectError bool
-	}{
-		{
-			scenario: "existing PDF engine",
-			names:    []string{"foo"},
-			engines: func() []gotenberg.PdfEngine {
-				engine := &struct {
-					gotenberg.ModuleMock
-					gotenberg.PdfEngineMock
-				}{}
-				engine.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return engine }}
-				}
-
-				return []gotenberg.PdfEngine{
-					engine,
-				}
-			}(),
-			expectError: false,
-		},
-		{
-			scenario: "non-existing bar PDF engine",
-			names:    []string{"foo", "bar", "baz"},
-			engines: func() []gotenberg.PdfEngine {
-				engine1 := &struct {
-					gotenberg.ModuleMock
-					gotenberg.PdfEngineMock
-				}{}
-				engine1.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return engine1 }}
-				}
-
-				engine2 := &struct {
-					gotenberg.ModuleMock
-					gotenberg.PdfEngineMock
-				}{}
-				engine2.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "baz", New: func() gotenberg.Module { return engine2 }}
-				}
-
-				return []gotenberg.PdfEngine{
-					engine1,
-					engine2,
-				}
-			}(),
-			expectError: true,
-		},
-		{
-			scenario:    "no PDF engine",
-			expectError: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := PdfEngines{
-				mergeNames:        tc.names,
-				convertNames:      tc.names,
-				readMetadataNames: tc.names,
-				writeMedataNames:  tc.names,
-				engines:           tc.engines,
-			}
-
-			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 TestPdfEngines_SystemMessages(t *testing.T) {
-	mod := new(PdfEngines)
-	mod.mergeNames = []string{"foo", "bar"}
-	mod.splitNames = []string{"foo", "bar"}
-	mod.convertNames = []string{"foo", "bar"}
-	mod.readMetadataNames = []string{"foo", "bar"}
-	mod.writeMedataNames = []string{"foo", "bar"}
-
-	messages := mod.SystemMessages()
-	if len(messages) != 5 {
-		t.Errorf("expected one and only one message, but got %d", len(messages))
-	}
-
-	expect := []string{
-		fmt.Sprintf("merge engines - %s", strings.Join(mod.mergeNames[:], " ")),
-		fmt.Sprintf("split engines - %s", strings.Join(mod.splitNames[:], " ")),
-		fmt.Sprintf("convert engines - %s", strings.Join(mod.convertNames[:], " ")),
-		fmt.Sprintf("read metadata engines - %s", strings.Join(mod.readMetadataNames[:], " ")),
-		fmt.Sprintf("write medata engines - %s", strings.Join(mod.writeMedataNames[:], " ")),
-	}
-
-	for i, message := range messages {
-		if message != expect[i] {
-			t.Errorf("expected message at index %d to be %s, but got %s", i, message, expect[i])
-		}
-	}
-}
-
-func TestPdfEngines_PdfEngine(t *testing.T) {
-	mod := PdfEngines{
-		mergeNames:        []string{"foo", "bar"},
-		splitNames:        []string{"foo", "bar"},
-		convertNames:      []string{"foo", "bar"},
-		readMetadataNames: []string{"foo", "bar"},
-		writeMedataNames:  []string{"foo", "bar"},
-		engines: func() []gotenberg.PdfEngine {
-			engine1 := &struct {
-				gotenberg.ModuleMock
-				gotenberg.PdfEngineMock
-			}{}
-			engine1.DescriptorMock = func() gotenberg.ModuleDescriptor {
-				return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return engine1 }}
-			}
-
-			engine2 := &struct {
-				gotenberg.ModuleMock
-				gotenberg.PdfEngineMock
-			}{}
-			engine2.DescriptorMock = func() gotenberg.ModuleDescriptor {
-				return gotenberg.ModuleDescriptor{ID: "bar", New: func() gotenberg.Module { return engine2 }}
-			}
-
-			return []gotenberg.PdfEngine{
-				engine1,
-				engine2,
-			}
-		}(),
-	}
-
-	_, err := mod.PdfEngine()
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestPdfEngines_Routes(t *testing.T) {
-	for _, tc := range []struct {
-		scenario      string
-		expectRoutes  int
-		disableRoutes bool
-	}{
-		{
-			scenario:      "routes not disabled",
-			expectRoutes:  5,
-			disableRoutes: false,
-		},
-		{
-			scenario:      "routes disabled",
-			expectRoutes:  0,
-			disableRoutes: true,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(PdfEngines)
-			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/pdfengines/routes.go

@@ -202,6 +202,19 @@ func SplitPdfStub(ctx *api.Context, engine gotenberg.PdfEngine, mode gotenberg.S
 	return outputPaths, nil
 }
 
+// FlattenStub merges annotation appearances with page content for each given
+// PDF, effectively deleting the original annotations.
+func FlattenStub(ctx *api.Context, engine gotenberg.PdfEngine, inputPaths []string) error {
+	for _, inputPath := range inputPaths {
+		err := engine.Flatten(ctx, ctx.Log(), inputPath)
+		if err != nil {
+			return fmt.Errorf("flatten '%s': %w", inputPath, err)
+		}
+	}
+
+	return nil
+}
+
 // ConvertStub transforms a given PDF to the specified formats defined in
 // [gotenberg.PdfFormats]. If no format, it does nothing and returns the input
 // paths.
@@ -255,8 +268,10 @@ func mergeRoute(engine gotenberg.PdfEngine) api.Route {
 			metadata := FormDataPdfMetadata(form, false)
 
 			var inputPaths []string
+			var flatten bool
 			err := form.
 				MandatoryPaths([]string{".pdf"}, &inputPaths).
+				Bool("flatten", &flatten, false).
 				Validate()
 			if err != nil {
 				return fmt.Errorf("validate form data: %w", err)
@@ -278,6 +293,13 @@ func mergeRoute(engine gotenberg.PdfEngine) api.Route {
 				return fmt.Errorf("write metadata: %w", err)
 			}
 
+			if flatten {
+				err = FlattenStub(ctx, engine, outputPaths)
+				if err != nil {
+					return fmt.Errorf("flatten PDFs: %w", err)
+				}
+			}
+
 			err = ctx.AddOutputPaths(outputPaths...)
 			if err != nil {
 				return fmt.Errorf("add output paths: %w", err)
@@ -303,8 +325,10 @@ func splitRoute(engine gotenberg.PdfEngine) api.Route {
 			metadata := FormDataPdfMetadata(form, false)
 
 			var inputPaths []string
+			var flatten bool
 			err := form.
 				MandatoryPaths([]string{".pdf"}, &inputPaths).
+				Bool("flatten", &flatten, false).
 				Validate()
 			if err != nil {
 				return fmt.Errorf("validate form data: %w", err)
@@ -325,6 +349,13 @@ func splitRoute(engine gotenberg.PdfEngine) api.Route {
 				return fmt.Errorf("write metadata: %w", err)
 			}
 
+			if flatten {
+				err = FlattenStub(ctx, engine, convertOutputPaths)
+				if err != nil {
+					return fmt.Errorf("flatten PDFs: %w", err)
+				}
+			}
+
 			zeroValuedSplitMode := gotenberg.SplitMode{}
 			zeroValuedPdfFormats := gotenberg.PdfFormats{}
 			if mode != zeroValuedSplitMode && pdfFormats != zeroValuedPdfFormats {
@@ -347,6 +378,40 @@ func splitRoute(engine gotenberg.PdfEngine) api.Route {
 	}
 }
 
+// flattenRoute returns an [api.Route] which can flatten PDFs.
+func flattenRoute(engine gotenberg.PdfEngine) api.Route {
+	return api.Route{
+		Method:      http.MethodPost,
+		Path:        "/forms/pdfengines/flatten",
+		IsMultipart: true,
+		Handler: func(c echo.Context) error {
+			ctx := c.Get("context").(*api.Context)
+
+			form := ctx.FormData()
+
+			var inputPaths []string
+			err := form.
+				MandatoryPaths([]string{".pdf"}, &inputPaths).
+				Validate()
+			if err != nil {
+				return fmt.Errorf("validate form data: %w", err)
+			}
+
+			err = FlattenStub(ctx, engine, inputPaths)
+			if err != nil {
+				return fmt.Errorf("flatten PDFs: %w", err)
+			}
+
+			err = ctx.AddOutputPaths(inputPaths...)
+			if err != nil {
+				return fmt.Errorf("add output paths: %w", err)
+			}
+
+			return nil
+		},
+	}
+}
+
 // convertRoute returns an [api.Route] which can convert PDFs to a specific ODF
 // format.
 func convertRoute(engine gotenberg.PdfEngine) api.Route {

pkg/modules/pdftk/pdftk.go

@@ -1,11 +1,14 @@
 package pdftk
 
 import (
+	"bytes"
 	"context"
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
 	"path/filepath"
+	"syscall"
 
 	"go.uber.org/zap"
 
@@ -52,6 +55,29 @@ func (engine *PdfTk) Validate() error {
 	return nil
 }
 
+// Debug returns additional debug data.
+func (engine *PdfTk) 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
+	}
+
+	lines := bytes.SplitN(output, []byte("\n"), 2)
+	if len(lines) > 0 {
+		debug["version"] = string(lines[0])
+	} else {
+		debug["version"] = "Unable to determine PDFtk version"
+	}
+
+	return debug
+}
+
 // Split splits a given PDF file.
 func (engine *PdfTk) Split(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
 	var args []string
@@ -99,6 +125,11 @@ func (engine *PdfTk) Merge(ctx context.Context, logger *zap.Logger, inputPaths [
 	return fmt.Errorf("merge PDFs with PDFtk: %w", err)
 }
 
+// Flatten is not available in this implementation.
+func (engine *PdfTk) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
+	return fmt.Errorf("flatten PDF with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
 // Convert is not available in this implementation.
 func (engine *PdfTk) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
 	return fmt.Errorf("convert PDF to '%+v' with PDFtk: %w", formats, gotenberg.ErrPdfEngineMethodNotSupported)
@@ -119,5 +150,6 @@ var (
 	_ gotenberg.Module      = (*PdfTk)(nil)
 	_ gotenberg.Provisioner = (*PdfTk)(nil)
 	_ gotenberg.Validator   = (*PdfTk)(nil)
+	_ gotenberg.Debuggable  = (*PdfTk)(nil)
 	_ gotenberg.PdfEngine   = (*PdfTk)(nil)
 )

pkg/modules/pdftk/pdftk_test.go

@@ -1,260 +0,0 @@
-package pdftk
-
-import (
-	"context"
-	"errors"
-	"os"
-	"reflect"
-	"testing"
-
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestPdfTk_Descriptor(t *testing.T) {
-	descriptor := new(PdfTk).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(PdfTk))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestPdfTk_Provision(t *testing.T) {
-	engine := new(PdfTk)
-	ctx := gotenberg.NewContext(gotenberg.ParsedFlags{}, nil)
-
-	err := engine.Provision(ctx)
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestPdfTk_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("PDFTK_BIN_PATH"),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(PdfTk)
-			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 TestPdfTk_Merge(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         context.Context
-		inputPaths  []string
-		expectError bool
-	}{
-		{
-			scenario:    "invalid context",
-			ctx:         nil,
-			expectError: true,
-		},
-		{
-			scenario: "invalid input path",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"foo",
-			},
-			expectError: true,
-		},
-		{
-			scenario: "single file success",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-			},
-			expectError: false,
-		},
-		{
-			scenario: "many files success",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-				"/tests/test/testdata/pdfengines/sample2.pdf",
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(PdfTk)
-			err := engine.Provision(nil)
-			if err != nil {
-				t.Fatalf("expected error but got: %v", err)
-			}
-
-			fs := gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll))
-			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(tc.ctx, zap.NewNop(), 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_Split(t *testing.T) {
-	for _, tc := range []struct {
-		scenario               string
-		ctx                    context.Context
-		mode                   gotenberg.SplitMode
-		inputPath              string
-		expectError            bool
-		expectedError          error
-		expectOutputPathsCount int
-		expectOutputPaths      []string
-	}{
-		{
-			scenario:               "ErrPdfSplitModeNotSupported",
-			expectError:            true,
-			expectedError:          gotenberg.ErrPdfSplitModeNotSupported,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "ErrPdfSplitModeNotSupported (no unify with pages)",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1", Unify: false},
-			expectError:            true,
-			expectedError:          gotenberg.ErrPdfSplitModeNotSupported,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "invalid context",
-			ctx:                    nil,
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1-2", Unify: true},
-			expectError:            true,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "invalid input path",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1-2", Unify: true},
-			inputPath:              "",
-			expectError:            true,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "success (pages & unify)",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1-2", Unify: true},
-			inputPath:              "/tests/test/testdata/pdfengines/sample1.pdf",
-			expectError:            false,
-			expectOutputPathsCount: 1,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(PdfTk)
-			err := engine.Provision(nil)
-			if err != nil {
-				t.Fatalf("expected error but got: %v", err)
-			}
-
-			fs := gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll))
-			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)
-				}
-			}()
-
-			outputPaths, err := engine.Split(tc.ctx, zap.NewNop(), tc.mode, tc.inputPath, outputDir)
-
-			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.expectOutputPathsCount != len(outputPaths) {
-				t.Errorf("expected %d output paths but got %d", tc.expectOutputPathsCount, len(outputPaths))
-			}
-		})
-	}
-}
-
-func TestPdfTk_Convert(t *testing.T) {
-	engine := new(PdfTk)
-	err := engine.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(PdfTk)
-	_, 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(PdfTk)
-	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/prometheus/prometheus_test.go

@@ -1,360 +0,0 @@
-package prometheus
-
-import (
-	"errors"
-	"reflect"
-	"testing"
-	"time"
-
-	"github.com/prometheus/client_golang/prometheus"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestPrometheus_Descriptor(t *testing.T) {
-	descriptor := new(Prometheus).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(Prometheus))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestPrometheus_Provision(t *testing.T) {
-	for _, tc := range []struct {
-		scenario      string
-		ctx           *gotenberg.Context
-		expectMetrics []gotenberg.Metric
-		expectError   bool
-	}{
-		{
-			scenario: "disable collect",
-			ctx: func() *gotenberg.Context {
-				fs := new(Prometheus).Descriptor().FlagSet
-				err := fs.Parse([]string{"--prometheus-disable-collect=true"})
-				if err != nil {
-					t.Fatalf("expected no error but got: %v", err)
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: fs,
-					},
-					nil,
-				)
-			}(),
-			expectError: false,
-		},
-		{
-			scenario: "invalid metrics provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					gotenberg.MetricsProviderMock
-				}{}
-				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.MetricsMock = func() ([]gotenberg.Metric, error) {
-					return nil, nil
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Prometheus).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "invalid metrics from metrics provider",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					gotenberg.MetricsProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.ValidateMock = func() error {
-					return nil
-				}
-				mod.MetricsMock = func() ([]gotenberg.Metric, error) {
-					return nil, errors.New("foo")
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Prometheus).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectError: true,
-		},
-		{
-			scenario: "provision success",
-			ctx: func() *gotenberg.Context {
-				mod := &struct {
-					gotenberg.ModuleMock
-					gotenberg.ValidatorMock
-					gotenberg.MetricsProviderMock
-				}{}
-				mod.DescriptorMock = func() gotenberg.ModuleDescriptor {
-					return gotenberg.ModuleDescriptor{ID: "foo", New: func() gotenberg.Module { return mod }}
-				}
-				mod.ValidateMock = func() error {
-					return nil
-				}
-				mod.MetricsMock = func() ([]gotenberg.Metric, error) {
-					return []gotenberg.Metric{
-						{
-							Name:        "foo",
-							Description: "Bar.",
-						},
-					}, nil
-				}
-				return gotenberg.NewContext(
-					gotenberg.ParsedFlags{
-						FlagSet: new(Prometheus).Descriptor().FlagSet,
-					},
-					[]gotenberg.ModuleDescriptor{
-						mod.Descriptor(),
-					},
-				)
-			}(),
-			expectMetrics: []gotenberg.Metric{
-				{
-					Name:        "foo",
-					Description: "Bar.",
-				},
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := new(Prometheus)
-			err := mod.Provision(tc.ctx)
-
-			if !reflect.DeepEqual(mod.metrics, tc.expectMetrics) {
-				t.Fatalf("expected metrics %+v, but got: %+v", tc.expectMetrics, mod.metrics)
-			}
-
-			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 TestPrometheus_Validate(t *testing.T) {
-	for _, tc := range []struct {
-		scenario       string
-		namespace      string
-		metrics        []gotenberg.Metric
-		disableCollect bool
-		expectError    bool
-	}{
-		{
-			scenario:       "collect disabled",
-			namespace:      "foo",
-			disableCollect: true,
-			expectError:    false,
-		},
-		{
-			scenario:       "empty namespace",
-			namespace:      "",
-			disableCollect: false,
-			expectError:    true,
-		},
-		{
-			scenario:  "empty metric name",
-			namespace: "foo",
-			metrics: []gotenberg.Metric{
-				{
-					Name: "",
-				},
-			},
-			disableCollect: false,
-			expectError:    true,
-		},
-		{
-			scenario:  "nil read metric method",
-			namespace: "foo",
-			metrics: []gotenberg.Metric{
-				{
-					Name: "foo",
-					Read: nil,
-				},
-			},
-			disableCollect: false,
-			expectError:    true,
-		},
-		{
-			scenario:  "already registered metric",
-			namespace: "foo",
-			metrics: []gotenberg.Metric{
-				{
-					Name: "foo",
-					Read: func() float64 {
-						return 0
-					},
-				},
-				{
-					Name: "foo",
-					Read: func() float64 {
-						return 0
-					},
-				},
-			},
-			disableCollect: false,
-			expectError:    true,
-		},
-		{
-			scenario:  "validate success",
-			namespace: "foo",
-			metrics: []gotenberg.Metric{
-				{
-					Name: "foo",
-					Read: func() float64 {
-						return 0
-					},
-				},
-				{
-					Name: "bar",
-					Read: func() float64 {
-						return 0
-					},
-				},
-			},
-			disableCollect: false,
-			expectError:    false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := &Prometheus{
-				namespace:      tc.namespace,
-				metrics:        tc.metrics,
-				disableCollect: tc.disableCollect,
-			}
-			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 TestPrometheus_Start(t *testing.T) {
-	for _, tc := range []struct {
-		scenario       string
-		metrics        []gotenberg.Metric
-		disableCollect bool
-	}{
-		{
-			scenario:       "collect disabled",
-			disableCollect: true,
-		},
-		{
-			scenario: "start success",
-			metrics: []gotenberg.Metric{
-				{
-					Name: "foo",
-					Read: func() float64 {
-						return 0
-					},
-				},
-			},
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := &Prometheus{
-				namespace:      "foo",
-				interval:       time.Duration(1) * time.Second,
-				metrics:        tc.metrics,
-				disableCollect: tc.disableCollect,
-				registry:       prometheus.NewRegistry(),
-			}
-
-			err := mod.Start()
-			if err != nil {
-				t.Errorf("expected no error but got: %v", err)
-			}
-		})
-	}
-}
-
-func TestPrometheus_StartupMessage(t *testing.T) {
-	mod := new(Prometheus)
-
-	mod.disableCollect = true
-	disableCollectMsg := mod.StartupMessage()
-
-	mod.disableCollect = false
-	noDisableCollectMsg := mod.StartupMessage()
-
-	if disableCollectMsg == noDisableCollectMsg {
-		t.Errorf("expected differrent startup messages if collect is disabled or not, but got '%s'", disableCollectMsg)
-	}
-}
-
-func TestPrometheus_Stop(t *testing.T) {
-	err := new(Prometheus).Stop(nil)
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestPrometheus_Routes(t *testing.T) {
-	for _, tc := range []struct {
-		scenario       string
-		disableCollect bool
-		expectRoutes   int
-	}{
-		{
-			scenario:       "collect disabled",
-			disableCollect: true,
-			expectRoutes:   0,
-		},
-		{
-			scenario:       "routes not disabled",
-			disableCollect: false,
-			expectRoutes:   1,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			mod := &Prometheus{
-				disableCollect: tc.disableCollect,
-				registry:       prometheus.NewRegistry(),
-			}
-
-			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/qpdf/doc.go

@@ -3,6 +3,7 @@
 //
 // 1. The merging of PDF files.
 // 2. The splitting of PDF files.
+// 3. Flattening of PDF files
 //
 // The path to the QPDF binary must be specified using the QPDK_BIN_PATH
 // environment variable.

pkg/modules/qpdf/qpdf.go

@@ -1,11 +1,14 @@
 package qpdf
 
 import (
+	"bytes"
 	"context"
 	"errors"
 	"fmt"
 	"os"
+	"os/exec"
 	"path/filepath"
+	"syscall"
 
 	"go.uber.org/zap"
 
@@ -19,7 +22,8 @@ func init() {
 // QPdf abstracts the CLI tool QPDF and implements the [gotenberg.PdfEngine]
 // interface.
 type QPdf struct {
-	binPath string
+	binPath    string
+	globalArgs []string
 }
 
 // Descriptor returns a [QPdf]'s module descriptor.
@@ -38,6 +42,8 @@ func (engine *QPdf) Provision(ctx *gotenberg.Context) error {
 	}
 
 	engine.binPath = binPath
+	// Warnings should not cause errors.
+	engine.globalArgs = []string{"--warning-exit-0"}
 
 	return nil
 }
@@ -52,6 +58,29 @@ func (engine *QPdf) Validate() error {
 	return nil
 }
 
+// Debug returns additional debug data.
+func (engine *QPdf) 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
+	}
+
+	lines := bytes.SplitN(output, []byte("\n"), 2)
+	if len(lines) > 0 {
+		debug["version"] = string(lines[0])
+	} else {
+		debug["version"] = "Unable to determine QPDF version"
+	}
+
+	return debug
+}
+
 // Split splits a given PDF file.
 func (engine *QPdf) Split(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
 	var args []string
@@ -62,7 +91,10 @@ func (engine *QPdf) Split(ctx context.Context, logger *zap.Logger, mode gotenber
 		if !mode.Unify {
 			return nil, fmt.Errorf("split PDFs using mode '%s' without unify with QPDF: %w", mode.Mode, gotenberg.ErrPdfSplitModeNotSupported)
 		}
-		args = append(args, inputPath, "--pages", ".", mode.Span, "--", outputPath)
+		args = append(args, inputPath)
+		args = append(args, engine.globalArgs...)
+		args = append(args, "--pages", ".", mode.Span)
+		args = append(args, "--", outputPath)
 	default:
 		return nil, fmt.Errorf("split PDFs using mode '%s' with QPDF: %w", mode.Mode, gotenberg.ErrPdfSplitModeNotSupported)
 	}
@@ -84,6 +116,7 @@ func (engine *QPdf) Split(ctx context.Context, logger *zap.Logger, mode gotenber
 func (engine *QPdf) Merge(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
 	var args []string
 	args = append(args, "--empty")
+	args = append(args, engine.globalArgs...)
 	args = append(args, "--pages")
 	args = append(args, inputPaths...)
 	args = append(args, "--", outputPath)
@@ -101,6 +134,29 @@ func (engine *QPdf) Merge(ctx context.Context, logger *zap.Logger, inputPaths []
 	return fmt.Errorf("merge PDFs with QPDF: %w", err)
 }
 
+// Flatten merges annotation appearances with page content, deleting the
+// original annotations.
+func (engine *QPdf) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
+	var args []string
+	args = append(args, inputPath)
+	args = append(args, "--generate-appearances")
+	args = append(args, "--flatten-annotations=all")
+	args = append(args, "--replace-input")
+	args = append(args, engine.globalArgs...)
+
+	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("flatten PDFs with QPDF: %w", err)
+}
+
 // Convert is not available in this implementation.
 func (engine *QPdf) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
 	return fmt.Errorf("convert PDF to '%+v' with QPDF: %w", formats, gotenberg.ErrPdfEngineMethodNotSupported)
@@ -120,5 +176,6 @@ var (
 	_ gotenberg.Module      = (*QPdf)(nil)
 	_ gotenberg.Provisioner = (*QPdf)(nil)
 	_ gotenberg.Validator   = (*QPdf)(nil)
+	_ gotenberg.Debuggable  = (*QPdf)(nil)
 	_ gotenberg.PdfEngine   = (*QPdf)(nil)
 )

pkg/modules/qpdf/qpdf_test.go

@@ -1,260 +0,0 @@
-package qpdf
-
-import (
-	"context"
-	"errors"
-	"os"
-	"reflect"
-	"testing"
-
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestQPdf_Descriptor(t *testing.T) {
-	descriptor := new(QPdf).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(QPdf))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestQPdf_Provision(t *testing.T) {
-	engine := new(QPdf)
-	ctx := gotenberg.NewContext(gotenberg.ParsedFlags{}, nil)
-
-	err := engine.Provision(ctx)
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestQPdf_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("QPDF_BIN_PATH"),
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(QPdf)
-			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 TestQPdf_Merge(t *testing.T) {
-	for _, tc := range []struct {
-		scenario    string
-		ctx         context.Context
-		inputPaths  []string
-		expectError bool
-	}{
-		{
-			scenario:    "invalid context",
-			ctx:         nil,
-			expectError: true,
-		},
-		{
-			scenario: "invalid input path",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"foo",
-			},
-			expectError: true,
-		},
-		{
-			scenario: "single file success",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-			},
-			expectError: false,
-		},
-		{
-			scenario: "many files success",
-			ctx:      context.TODO(),
-			inputPaths: []string{
-				"/tests/test/testdata/pdfengines/sample1.pdf",
-				"/tests/test/testdata/pdfengines/sample2.pdf",
-			},
-			expectError: false,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(QPdf)
-			err := engine.Provision(nil)
-			if err != nil {
-				t.Fatalf("expected error but got: %v", err)
-			}
-
-			fs := gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll))
-			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(tc.ctx, zap.NewNop(), 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 TestQPdf_Split(t *testing.T) {
-	for _, tc := range []struct {
-		scenario               string
-		ctx                    context.Context
-		mode                   gotenberg.SplitMode
-		inputPath              string
-		expectError            bool
-		expectedError          error
-		expectOutputPathsCount int
-		expectOutputPaths      []string
-	}{
-		{
-			scenario:               "ErrPdfSplitModeNotSupported",
-			expectError:            true,
-			expectedError:          gotenberg.ErrPdfSplitModeNotSupported,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "ErrPdfSplitModeNotSupported (no unify with pages)",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1", Unify: false},
-			expectError:            true,
-			expectedError:          gotenberg.ErrPdfSplitModeNotSupported,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "invalid context",
-			ctx:                    nil,
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1-2", Unify: true},
-			expectError:            true,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "invalid input path",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1-2", Unify: true},
-			inputPath:              "",
-			expectError:            true,
-			expectOutputPathsCount: 0,
-		},
-		{
-			scenario:               "success (pages & unify)",
-			ctx:                    context.TODO(),
-			mode:                   gotenberg.SplitMode{Mode: gotenberg.SplitModePages, Span: "1-2", Unify: true},
-			inputPath:              "/tests/test/testdata/pdfengines/sample1.pdf",
-			expectError:            false,
-			expectOutputPathsCount: 1,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			engine := new(QPdf)
-			err := engine.Provision(nil)
-			if err != nil {
-				t.Fatalf("expected error but got: %v", err)
-			}
-
-			fs := gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll))
-			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)
-				}
-			}()
-
-			outputPaths, err := engine.Split(tc.ctx, zap.NewNop(), tc.mode, tc.inputPath, outputDir)
-
-			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.expectOutputPathsCount != len(outputPaths) {
-				t.Errorf("expected %d output paths but got %d", tc.expectOutputPathsCount, len(outputPaths))
-			}
-		})
-	}
-}
-
-func TestQPdf_Convert(t *testing.T) {
-	engine := new(QPdf)
-	err := engine.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(QPdf)
-	_, 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(QPdf)
-	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/webhook/middleware_test.go

@@ -1,582 +0,0 @@
-package webhook
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"math/rand"
-	"mime/multipart"
-	"net/http"
-	"net/http/httptest"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/dlclark/regexp2"
-	"github.com/labstack/echo/v4"
-	"go.uber.org/zap"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/modules/api"
-)
-
-func TestWebhookMiddlewareGuards(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
-	}
-
-	buildWebhookModule := func() *Webhook {
-		return &Webhook{
-			allowList:      regexp2.MustCompile("", 0),
-			denyList:       regexp2.MustCompile("", 0),
-			errorAllowList: regexp2.MustCompile("", 0),
-			errorDenyList:  regexp2.MustCompile("", 0),
-			maxRetry:       0,
-			retryMinWait:   0,
-			retryMaxWait:   0,
-			disable:        false,
-		}
-	}
-
-	for _, tc := range []struct {
-		scenario         string
-		request          *http.Request
-		mod              *Webhook
-		next             echo.HandlerFunc
-		noDeadline       bool
-		expectError      bool
-		expectHttpError  bool
-		expectHttpStatus int
-	}{
-		{
-			scenario: "no webhook URL, skip middleware",
-			request:  buildMultipartFormDataRequest(),
-			mod:      buildWebhookModule(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return nil
-				}
-			}(),
-			noDeadline:      false,
-			expectError:     false,
-			expectHttpError: false,
-		},
-		{
-			scenario: "no webhook error URL",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				return req
-			}(),
-			mod:              buildWebhookModule(),
-			noDeadline:       false,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "context has no deadline",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				return req
-			}(),
-			mod:         buildWebhookModule(),
-			noDeadline:  true,
-			expectError: true,
-		},
-		{
-			scenario: "webhook URL is not allowed",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				return req
-			}(),
-			mod: func() *Webhook {
-				mod := buildWebhookModule()
-				mod.allowList = regexp2.MustCompile("bar", 0)
-				return mod
-			}(),
-			noDeadline:  false,
-			expectError: true,
-		},
-		{
-			scenario: "webhook URL is denied",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				return req
-			}(),
-			mod: func() *Webhook {
-				mod := buildWebhookModule()
-				mod.denyList = regexp2.MustCompile("foo", 0)
-				return mod
-			}(),
-			noDeadline:  false,
-			expectError: true,
-		},
-		{
-			scenario: "webhook error URL is not allowed",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				return req
-			}(),
-			mod: func() *Webhook {
-				mod := buildWebhookModule()
-				mod.errorAllowList = regexp2.MustCompile("foo", 0)
-				return mod
-			}(),
-			noDeadline:  false,
-			expectError: true,
-		},
-		{
-			scenario: "webhook error URL is denied",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				return req
-			}(),
-			mod: func() *Webhook {
-				mod := buildWebhookModule()
-				mod.errorDenyList = regexp2.MustCompile("bar", 0)
-				return mod
-			}(),
-			noDeadline:  false,
-			expectError: true,
-		},
-		{
-			scenario: "invalid webhook method (GET)",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Method", http.MethodGet)
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				return req
-			}(),
-			mod:              buildWebhookModule(),
-			noDeadline:       false,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid webhook error method (GET)",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				req.Header.Set("Gotenberg-Webhook-Error-Method", http.MethodGet)
-				return req
-			}(),
-			mod:              buildWebhookModule(),
-			noDeadline:       false,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "valid webhook method (POST) but invalid webhook error method (GET)",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Method", http.MethodPost)
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				req.Header.Set("Gotenberg-Webhook-Error-Method", http.MethodGet)
-				return req
-			}(),
-			mod:              buildWebhookModule(),
-			noDeadline:       false,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "valid webhook method (PATH) but invalid webhook error method (GET)",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Method", http.MethodPatch)
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				req.Header.Set("Gotenberg-Webhook-Error-Method", http.MethodGet)
-				return req
-			}(),
-			mod:              buildWebhookModule(),
-			noDeadline:       false,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "valid webhook method (PUT) but invalid webhook error method (GET)",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Method", http.MethodPut)
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				req.Header.Set("Gotenberg-Webhook-Error-Method", http.MethodGet)
-				return req
-			}(),
-			mod:              buildWebhookModule(),
-			noDeadline:       false,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-		{
-			scenario: "invalid webhook extra HTTP headers",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Webhook-Url", "foo")
-				req.Header.Set("Gotenberg-Webhook-Error-Url", "bar")
-				req.Header.Set("Gotenberg-Webhook-Extra-Http-Headers", "foo")
-				return req
-			}(),
-			mod:              buildWebhookModule(),
-			noDeadline:       false,
-			expectError:      true,
-			expectHttpError:  true,
-			expectHttpStatus: http.StatusBadRequest,
-		},
-	} {
-		t.Run(tc.scenario, func(t *testing.T) {
-			srv := echo.New()
-			srv.HideBanner = true
-			srv.HidePort = true
-
-			c := srv.NewContext(tc.request, httptest.NewRecorder())
-
-			if tc.noDeadline {
-				ctx := &api.ContextMock{Context: &api.Context{Context: context.Background()}}
-				ctx.SetEchoContext(c)
-				c.Set("context", ctx.Context)
-				c.Set("cancel", func() context.CancelFunc {
-					return nil
-				}())
-			} else {
-				timeoutCtx, cancel := context.WithTimeout(context.Background(), time.Duration(10)*time.Second)
-				ctx := &api.ContextMock{Context: &api.Context{Context: timeoutCtx}}
-				ctx.SetEchoContext(c)
-				c.Set("context", ctx.Context)
-				c.Set("cancel", cancel)
-			}
-
-			err := webhookMiddleware(tc.mod).Handler(tc.next)(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)
-				}
-			}
-		})
-	}
-}
-
-func TestWebhookMiddlewareAsynchronousProcess(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
-	}
-
-	buildWebhookModule := func() *Webhook {
-		return &Webhook{
-			allowList:      regexp2.MustCompile("", 0),
-			denyList:       regexp2.MustCompile("", 0),
-			errorAllowList: regexp2.MustCompile("", 0),
-			errorDenyList:  regexp2.MustCompile("", 0),
-			maxRetry:       0,
-			retryMinWait:   0,
-			retryMaxWait:   0,
-			clientTimeout:  time.Duration(30) * time.Second,
-			disable:        false,
-		}
-	}
-
-	for _, tc := range []struct {
-		scenario                      string
-		request                       *http.Request
-		mod                           *Webhook
-		next                          echo.HandlerFunc
-		expectWebhookContentType      string
-		expectWebhookMethod           string
-		expectWebhookExtraHttpHeaders map[string]string
-		expectWebhookFilename         string
-		expectWebhookErrorStatus      int
-		expectWebhookErrorMessage     string
-		returnedError                 *echo.HTTPError
-	}{
-		{
-			scenario: "next handler return an error",
-			request:  buildMultipartFormDataRequest(),
-			mod:      buildWebhookModule(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return errors.New("foo")
-				}
-			}(),
-			expectWebhookContentType:  echo.MIMEApplicationJSON,
-			expectWebhookMethod:       http.MethodPost,
-			expectWebhookErrorStatus:  http.StatusInternalServerError,
-			expectWebhookErrorMessage: http.StatusText(http.StatusInternalServerError),
-		},
-		{
-			scenario: "next handler return an HTTP error",
-			request:  buildMultipartFormDataRequest(),
-			mod:      buildWebhookModule(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					return api.NewSentinelHttpError(http.StatusBadRequest, http.StatusText(http.StatusBadRequest))
-				}
-			}(),
-			expectWebhookContentType:  echo.MIMEApplicationJSON,
-			expectWebhookMethod:       http.MethodPost,
-			expectWebhookErrorStatus:  http.StatusBadRequest,
-			expectWebhookErrorMessage: http.StatusText(http.StatusBadRequest),
-		},
-		{
-			scenario: "success",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Output-Filename", "foo")
-				req.Header.Set("Gotenberg-Webhook-Extra-Http-Headers", `{ "foo": "bar" }`)
-				return req
-			}(),
-			mod: buildWebhookModule(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					ctx := c.Get("context").(*api.Context)
-					return ctx.AddOutputPaths("/tests/test/testdata/api/sample2.pdf")
-				}
-			}(),
-			expectWebhookContentType:      "application/pdf",
-			expectWebhookMethod:           http.MethodPost,
-			expectWebhookFilename:         "foo",
-			expectWebhookExtraHttpHeaders: map[string]string{"foo": "bar"},
-		},
-		{
-			scenario: "success (return an error)",
-			request: func() *http.Request {
-				req := buildMultipartFormDataRequest()
-				req.Header.Set("Gotenberg-Output-Filename", "foo")
-				return req
-			}(),
-			mod: buildWebhookModule(),
-			next: func() echo.HandlerFunc {
-				return func(c echo.Context) error {
-					ctx := c.Get("context").(*api.Context)
-					return ctx.AddOutputPaths("/tests/test/testdata/api/sample1.pdf")
-				}
-			}(),
-			returnedError:             echo.ErrInternalServerError,
-			expectWebhookContentType:  echo.MIMEApplicationJSON,
-			expectWebhookMethod:       http.MethodPost,
-			expectWebhookErrorStatus:  http.StatusInternalServerError,
-			expectWebhookErrorMessage: http.StatusText(http.StatusInternalServerError),
-			expectWebhookFilename:     "foo",
-		},
-	} {
-		func() {
-			srv := echo.New()
-			srv.HideBanner = true
-			srv.HidePort = true
-
-			c := srv.NewContext(tc.request, httptest.NewRecorder())
-			c.Set("logger", zap.NewNop())
-			c.Set("traceHeader", "Gotenberg-Trace")
-			c.Set("trace", "foo")
-			c.Set("startTime", time.Now())
-
-			timeoutCtx, cancel := context.WithTimeout(context.Background(), time.Duration(10)*time.Second)
-			ctx := &api.ContextMock{Context: &api.Context{Context: timeoutCtx}}
-			ctx.SetLogger(zap.NewNop())
-			ctx.SetEchoContext(c)
-
-			c.Set("context", ctx.Context)
-			c.Set("cancel", cancel)
-
-			webhook := echo.New()
-			webhook.HideBanner = true
-			webhook.HidePort = true
-			webhookPort := rand.Intn(65535-1025+1) + 1025
-
-			c.Request().Header.Set("Gotenberg-Webhook-Url", fmt.Sprintf("http://localhost:%d/", webhookPort))
-			c.Request().Header.Set("Gotenberg-Webhook-Error-Url", fmt.Sprintf("http://localhost:%d/", webhookPort))
-
-			errChan := make(chan error, 1)
-
-			webhook.POST(
-				"/",
-				func() echo.HandlerFunc {
-					return func(c echo.Context) error {
-						contentType := c.Request().Header.Get(echo.HeaderContentType)
-						if contentType != tc.expectWebhookContentType {
-							t.Errorf("expected '%s' '%s' but got '%s'", echo.HeaderContentType, tc.expectWebhookContentType, contentType)
-						}
-
-						trace := c.Request().Header.Get("Gotenberg-Trace")
-						if trace != "foo" {
-							t.Errorf("expected '%s' '%s' but got '%s'", "Gotenberg-Trace", "foo", trace)
-						}
-
-						method := c.Request().Method
-						if method != tc.expectWebhookMethod {
-							t.Errorf("expected HTTP method '%s' but got '%s'", tc.expectWebhookMethod, method)
-						}
-
-						for key, expect := range tc.expectWebhookExtraHttpHeaders {
-							actual := c.Request().Header.Get(key)
-
-							if actual != expect {
-								t.Errorf("expected '%s' '%s' but got '%s'", key, expect, actual)
-							}
-						}
-
-						if contentType == echo.MIMEApplicationJSON {
-							body, err := io.ReadAll(c.Request().Body)
-							if err != nil {
-								errChan <- err
-								return nil
-							}
-
-							result := struct {
-								Status  int    `json:"status"`
-								Message string `json:"message"`
-							}{}
-
-							err = json.Unmarshal(body, &result)
-							if err != nil {
-								errChan <- err
-								return nil
-							}
-
-							if result.Status != tc.expectWebhookErrorStatus {
-								t.Errorf("expected status %d from JSON but got %d", tc.expectWebhookErrorStatus, result.Status)
-							}
-
-							if result.Message != tc.expectWebhookErrorMessage {
-								t.Errorf("expected message '%s' from JSON but got '%s'", tc.expectWebhookErrorMessage, result.Message)
-							}
-
-							errChan <- nil
-							return nil
-						}
-
-						contentLength := c.Request().Header.Get(echo.HeaderContentLength)
-						if contentLength == "" {
-							t.Errorf("expected non empty '%s'", echo.HeaderContentLength)
-						}
-
-						contentDisposition := c.Request().Header.Get(echo.HeaderContentDisposition)
-						if !strings.Contains(contentDisposition, tc.expectWebhookFilename) {
-							t.Errorf("expected '%s' '%s' to contain '%s'", echo.HeaderContentDisposition, contentDisposition, tc.expectWebhookFilename)
-						}
-
-						body, err := io.ReadAll(c.Request().Body)
-						if err != nil {
-							errChan <- err
-							return nil
-						}
-
-						if body == nil || len(body) == 0 {
-							t.Error("expected non nil body")
-						}
-
-						errChan <- nil
-
-						if tc.returnedError != nil {
-							return tc.returnedError
-						}
-
-						return nil
-					}
-				}(),
-			)
-
-			go func() {
-				err := webhook.Start(fmt.Sprintf(":%d", webhookPort))
-				if !errors.Is(err, http.ErrServerClosed) {
-					t.Errorf("expected no error but got: %v", err)
-				}
-			}()
-
-			defer func() {
-				err := webhook.Shutdown(context.TODO())
-				if err != nil {
-					t.Errorf("expected no error but got: %v", err)
-				}
-			}()
-
-			err := webhookMiddleware(tc.mod).Handler(tc.next)(c)
-			if err != nil && !errors.Is(err, api.ErrAsyncProcess) {
-				t.Errorf("expected no error but got: %v", err)
-			}
-
-			err = <-errChan
-			if err != nil {
-				t.Errorf("expected no error but got: %v", err)
-			}
-		}()
-	}
-}

pkg/modules/webhook/webhook_test.go

@@ -1,65 +0,0 @@
-package webhook
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-)
-
-func TestWebhook_Descriptor(t *testing.T) {
-	descriptor := new(Webhook).Descriptor()
-
-	actual := reflect.TypeOf(descriptor.New())
-	expect := reflect.TypeOf(new(Webhook))
-
-	if actual != expect {
-		t.Errorf("expected '%s' but got '%s'", expect, actual)
-	}
-}
-
-func TestWebhook_Provision(t *testing.T) {
-	mod := new(Webhook)
-	ctx := gotenberg.NewContext(
-		gotenberg.ParsedFlags{
-			FlagSet: new(Webhook).Descriptor().FlagSet,
-		},
-		nil,
-	)
-
-	err := mod.Provision(ctx)
-	if err != nil {
-		t.Errorf("expected no error but got: %v", err)
-	}
-}
-
-func TestWebhook_Middlewares(t *testing.T) {
-	for _, tc := range []struct {
-		scenario          string
-		disable           bool
-		expectMiddlewares int
-	}{
-		{
-			scenario:          "webhook disabled",
-			disable:           true,
-			expectMiddlewares: 0,
-		},
-		{
-			scenario:          "webhook enabled",
-			disable:           false,
-			expectMiddlewares: 1,
-		},
-	} {
-		mod := new(Webhook)
-		mod.disable = tc.disable
-
-		middlewares, err := mod.Middlewares()
-		if err != nil {
-			t.Fatalf("expected no error but got: %v", err)
-		}
-
-		if tc.expectMiddlewares != len(middlewares) {
-			t.Errorf("expected %d middlewares but got %d", tc.expectMiddlewares, len(middlewares))
-		}
-	}
-}

scripts/release.sh

@@ -1,84 +0,0 @@
-#!/bin/bash
-
-set -e
-
-# Args.
-GOLANG_VERSION="$1"
-GOTENBERG_VERSION="$2"
-GOTENBERG_USER_GID="$3"
-GOTENBERG_USER_UID="$4"
-NOTO_COLOR_EMOJI_VERSION="$5"
-PDFTK_VERSION="$6"
-PDFCPU_VERSION="$7"
-DOCKER_REGISTRY="$8"
-DOCKER_REPOSITORY="$9"
-LINUX_AMD64_RELEASE="${10}"
-
-# Find out if given version is "semver".
-GOTENBERG_VERSION="${GOTENBERG_VERSION//v}"
-IFS='.' read -ra SEMVER <<< "$GOTENBERG_VERSION"
-VERSION_LENGTH=${#SEMVER[@]}
-TAGS=()
-TAGS_CLOUD_RUN=()
-
-if [ "$VERSION_LENGTH" -eq 3 ]; then
-  MAJOR="${SEMVER[0]}"
-  MINOR="${SEMVER[1]}"
-  PATCH="${SEMVER[2]}"
-
-  TAGS+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:latest")
-  TAGS+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$MAJOR")
-  TAGS+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$MAJOR.$MINOR")
-  TAGS+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$MAJOR.$MINOR.$PATCH")
-
-  TAGS_CLOUD_RUN+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:latest-cloudrun")
-  TAGS_CLOUD_RUN+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$MAJOR-cloudrun")
-  TAGS_CLOUD_RUN+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$MAJOR.$MINOR-cloudrun")
-  TAGS_CLOUD_RUN+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$MAJOR.$MINOR.$PATCH-cloudrun")
-else
-    # Normalizes version.
-    GOTENBERG_VERSION="${GOTENBERG_VERSION// /-}"
-    GOTENBERG_VERSION="$(echo "$GOTENBERG_VERSION" | tr -cd '[:alnum:]._\-')"
-
-    if [[ "$GOTENBERG_VERSION" =~ ^[\.\-] ]]; then
-      GOTENBERG_VERSION="_${GOTENBERG_VERSION#?}"
-    fi
-
-    if [ "${#GOTENBERG_VERSION}" -gt 128 ]; then
-      GOTENBERG_VERSION="${GOTENBERG_VERSION:0:128}"
-    fi
-
-  TAGS+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$GOTENBERG_VERSION")
-  TAGS_CLOUD_RUN+=("-t" "$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$GOTENBERG_VERSION-cloudrun")
-fi
-
-# Multi-arch build takes a lot of time.
-if [ "$LINUX_AMD64_RELEASE" = true ]; then
-    PLATFORM_FLAG="--platform linux/amd64"
-else
-    PLATFORM_FLAG="--platform linux/amd64,linux/arm64,linux/386,linux/arm/v7"
-fi
-
-docker buildx build \
-  --build-arg GOLANG_VERSION="$GOLANG_VERSION" \
-  --build-arg GOTENBERG_VERSION="$GOTENBERG_VERSION" \
-  --build-arg GOTENBERG_USER_GID="$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" \
-  $PLATFORM_FLAG \
-  "${TAGS[@]}" \
-  --push \
-  -f build/Dockerfile .
-
-# Cloud Run variant.
-# Only linux/amd64! See https://github.com/gotenberg/gotenberg/issues/505#issuecomment-1264679278.
-docker buildx build \
-  --build-arg DOCKER_REGISTRY="$DOCKER_REGISTRY" \
-  --build-arg DOCKER_REPOSITORY="$DOCKER_REPOSITORY" \
-  --build-arg GOTENBERG_VERSION="$GOTENBERG_VERSION" \
-  --platform linux/amd64 \
-  "${TAGS_CLOUD_RUN[@]}" \
-  --push \
-  -f build/Dockerfile.cloudrun .

test/Dockerfile

@@ -1,49 +0,0 @@
-ARG GOLANG_VERSION
-ARG DOCKER_REGISTRY
-ARG DOCKER_REPOSITORY
-ARG GOTENBERG_VERSION
-ARG GOLANGCI_LINT_VERSION
-
-FROM golang:$GOLANG_VERSION-bookworm AS golang
-
-# We're extending the Gotenberg's Docker image because our code relies on external
-# dependencies like Google Chrome, LibreOffice, etc.
-FROM $DOCKER_REGISTRY/$DOCKER_REPOSITORY:$GOTENBERG_VERSION
-
-USER root
-
-ENV GOPATH=/go
-ENV PATH=$GOPATH/bin:/usr/local/go/bin:$PATH
-ENV CGO_ENABLED=1
-
-COPY --from=golang /usr/local/go /usr/local/go
-
-RUN apt-get update -qq &&\
-    apt-get install -y -qq --no-install-recommends  \
-    sudo \
-    # gcc for cgo.
-    g++ \
-    gcc \
-    libc6-dev \
-    make \
-    pkg-config &&\
-    rm -rf /var/lib/apt/lists/* &&\
-    mkdir -p "$GOPATH/src" "$GOPATH/bin" &&\
-    chmod -R 777 "$GOPATH" &&\
-    adduser gotenberg sudo &&\
-    echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers &&\
-    # We cannot use $PATH in the next command (print $PATH instead of the environment variable value).
-    sed -i 's#/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin#/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/go/bin:/usr/local/go/bin#g' /etc/sudoers &&\
-    curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin $GOLANGCI_LINT_VERSION &&\
-    go install mvdan.cc/gofumpt@latest &&\
-    go install github.com/daixiang0/gci@latest
-
-COPY ./test/docker-entrypoint.sh /usr/bin/docker-entrypoint.sh
-COPY ./test/golint.sh /usr/bin/golint
-COPY ./test/gotest.sh /usr/bin/gotest
-COPY ./test/gotodos.sh /usr/bin/gotodos
-
-# Pristine working directory.
-WORKDIR /tests
-
-ENTRYPOINT [ "/usr/bin/tini", "--", "docker-entrypoint.sh" ]

test/docker-entrypoint.sh

@@ -1,59 +0,0 @@
-#!/bin/bash
-
-# This entrypoint allows us to set the UID and GID of the host user so that
-# our testing environment does not override files permissions from the host.
-# Credits: https://github.com/thecodingmachine/docker-images-php.
-
-set +e
-mkdir -p testing_file_system_rights.foo
-chmod 700 testing_file_system_rights.foo
-su gotenberg -c "touch testing_file_system_rights.foo/foo > /dev/null 2>&1"
-HAS_CONSISTENT_RIGHTS=$?
-
-if [[ "$HAS_CONSISTENT_RIGHTS" != "0" ]]; then
-    # If not specified, the DOCKER_USER is the owner of the current working directory (heuristic!).
-    DOCKER_USER=$(stat -c '%u' "$(pwd)")
-else
-    # macOs or Windows.
-    # Note: in most cases, we don't care about the rights (they are not respected).
-    FILE_OWNER=$(stat -c '%u' "testing_file_system_rights.foo/foo")
-    if [[ "$FILE_OWNER" == "0" ]]; then
-        # If root, we are likely on a Windows host.
-        # All files will belong to root, but it does not matter as everybody can write/delete
-        # those (0777 access rights).
-        DOCKER_USER=gotenberg
-    else
-        # In case of a NFS mount (common on macOS), the created files will belong to the NFS user.
-        DOCKER_USER=$FILE_OWNER
-    fi
-fi
-
-rm -rf testing_file_system_rights.foo
-set -e
-unset HAS_CONSISTENT_RIGHTS
-
-# Note: DOCKER_USER is either a username (if the user exists in the container),
-# otherwise a user ID (a user from the host).
-
-# DOCKER_USER is an ID.
-if [[ "$DOCKER_USER" =~ ^[0-9]+$ ]] ; then
-    # Let's change the gotenberg user's ID in order to match this free ID.
-    usermod -u "$DOCKER_USER" -G sudo gotenberg
-    DOCKER_USER=gotenberg
-fi
-
-DOCKER_USER_ID=$(id -ur $DOCKER_USER)
-
-# Fix access rights to stdout and stderr.
-set +e
-chown $DOCKER_USER /proc/self/fd/{1,2}
-set -e
-
-# Install modules.
-set -x
-go mod download
-go mod tidy
-set +x
-
-# Run the command with the correct user.
-exec "sudo" "-E" "-H" "-u" "#$DOCKER_USER_ID" "$@"

test/golint.sh

@@ -1,5 +0,0 @@
-#!/bin/bash
-
-set -x
-
-golangci-lint run

test/gotest.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-
-set -x
-
-go test -race -covermode=atomic -coverprofile=/tests/coverage.txt ./...
-RESULT=$?
-
-go tool cover -html=coverage.txt -o /tests/coverage.html
-
-exit $RESULT

test/gotodos.sh

@@ -1,8 +0,0 @@
-#!/bin/bash
-
-set -x
-
-golangci-lint run \
-	--no-config \
-	--disable-all \
-	--enable godox