docs(CONTRIBUTING.md): remove do not push instruction [skip ci]

Bumps [prettier](https://github.com/prettier/prettier) from 3.8.1 to 3.8.2.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/3.8.1...3.8.2)

---
updated-dependencies:
- dependency-name: prettier
  dependency-version: 3.8.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.bruno/Chromium/Convert/HTML to PDF.bru

@@ -0,0 +1,76 @@
+meta {
+  name: HTML to PDF
+  type: http
+  seq: 2
+}
+
+post {
+  url: {{baseUrl}}/forms/chromium/convert/html
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../test/integration/testdata/page-1-html/index.html)
+  ~landscape: false
+  ~printBackground: false
+  ~scale: 1.0
+  ~singlePage: false
+  ~paperWidth: 8.5
+  ~paperHeight: 11
+  ~marginTop: 0.39
+  ~marginBottom: 0.39
+  ~marginLeft: 0.39
+  ~marginRight: 0.39
+  ~nativePageRanges: 1-2
+  ~preferCssPageSize: false
+  ~generateDocumentOutline: false
+  ~generateTaggedPdf: false
+  ~skipNetworkIdleEvent: false
+  ~failOnHttpStatusCodes: [499,599]
+  ~failOnResourceHttpStatusCodes: []
+  ~ignoreResourceHttpStatusDomains: []
+  ~failOnResourceLoadingFailed: false
+  ~failOnConsoleExceptions: false
+  ~waitDelay: 0s
+  ~waitWindowStatus:
+  ~waitForExpression:
+  ~waitForSelector:
+  ~cookies: [{"name":"my_cookie","value":"my_value","domain":"example.com"}]
+  ~userAgent:
+  ~extraHttpHeaders: {"X-Custom-Header":"value"}
+  ~emulatedMediaType: print
+  ~emulatedMediaFeatures: {"prefers-color-scheme":"dark"}
+  ~omitBackground: false
+  ~splitMode: intervals
+  ~splitSpan: 1
+  ~splitUnify: false
+  ~pdfa: PDF/A-1b
+  ~pdfua: true
+  ~metadata: {"Author":"Bruno","Title":"Test"}
+  ~userPassword:
+  ~ownerPassword:
+  ~embeds: @file(../test/integration/testdata/embed_1.xml)
+  ~embeds: @file(../test/integration/testdata/embed_2.xml)
+  ~embedsMetadata: {"embed_1.xml":{"mimeType":"text/xml","relationship":"Data"}, "embed_2.xml":{"mimeType":"text/xml","relationship":"Data"}}
+  ~watermarkSource: text
+  ~watermarkExpression: CONFIDENTIAL
+  ~watermarkPages:
+  ~watermarkOptions: {"scale":"0.5 abs","rot":"45","fillcolor":"#FF0000"}
+  ~stampSource: text
+  ~stampExpression: DRAFT
+  ~stampPages:
+  ~stampOptions: {"scale":"0.5 abs","rot":"45"}
+  ~rotateAngle: 90
+  ~rotatePages:
+}
+
+headers {
+  ~Gotenberg-Output-Filename: my-file
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/Chromium/Convert/Markdown to PDF.bru

@@ -0,0 +1,77 @@
+meta {
+  name: Markdown to PDF
+  type: http
+  seq: 3
+}
+
+post {
+  url: {{baseUrl}}/forms/chromium/convert/markdown
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page-1-markdown/index.html)
+  files: @file(../../test/integration/testdata/page-1-markdown/page_1.md)
+  ~landscape: false
+  ~printBackground: false
+  ~scale: 1.0
+  ~singlePage: false
+  ~paperWidth: 8.5
+  ~paperHeight: 11
+  ~marginTop: 0.39
+  ~marginBottom: 0.39
+  ~marginLeft: 0.39
+  ~marginRight: 0.39
+  ~nativePageRanges: 1-2
+  ~preferCssPageSize: false
+  ~generateDocumentOutline: false
+  ~generateTaggedPdf: false
+  ~skipNetworkIdleEvent: false
+  ~failOnHttpStatusCodes: [499,599]
+  ~failOnResourceHttpStatusCodes: []
+  ~ignoreResourceHttpStatusDomains: []
+  ~failOnResourceLoadingFailed: false
+  ~failOnConsoleExceptions: false
+  ~waitDelay: 0s
+  ~waitWindowStatus:
+  ~waitForExpression:
+  ~waitForSelector:
+  ~cookies: [{"name":"my_cookie","value":"my_value","domain":"example.com"}]
+  ~userAgent:
+  ~extraHttpHeaders: {"X-Custom-Header":"value"}
+  ~emulatedMediaType: print
+  ~emulatedMediaFeatures: {"prefers-color-scheme":"dark"}
+  ~omitBackground: false
+  ~splitMode: intervals
+  ~splitSpan: 1
+  ~splitUnify: false
+  ~pdfa: PDF/A-1b
+  ~pdfua: true
+  ~metadata: {"Author":"Bruno","Title":"Test"}
+  ~userPassword:
+  ~ownerPassword:
+  ~embeds: @file(../test/integration/testdata/embed_1.xml)
+  ~embeds: @file(../test/integration/testdata/embed_2.xml)
+  ~embedsMetadata: {"embed_1.xml":{"mimeType":"text/xml","relationship":"Data"}, "embed_2.xml":{"mimeType":"text/xml","relationship":"Data"}}
+  ~watermarkSource: text
+  ~watermarkExpression: CONFIDENTIAL
+  ~watermarkPages:
+  ~watermarkOptions: {"scale":"0.5 abs","rot":"45","fillcolor":"#FF0000"}
+  ~stampSource: text
+  ~stampExpression: DRAFT
+  ~stampPages:
+  ~stampOptions: {"scale":"0.5 abs","rot":"45"}
+  ~rotateAngle: 90
+  ~rotatePages:
+}
+
+headers {
+  ~Gotenberg-Output-Filename: my-file
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/Chromium/Convert/URL to PDF.bru

@@ -0,0 +1,76 @@
+meta {
+  name: URL to PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/chromium/convert/url
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  url: https://example.com
+  ~landscape: false
+  ~printBackground: false
+  ~scale: 1.0
+  ~singlePage: false
+  ~paperWidth: 8.5
+  ~paperHeight: 11
+  ~marginTop: 0.39
+  ~marginBottom: 0.39
+  ~marginLeft: 0.39
+  ~marginRight: 0.39
+  ~nativePageRanges: 1-2
+  ~preferCssPageSize: false
+  ~generateDocumentOutline: false
+  ~generateTaggedPdf: false
+  ~skipNetworkIdleEvent: false
+  ~failOnHttpStatusCodes: [499,599]
+  ~failOnResourceHttpStatusCodes: []
+  ~ignoreResourceHttpStatusDomains: []
+  ~failOnResourceLoadingFailed: false
+  ~failOnConsoleExceptions: false
+  ~waitDelay: 0s
+  ~waitWindowStatus:
+  ~waitForExpression:
+  ~waitForSelector:
+  ~cookies: [{"name":"my_cookie","value":"my_value","domain":"example.com"}]
+  ~userAgent:
+  ~extraHttpHeaders: {"X-Custom-Header":"value"}
+  ~emulatedMediaType: print
+  ~emulatedMediaFeatures: {"prefers-color-scheme":"dark"}
+  ~omitBackground: false
+  ~splitMode: intervals
+  ~splitSpan: 1
+  ~splitUnify: false
+  ~pdfa: PDF/A-1b
+  ~pdfua: true
+  ~metadata: {"Author":"Bruno","Title":"Test"}
+  ~userPassword:
+  ~ownerPassword:
+  ~embeds: @file(../test/integration/testdata/embed_1.xml)
+  ~embeds: @file(../test/integration/testdata/embed_2.xml)
+  ~embedsMetadata: {"embed_1.xml":{"mimeType":"text/xml","relationship":"Data"}, "embed_2.xml":{"mimeType":"text/xml","relationship":"Data"}}
+  ~watermarkSource: text
+  ~watermarkExpression: CONFIDENTIAL
+  ~watermarkPages:
+  ~watermarkOptions: {"scale":"0.5 abs","rot":"45","fillcolor":"#FF0000"}
+  ~stampSource: text
+  ~stampExpression: DRAFT
+  ~stampPages:
+  ~stampOptions: {"scale":"0.5 abs","rot":"45"}
+  ~rotateAngle: 90
+  ~rotatePages:
+}
+
+headers {
+  ~Gotenberg-Output-Filename: my-file
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/Chromium/Screenshot/HTML Screenshot.bru

@@ -0,0 +1,47 @@
+meta {
+  name: HTML Screenshot
+  type: http
+  seq: 2
+}
+
+post {
+  url: {{baseUrl}}/forms/chromium/screenshot/html
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page-1-html/index.html)
+  ~width: 800
+  ~height: 600
+  ~clip: false
+  ~format: png
+  ~quality: 100
+  ~optimizeForSpeed: false
+  ~skipNetworkIdleEvent: false
+  ~failOnHttpStatusCodes: [499,599]
+  ~failOnResourceHttpStatusCodes: []
+  ~ignoreResourceHttpStatusDomains: []
+  ~failOnResourceLoadingFailed: false
+  ~failOnConsoleExceptions: false
+  ~waitDelay: 0s
+  ~waitWindowStatus:
+  ~waitForExpression:
+  ~waitForSelector:
+  ~cookies: [{"name":"my_cookie","value":"my_value","domain":"example.com"}]
+  ~userAgent:
+  ~extraHttpHeaders: {"X-Custom-Header":"value"}
+  ~emulatedMediaType: screen
+  ~emulatedMediaFeatures: {"prefers-color-scheme":"dark"}
+  ~omitBackground: false
+}
+
+headers {
+  ~Gotenberg-Output-Filename: my-screenshot
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/Chromium/Screenshot/Markdown Screenshot.bru

@@ -0,0 +1,48 @@
+meta {
+  name: Markdown Screenshot
+  type: http
+  seq: 3
+}
+
+post {
+  url: {{baseUrl}}/forms/chromium/screenshot/markdown
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page-1-markdown/index.html)
+  files: @file(../../test/integration/testdata/page-1-markdown/page_1.md)
+  ~width: 800
+  ~height: 600
+  ~clip: false
+  ~format: png
+  ~quality: 100
+  ~optimizeForSpeed: false
+  ~skipNetworkIdleEvent: false
+  ~failOnHttpStatusCodes: [499,599]
+  ~failOnResourceHttpStatusCodes: []
+  ~ignoreResourceHttpStatusDomains: []
+  ~failOnResourceLoadingFailed: false
+  ~failOnConsoleExceptions: false
+  ~waitDelay: 0s
+  ~waitWindowStatus:
+  ~waitForExpression:
+  ~waitForSelector:
+  ~cookies: [{"name":"my_cookie","value":"my_value","domain":"example.com"}]
+  ~userAgent:
+  ~extraHttpHeaders: {"X-Custom-Header":"value"}
+  ~emulatedMediaType: screen
+  ~emulatedMediaFeatures: {"prefers-color-scheme":"dark"}
+  ~omitBackground: false
+}
+
+headers {
+  ~Gotenberg-Output-Filename: my-screenshot
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/Chromium/Screenshot/URL Screenshot.bru

@@ -0,0 +1,47 @@
+meta {
+  name: URL Screenshot
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/chromium/screenshot/url
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  url: https://example.com
+  ~width: 800
+  ~height: 600
+  ~clip: false
+  ~format: png
+  ~quality: 100
+  ~optimizeForSpeed: false
+  ~skipNetworkIdleEvent: false
+  ~failOnHttpStatusCodes: [499,599]
+  ~failOnResourceHttpStatusCodes: []
+  ~ignoreResourceHttpStatusDomains: []
+  ~failOnResourceLoadingFailed: false
+  ~failOnConsoleExceptions: false
+  ~waitDelay: 0s
+  ~waitWindowStatus:
+  ~waitForExpression:
+  ~waitForSelector:
+  ~cookies: [{"name":"my_cookie","value":"my_value","domain":"example.com"}]
+  ~userAgent:
+  ~extraHttpHeaders: {"X-Custom-Header":"value"}
+  ~emulatedMediaType: screen
+  ~emulatedMediaFeatures: {"prefers-color-scheme":"dark"}
+  ~omitBackground: false
+}
+
+headers {
+  ~Gotenberg-Output-Filename: my-screenshot
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/Health & Info/Debug.bru

@@ -0,0 +1,11 @@
+meta {
+  name: Debug
+  type: http
+  seq: 3
+}
+
+get {
+  url: {{baseUrl}}/debug
+  body: none
+  auth: none
+}

.bruno/Health & Info/Health.bru

@@ -0,0 +1,11 @@
+meta {
+  name: Health
+  type: http
+  seq: 1
+}
+
+get {
+  url: {{baseUrl}}/health
+  body: none
+  auth: none
+}

.bruno/Health & Info/Prometheus Metrics.bru

@@ -0,0 +1,11 @@
+meta {
+  name: Prometheus Metrics
+  type: http
+  seq: 4
+}
+
+get {
+  url: {{baseUrl}}/prometheus/metrics
+  body: none
+  auth: none
+}

.bruno/Health & Info/Version.bru

@@ -0,0 +1,11 @@
+meta {
+  name: Version
+  type: http
+  seq: 2
+}
+
+get {
+  url: {{baseUrl}}/version
+  body: none
+  auth: none
+}

.bruno/LibreOffice/Convert to PDF.bru

@@ -0,0 +1,93 @@
+meta {
+  name: Convert to PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/libreoffice/convert
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../test/integration/testdata/page_1.docx)
+  ~password:
+  ~landscape: false
+  ~nativePageRanges:
+  ~updateIndexes: false
+  ~exportFormFields: true
+  ~allowDuplicateFieldNames: false
+  ~exportBookmarks: true
+  ~exportBookmarksToPdfDestination: false
+  ~exportPlaceholders: false
+  ~exportNotes: false
+  ~exportNotesPages: false
+  ~exportOnlyNotesPages: false
+  ~exportNotesInMargin: false
+  ~convertOooTargetToPdfTarget: false
+  ~exportLinksRelativeFsys: false
+  ~exportHiddenSlides: false
+  ~skipEmptyPages: false
+  ~addOriginalDocumentAsStream: false
+  ~singlePageSheets: false
+  ~initialView: 0
+  ~initialPage: 1
+  ~magnification: 0
+  ~zoom: 100
+  ~pageLayout: 0
+  ~firstPageOnLeft: false
+  ~resizeWindowToInitialPage: false
+  ~centerWindow: false
+  ~openInFullScreenMode: false
+  ~displayPDFDocumentTitle: true
+  ~hideViewerMenubar: false
+  ~hideViewerToolbar: false
+  ~hideViewerWindowControls: false
+  ~useTransitionEffects: true
+  ~openBookmarkLevels: -1
+  ~losslessImageCompression: false
+  ~quality: 90
+  ~reduceImageResolution: false
+  ~maxImageResolution: 300
+  ~nativeWatermarkText:
+  ~nativeWatermarkColor: 0
+  ~nativeWatermarkFontHeight: 0
+  ~nativeWatermarkRotateAngle: 0
+  ~nativeWatermarkFontName:
+  ~nativeTiledWatermarkText:
+  ~nativePdfFormats: true
+  ~merge: false
+  ~flatten: false
+  ~splitMode: intervals
+  ~splitSpan: 1
+  ~splitUnify: false
+  ~pdfa: PDF/A-1b
+  ~pdfua: true
+  ~metadata: {"Author":"Bruno","Title":"Test"}
+  ~userPassword:
+  ~ownerPassword:
+  ~embeds: @file(../test/integration/testdata/embed_1.xml)
+  ~embeds: @file(../test/integration/testdata/embed_2.xml)
+  ~embedsMetadata: {"embed_1.xml":{"mimeType":"text/xml","relationship":"Data"}, "embed_2.xml":{"mimeType":"text/xml","relationship":"Data"}}
+  ~watermarkSource: text
+  ~watermarkExpression: CONFIDENTIAL
+  ~watermarkPages:
+  ~watermarkOptions: {"scale":"0.5 abs","rot":"45","fillcolor":"#FF0000"}
+  ~stampSource: text
+  ~stampExpression: DRAFT
+  ~stampPages:
+  ~stampOptions: {"scale":"0.5 abs","rot":"45"}
+  ~rotateAngle: 90
+  ~rotatePages:
+}
+
+headers {
+  ~Gotenberg-Output-Filename: my-file
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Bookmarks/Read Bookmarks.bru

@@ -0,0 +1,24 @@
+meta {
+  name: Read Bookmarks
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/bookmarks/read
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+}
+
+headers {
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Bookmarks/Write Bookmarks.bru

@@ -0,0 +1,26 @@
+meta {
+  name: Write Bookmarks
+  type: http
+  seq: 2
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/bookmarks/write
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  bookmarks: [{"title":"Chapter 1","page":1,"children":[{"title":"Section 1.1","page":1}]}]
+}
+
+headers {
+  ~Gotenberg-Output-Filename: with-bookmarks
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Convert/Convert PDF.bru

@@ -0,0 +1,27 @@
+meta {
+  name: Convert PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/convert
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  pdfa: PDF/A-1b
+  ~pdfua: true
+}
+
+headers {
+  ~Gotenberg-Output-Filename: converted
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Embed/Embed Files.bru

@@ -0,0 +1,29 @@
+meta {
+  name: Embed Files
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/embed
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../test/integration/testdata/page_1.pdf)
+  embeds: @file(../test/integration/testdata/embed_1.xml)
+  embeds: @file(../test/integration/testdata/embed_2.xml)
+  embedsMetadata: {"embed_1.xml":{"mimeType":"text/xml","relationship":"Data"}, "embed_2.xml":{"mimeType":"text/xml","relationship":"Data"}}
+  ~downloadFrom: [{"url":"https://example.com/attachment.xml","embedded":true}]
+}
+
+headers {
+  ~Gotenberg-Output-Filename: with-embeds
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Encrypt/Encrypt PDF.bru

@@ -0,0 +1,27 @@
+meta {
+  name: Encrypt PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/encrypt
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  userPassword: secret123
+  ~ownerPassword: owner456
+}
+
+headers {
+  ~Gotenberg-Output-Filename: encrypted
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Flatten/Flatten PDF.bru

@@ -0,0 +1,25 @@
+meta {
+  name: Flatten PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/flatten
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+}
+
+headers {
+  ~Gotenberg-Output-Filename: flattened
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Merge/Merge PDFs.bru

@@ -0,0 +1,44 @@
+meta {
+  name: Merge PDFs
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/merge
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  files: @file(../../test/integration/testdata/page_2.pdf)
+  ~flatten: false
+  ~autoIndexBookmarks: false
+  ~pdfa: PDF/A-1b
+  ~pdfua: true
+  ~metadata: {"Author":"Bruno","Title":"Test"}
+  ~bookmarks: [{"title":"Page 1","page":1},{"title":"Page 2","page":2}]
+  ~userPassword:
+  ~ownerPassword:
+  ~watermarkSource: text
+  ~watermarkExpression: CONFIDENTIAL
+  ~watermarkPages:
+  ~watermarkOptions: {"scale":"0.5 abs","rot":"45","fillcolor":"#FF0000"}
+  ~stampSource: text
+  ~stampExpression: DRAFT
+  ~stampPages:
+  ~stampOptions: {"scale":"0.5 abs","rot":"45"}
+  ~rotateAngle: 90
+  ~rotatePages:
+}
+
+headers {
+  ~Gotenberg-Output-Filename: merged
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Metadata/Read Metadata.bru

@@ -0,0 +1,24 @@
+meta {
+  name: Read Metadata
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/metadata/read
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+}
+
+headers {
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Metadata/Write Metadata.bru

@@ -0,0 +1,26 @@
+meta {
+  name: Write Metadata
+  type: http
+  seq: 2
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/metadata/write
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  metadata: {"Author":"Bruno","Copyright":"Bruno","Creator":"Gotenberg","Keywords":["test"],"Marked":true,"Producer":"Gotenberg","Subject":"Test","Title":"Test Document","Trapped":"Unknown"}
+}
+
+headers {
+  ~Gotenberg-Output-Filename: with-metadata
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Rotate/Rotate PDF.bru

@@ -0,0 +1,27 @@
+meta {
+  name: Rotate PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/rotate
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  rotateAngle: 90
+  ~rotatePages: 1-2
+}
+
+headers {
+  ~Gotenberg-Output-Filename: rotated
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Split/Split PDF.bru

@@ -0,0 +1,44 @@
+meta {
+  name: Split PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/split
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/pages_3.pdf)
+  splitMode: intervals
+  splitSpan: 1
+  ~splitUnify: false
+  ~flatten: false
+  ~pdfa: PDF/A-1b
+  ~pdfua: true
+  ~metadata: {"Author":"Bruno","Title":"Test"}
+  ~userPassword:
+  ~ownerPassword:
+  ~watermarkSource: text
+  ~watermarkExpression: CONFIDENTIAL
+  ~watermarkPages:
+  ~watermarkOptions: {"scale":"0.5 abs","rot":"45","fillcolor":"#FF0000"}
+  ~stampSource: text
+  ~stampExpression: DRAFT
+  ~stampPages:
+  ~stampOptions: {"scale":"0.5 abs","rot":"45"}
+  ~rotateAngle: 90
+  ~rotatePages:
+}
+
+headers {
+  ~Gotenberg-Output-Filename: split
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Stamp/Stamp PDF.bru

@@ -0,0 +1,31 @@
+meta {
+  name: Stamp PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/stamp
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  stampSource: text
+  stampExpression: APPROVED
+  ~stampPages: 1-2
+  ~stampOptions: {"font":"Helvetica","fontSize":"48","color":"#00FF00","opacity":"0.5","rotation":"0"}
+  ~stamp: @file(../../test/integration/testdata/watermark.png)
+  ~downloadFrom: [{"url":"https://example.com/stamp.png","field":"stamp"}]
+}
+
+headers {
+  ~Gotenberg-Output-Filename: stamped
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/PDF Engines/Watermark/Watermark PDF.bru

@@ -0,0 +1,31 @@
+meta {
+  name: Watermark PDF
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/forms/pdfengines/watermark
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/page_1.pdf)
+  watermarkSource: text
+  watermarkExpression: CONFIDENTIAL
+  ~watermarkPages: 1-2
+  ~watermarkOptions: {"font":"Helvetica","fontSize":"48","color":"#FF0000","opacity":"0.3","rotation":"45"}
+  ~watermark: @file(../../test/integration/testdata/watermark.png)
+  ~downloadFrom: [{"url":"https://example.com/watermark.png","field":"watermark"}]
+}
+
+headers {
+  ~Gotenberg-Output-Filename: watermarked
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Events-Url: http://localhost:8080/webhook/events
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}

.bruno/README.md

@@ -0,0 +1,65 @@
+# Bruno API Collection
+
+[Bruno](https://www.usebruno.com/) collection mirroring every Gotenberg route. Update the collection when adding or modifying a route.
+
+## Structure
+
+```
+.bruno/
+├── bruno.json                      # Collection config
+├── collection.bru                  # Collection-level defaults (Gotenberg-Trace header)
+├── environments/
+│   ├── Local.bru                   # baseUrl: http://localhost:3000
+│   └── Demo.bru                    # baseUrl: https://demo.gotenberg.dev
+├── Health & Info/                   # GET routes
+├── Chromium/Convert/                # POST routes grouped by module
+├── Chromium/Screenshot/
+├── LibreOffice/
+└── PDF Engines/<Feature>/           # One folder per feature (Merge, Split, Rotate, ...)
+```
+
+## `.bru` file format
+
+```bru
+meta {
+  name: <Human-readable name>
+  type: http
+  seq: <order within folder>
+}
+
+post {
+  url: {{baseUrl}}/forms/<path>
+  body: multipartForm
+  auth: none
+}
+
+body:multipart-form {
+  files: @file(../../test/integration/testdata/<file>)
+  <mandatoryField>: <value>
+  ~<optionalField>: <value>
+}
+
+headers {
+  ~Gotenberg-Output-Filename: <name>
+  ~Gotenberg-Webhook-Url: http://localhost:8080/webhook
+  ~Gotenberg-Webhook-Error-Url: http://localhost:8080/webhook/error
+  ~Gotenberg-Webhook-Method: POST
+  ~Gotenberg-Webhook-Error-Method: POST
+  ~Gotenberg-Webhook-Extra-Http-Headers: {"X-Custom":"value"}
+}
+```
+
+## Conventions
+
+- Mandatory fields have no prefix. Optional fields use `~` (disabled by default in Bruno).
+- File references use relative paths to `test/integration/testdata/`.
+- Webhook and output filename headers appear on every POST route as optional (`~`).
+- One `.bru` file per request. For routes with read/write variants (e.g., bookmarks, metadata), create separate files in the same folder.
+
+## Checklist
+
+1. Create or update the `.bru` file in the matching folder under `.bruno/`.
+2. Include all form fields from the route handler. Check `FormData*` calls in the route function.
+3. For file upload fields (`files`, `watermark`, `stamp`, `embeds`), use `@file(...)` with a suitable test file.
+4. Verify the URL path matches the route's `Path` field exactly.
+5. For new module folders, keep the naming consistent (e.g., `PDF Engines/Rotate/`).

.bruno/bruno.json

@@ -0,0 +1,6 @@
+{
+  "version": "1",
+  "name": "Gotenberg",
+  "type": "collection",
+  "ignore": ["node_modules", ".git"]
+}

.bruno/collection.bru

@@ -0,0 +1,3 @@
+headers {
+  Gotenberg-Trace: {{traceId}}
+}

.bruno/environments/Demo.bru

@@ -0,0 +1,4 @@
+vars {
+  baseUrl: https://demo.gotenberg.dev
+  traceId: bruno-demo
+}

.bruno/environments/Local.bru

@@ -0,0 +1,4 @@
+vars {
+  baseUrl: http://localhost:3000
+  traceId: bruno-local
+}

.env

@@ -2,6 +2,5 @@ GOTENBERG_VERSION=snapshot
 DOCKER_REGISTRY=gotenberg
 DOCKER_REPOSITORY=gotenberg
 DOCKERFILE=build/Dockerfile
-DOCKERFILE_CLOUDRUN=build/Dockerfile.cloudrun
-DOCKERFILE_AWS_LAMBDA=build/Dockerfile.aws-lambda
 DOCKER_BUILD_CONTEXT='.'
+TARGET=gotenberg

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

@@ -29,14 +29,32 @@ inputs:
 
 outputs:
   tags:
-    description: Comma separated list of tag
+    description: Comma separated list of full variant tags
     value: ${{ steps.build.outputs.tags }}
+  tags_chromium:
+    description: Comma separated list of Chromium variant tags
+    value: ${{ steps.build.outputs.tags_chromium }}
+  tags_libreoffice:
+    description: Comma separated list of LibreOffice variant tags
+    value: ${{ steps.build.outputs.tags_libreoffice }}
   tags_cloud_run:
-    description: Comma separated list of Cloud Run tags (linux/amd64 only)
+    description: Comma separated list of Cloud Run full variant tags (linux/amd64 only)
     value: ${{ steps.build.outputs.tags_cloud_run }}
+  tags_cloud_run_chromium:
+    description: Comma separated list of Cloud Run Chromium variant tags (linux/amd64 only)
+    value: ${{ steps.build.outputs.tags_cloud_run_chromium }}
+  tags_cloud_run_libreoffice:
+    description: Comma separated list of Cloud Run LibreOffice variant tags (linux/amd64 only)
+    value: ${{ steps.build.outputs.tags_cloud_run_libreoffice }}
   tags_aws_lambda:
-    description: Comma separated list of AWS Lambda tags (linux/amd64 and linux/arm64 only)
+    description: Comma separated list of AWS Lambda full variant tags (linux/amd64 and linux/arm64 only)
     value: ${{ steps.build.outputs.tags_aws_lambda }}
+  tags_aws_lambda_chromium:
+    description: Comma separated list of AWS Lambda Chromium variant tags (linux/amd64 and linux/arm64 only)
+    value: ${{ steps.build.outputs.tags_aws_lambda_chromium }}
+  tags_aws_lambda_libreoffice:
+    description: Comma separated list of AWS Lambda LibreOffice variant tags (linux/amd64 and linux/arm64 only)
+    value: ${{ steps.build.outputs.tags_aws_lambda_libreoffice }}
 
 runs:
   using: composite
@@ -48,7 +66,7 @@ runs:
       uses: docker/setup-buildx-action@v3
 
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Log in to Docker Hub
       if: inputs.docker_hub_username != ''
@@ -60,34 +78,53 @@ runs:
     - name: Build ${{ inputs.platform }}
       id: build
       shell: bash
+      env:
+        INPUT_VERSION: ${{ inputs.version }}
+        INPUT_PLATFORM: ${{ inputs.platform }}
+        INPUT_ALTERNATE_REPOSITORY: ${{ inputs.alternate_repository }}
+        INPUT_DRY_RUN: ${{ inputs.dry_run }}
       run: |
         .github/actions/build-test-push/build.sh \
-          --version "${{ inputs.version }}" \
-          --platform "${{ inputs.platform }}" \
-          --alternate-repository "${{ inputs.alternate_repository }}" \
-          --dry-run "${{ inputs.dry_run }}"
+          --version "$INPUT_VERSION" \
+          --platform "$INPUT_PLATFORM" \
+          --alternate-repository "$INPUT_ALTERNATE_REPOSITORY" \
+          --dry-run "$INPUT_DRY_RUN"
 
     - name: Run integration tests
       if: inputs.skip_integrations_tests != 'true'
       shell: bash
+      env:
+        INPUT_VERSION: ${{ inputs.version }}
+        INPUT_PLATFORM: ${{ inputs.platform }}
+        INPUT_ALTERNATE_REPOSITORY: ${{ inputs.alternate_repository }}
+        INPUT_DRY_RUN: ${{ inputs.dry_run }}
       run: |
         .github/actions/build-test-push/test.sh \
-          --version "${{ inputs.version }}" \
-          --platform "${{ inputs.platform }}" \
-          --alternate-repository "${{ inputs.alternate_repository }}" \
-          --dry-run "${{ inputs.dry_run }}"
+          --version "$INPUT_VERSION" \
+          --platform "$INPUT_PLATFORM" \
+          --alternate-repository "$INPUT_ALTERNATE_REPOSITORY" \
+          --dry-run "$INPUT_DRY_RUN"
 
     - name: Push
       if: inputs.docker_hub_username != ''
       shell: bash
+      env:
+        INPUT_TAGS: ${{ steps.build.outputs.tags }},${{ steps.build.outputs.tags_chromium }},${{ steps.build.outputs.tags_libreoffice }},${{ steps.build.outputs.tags_cloud_run }},${{ steps.build.outputs.tags_cloud_run_chromium }},${{ steps.build.outputs.tags_cloud_run_libreoffice }},${{ steps.build.outputs.tags_aws_lambda }},${{ steps.build.outputs.tags_aws_lambda_chromium }},${{ steps.build.outputs.tags_aws_lambda_libreoffice }}
+        INPUT_DRY_RUN: ${{ inputs.dry_run }}
       run: |
         .github/actions/build-test-push/push.sh \
-          --tags "${{ steps.build.outputs.tags }},${{ steps.build.outputs.tags_cloud_run }},${{ steps.build.outputs.tags_aws_lambda }}" \
-          --dry-run "${{ inputs.dry_run }}"
+          --tags "$INPUT_TAGS" \
+          --dry-run "$INPUT_DRY_RUN"
 
     - name: Outputs
       shell: bash
       run: |
         echo "tags=${{ steps.build.outputs.tags }}"
+        echo "tags_chromium=${{ steps.build.outputs.tags_chromium }}"
+        echo "tags_libreoffice=${{ steps.build.outputs.tags_libreoffice }}"
         echo "tags_cloud_run=${{ steps.build.outputs.tags_cloud_run }}"
+        echo "tags_cloud_run_chromium=${{ steps.build.outputs.tags_cloud_run_chromium }}"
+        echo "tags_cloud_run_libreoffice=${{ steps.build.outputs.tags_cloud_run_libreoffice }}"
         echo "tags_aws_lambda=${{ steps.build.outputs.tags_aws_lambda }}"
+        echo "tags_aws_lambda_chromium=${{ steps.build.outputs.tags_aws_lambda_chromium }}"
+        echo "tags_aws_lambda_libreoffice=${{ steps.build.outputs.tags_aws_lambda_libreoffice }}"

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

@@ -55,8 +55,14 @@ fi
 
 # Build tags arrays.
 tags=()
+tags_chromium=()
+tags_libreoffice=()
 tags_cloud_run=()
+tags_cloud_run_chromium=()
+tags_cloud_run_libreoffice=()
 tags_aws_lambda=()
+tags_aws_lambda_chromium=()
+tags_aws_lambda_libreoffice=()
 
 IFS='/' read -ra arch <<< "$platform"
 IFS='.' read -ra semver <<< "$version"
@@ -69,55 +75,95 @@ if [ "${#semver[@]}" -eq 3 ]; then
   minor="${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]}")
+  for suffix in "latest" "$major" "$major.$minor" "$major.$minor.$patch"; do
+    tags+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-${arch[1]}")
+    tags_chromium+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-chromium-${arch[1]}")
+    tags_libreoffice+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-libreoffice-${arch[1]}")
+  done
 
   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.$patch-cloudrun")
+    for suffix in "latest" "$major" "$major.$minor" "$major.$minor.$patch"; do
+      tags_cloud_run+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-cloudrun")
+      tags_cloud_run_chromium+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-chromium-cloudrun")
+      tags_cloud_run_libreoffice+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-libreoffice-cloudrun")
+    done
   fi
 
   if [ "$platform" = "linux/amd64" ] || [ "$platform" = "linux/arm64" ]; then
-    tags_aws_lambda+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:latest-aws-lambda-${arch[1]}")
-    tags_aws_lambda+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major-aws-lambda-${arch[1]}")
-    tags_aws_lambda+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major.$minor-aws-lambda-${arch[1]}")
-    tags_aws_lambda+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$major.$minor.$patch-aws-lambda-${arch[1]}")
+    for suffix in "latest" "$major" "$major.$minor" "$major.$minor.$patch"; do
+      tags_aws_lambda+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-aws-lambda-${arch[1]}")
+      tags_aws_lambda_chromium+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-chromium-aws-lambda-${arch[1]}")
+      tags_aws_lambda_libreoffice+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$suffix-libreoffice-aws-lambda-${arch[1]}")
+    done
   fi
 else
   echo
   echo "Non-semver version detected, fallback to $version"
 
   tags+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-${arch[1]}")
+  tags_chromium+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-chromium-${arch[1]}")
+  tags_libreoffice+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-libreoffice-${arch[1]}")
+
   if [ "$platform" = "linux/amd64" ]; then
     tags_cloud_run+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-cloudrun")
+    tags_cloud_run_chromium+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-chromium-cloudrun")
+    tags_cloud_run_libreoffice+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-libreoffice-cloudrun")
   fi
 
   if [ "$platform" = "linux/amd64" ] || [ "$platform" = "linux/arm64" ]; then
     tags_aws_lambda+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-aws-lambda-${arch[1]}")
+    tags_aws_lambda_chromium+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-chromium-aws-lambda-${arch[1]}")
+    tags_aws_lambda_libreoffice+=("$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version-libreoffice-aws-lambda-${arch[1]}")
   fi
 fi
 
 tags_flags=()
+tags_chromium_flags=()
+tags_libreoffice_flags=()
 tags_cloud_run_flags=()
+tags_cloud_run_chromium_flags=()
+tags_cloud_run_libreoffice_flags=()
 tags_aws_lambda_flags=()
+tags_aws_lambda_chromium_flags=()
+tags_aws_lambda_libreoffice_flags=()
 
 echo "Will use the following tags:"
 for tag in "${tags[@]}"; do
   tags_flags+=("-t" "$tag")
   echo "- $tag"
 done
+for tag in "${tags_chromium[@]}"; do
+  tags_chromium_flags+=("-t" "$tag")
+  echo "- $tag"
+done
+for tag in "${tags_libreoffice[@]}"; do
+  tags_libreoffice_flags+=("-t" "$tag")
+  echo "- $tag"
+done
 for tag in "${tags_cloud_run[@]}"; do
   tags_cloud_run_flags+=("-t" "$tag")
   echo "- $tag"
 done
+for tag in "${tags_cloud_run_chromium[@]}"; do
+  tags_cloud_run_chromium_flags+=("-t" "$tag")
+  echo "- $tag"
+done
+for tag in "${tags_cloud_run_libreoffice[@]}"; do
+  tags_cloud_run_libreoffice_flags+=("-t" "$tag")
+  echo "- $tag"
+done
 for tag in "${tags_aws_lambda[@]}"; do
   tags_aws_lambda_flags+=("-t" "$tag")
   echo "- $tag"
 done
+for tag in "${tags_aws_lambda_chromium[@]}"; do
+  tags_aws_lambda_chromium_flags+=("-t" "$tag")
+  echo "- $tag"
+done
+for tag in "${tags_aws_lambda_libreoffice[@]}"; do
+  tags_aws_lambda_libreoffice_flags+=("-t" "$tag")
+  echo "- $tag"
+done
 echo
 
 # Build images.
@@ -145,7 +191,9 @@ join() {
 
 no_arch_tag="$DOCKER_REGISTRY/$DOCKER_REPOSITORY:$version"
 
+# Full variant.
 cmd="docker buildx build \
+    --target gotenberg \
     --build-arg GOTENBERG_VERSION=$version \
     --platform $platform \
     --load \
@@ -155,30 +203,102 @@ cmd="docker buildx build \
 "
 run_cmd "$cmd"
 
+# Chromium only variant.
+cmd="docker buildx build \
+    --target gotenberg-chromium \
+    --build-arg GOTENBERG_VERSION=$version \
+    --platform $platform \
+    --load \
+    ${tags_chromium_flags[*]} \
+    -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
+"
+run_cmd "$cmd"
+
+# LibreOffice only variant.
+cmd="docker buildx build \
+    --target gotenberg-libreoffice \
+    --build-arg GOTENBERG_VERSION=$version \
+    --platform $platform \
+    --load \
+    ${tags_libreoffice_flags[*]} \
+    -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
+"
+run_cmd "$cmd"
+
+# Cloud Run variants (amd64 only).
 if [ "$platform" = "linux/amd64" ]; then
-  cmd="docker build \
-      --build-arg DOCKER_REGISTRY=$DOCKER_REGISTRY \
-      --build-arg DOCKER_REPOSITORY=$DOCKER_REPOSITORY \
+  cmd="docker buildx build \
+      --target gotenberg-cloudrun \
       --build-arg GOTENBERG_VERSION=$version \
+      --platform $platform \
+      --load \
       ${tags_cloud_run_flags[*]} \
-      -f $DOCKERFILE_CLOUDRUN $DOCKER_BUILD_CONTEXT
+      -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
+  "
+  run_cmd "$cmd"
+
+  cmd="docker buildx build \
+      --target gotenberg-cloudrun-chromium \
+      --build-arg GOTENBERG_VERSION=$version \
+      --platform $platform \
+      --load \
+      ${tags_cloud_run_chromium_flags[*]} \
+      -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
+  "
+  run_cmd "$cmd"
+
+  cmd="docker buildx build \
+      --target gotenberg-cloudrun-libreoffice \
+      --build-arg GOTENBERG_VERSION=$version \
+      --platform $platform \
+      --load \
+      ${tags_cloud_run_libreoffice_flags[*]} \
+      -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
   "
   run_cmd "$cmd"
 fi
 
+# AWS Lambda variants (amd64 + arm64 only).
 if [ "$platform" = "linux/amd64" ] || [ "$platform" = "linux/arm64" ]; then
-  cmd="docker build \
-        --build-arg DOCKER_REGISTRY=$DOCKER_REGISTRY \
-        --build-arg DOCKER_REPOSITORY=$DOCKER_REPOSITORY \
-        --build-arg GOTENBERG_VERSION=$version \
-        ${tags_aws_lambda_flags[*]} \
-        -f $DOCKERFILE_AWS_LAMBDA $DOCKER_BUILD_CONTEXT
+  cmd="docker buildx build \
+      --target gotenberg-aws-lambda \
+      --build-arg GOTENBERG_VERSION=$version \
+      --platform $platform \
+      --load \
+      ${tags_aws_lambda_flags[*]} \
+      -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
+  "
+  run_cmd "$cmd"
+
+  cmd="docker buildx build \
+      --target gotenberg-aws-lambda-chromium \
+      --build-arg GOTENBERG_VERSION=$version \
+      --platform $platform \
+      --load \
+      ${tags_aws_lambda_chromium_flags[*]} \
+      -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
+  "
+  run_cmd "$cmd"
+
+  cmd="docker buildx build \
+      --target gotenberg-aws-lambda-libreoffice \
+      --build-arg GOTENBERG_VERSION=$version \
+      --platform $platform \
+      --load \
+      ${tags_aws_lambda_libreoffice_flags[*]} \
+      -f $DOCKERFILE $DOCKER_BUILD_CONTEXT
   "
   run_cmd "$cmd"
 fi
 
 echo "✅ Done!"
 echo "tags=$(join "," "${tags[@]}")" >> "$GITHUB_OUTPUT"
+echo "tags_chromium=$(join "," "${tags_chromium[@]}")" >> "$GITHUB_OUTPUT"
+echo "tags_libreoffice=$(join "," "${tags_libreoffice[@]}")" >> "$GITHUB_OUTPUT"
 echo "tags_cloud_run=$(join "," "${tags_cloud_run[@]}")" >> "$GITHUB_OUTPUT"
+echo "tags_cloud_run_chromium=$(join "," "${tags_cloud_run_chromium[@]}")" >> "$GITHUB_OUTPUT"
+echo "tags_cloud_run_libreoffice=$(join "," "${tags_cloud_run_libreoffice[@]}")" >> "$GITHUB_OUTPUT"
 echo "tags_aws_lambda=$(join "," "${tags_aws_lambda[@]}")" >> "$GITHUB_OUTPUT"
+echo "tags_aws_lambda_chromium=$(join "," "${tags_aws_lambda_chromium[@]}")" >> "$GITHUB_OUTPUT"
+echo "tags_aws_lambda_libreoffice=$(join "," "${tags_aws_lambda_libreoffice[@]}")" >> "$GITHUB_OUTPUT"
 exit 0

.github/actions/clean/action.yml

@@ -23,9 +23,12 @@ runs:
       env:
         DOCKERHUB_USERNAME: ${{ inputs.docker_hub_username }}
         DOCKERHUB_TOKEN: ${{ inputs.docker_hub_password }}
+        INPUT_TAGS: ${{ inputs.tags }}
+        INPUT_SNAPSHOT_VERSION: ${{ inputs.snapshot_version }}
+        INPUT_DRY_RUN: ${{ inputs.dry_run }}
       shell: bash
       run: |
         .github/actions/clean/clean.sh \
-          --tags "${{ inputs.tags }}" \
-          --snapshot-version "${{ inputs.snapshot_version }}" \
-          --dry-run "${{ inputs.dry_run }}"
+          --tags "$INPUT_TAGS" \
+          --snapshot-version "$INPUT_SNAPSHOT_VERSION" \
+          --dry-run "$INPUT_DRY_RUN"

.github/actions/merge/action.yml

@@ -31,7 +31,7 @@ runs:
       uses: docker/setup-buildx-action@v3
 
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Log in to Docker Hub
       uses: docker/login-action@v3
@@ -41,8 +41,12 @@ runs:
 
     - name: Merge
       shell: bash
+      env:
+        INPUT_TAGS: ${{ inputs.tags }}
+        INPUT_ALTERNATE_REGISTRY: ${{ inputs.alternate_registry }}
+        INPUT_DRY_RUN: ${{ inputs.dry_run }}
       run: |
         .github/actions/merge/merge.sh \
-          --tags "${{ inputs.tags }}" \
-          --alternate-registry "${{ inputs.alternate_registry }}" \
-          --dry-run "${{ inputs.dry_run }}"
+          --tags "$INPUT_TAGS" \
+          --alternate-registry "$INPUT_ALTERNATE_REGISTRY" \
+          --dry-run "$INPUT_DRY_RUN"

.github/workflows/continuous-delivery.yml

@@ -13,8 +13,14 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       tags: ${{ steps.build_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -34,8 +40,14 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       tags: ${{ steps.build_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -55,8 +67,14 @@ jobs:
     runs-on: ubuntu-24.04-ppc64le
     outputs:
       tags: ${{ steps.build_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -76,8 +94,14 @@ jobs:
     runs-on: ubuntu-24.04-arm
     outputs:
       tags: ${{ steps.build_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -97,8 +121,14 @@ jobs:
     runs-on: ubuntu-24.04-arm
     outputs:
       tags: ${{ steps.build_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -132,7 +162,20 @@ jobs:
           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_ppc64le.outputs.tags }},${{ needs.release_arm64.outputs.tags }},${{ needs.release_arm_v7.outputs.tags }}"
-          alternate_registry: thecodingmachine
+
+      - name: Merge Chromium
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.release_amd64.outputs.tags_chromium }},${{ needs.release_386.outputs.tags_chromium }},${{ needs.release_ppc64le.outputs.tags_chromium }},${{ needs.release_arm64.outputs.tags_chromium }},${{ needs.release_arm_v7.outputs.tags_chromium }}"
+
+      - name: Merge LibreOffice
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.release_amd64.outputs.tags_libreoffice }},${{ needs.release_386.outputs.tags_libreoffice }},${{ needs.release_ppc64le.outputs.tags_libreoffice }},${{ needs.release_arm64.outputs.tags_libreoffice }},${{ needs.release_arm_v7.outputs.tags_libreoffice }}"
 
       - name: Merge AWS Lambda
         uses: ./.github/actions/merge
@@ -140,11 +183,24 @@ jobs:
           docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
           docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
           tags: "${{ needs.release_amd64.outputs.tags_aws_lambda }},${{ needs.release_arm64.outputs.tags_aws_lambda }}"
-          alternate_registry: thecodingmachine
+
+      - name: Merge AWS Lambda Chromium
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.release_amd64.outputs.tags_aws_lambda_chromium }},${{ needs.release_arm64.outputs.tags_aws_lambda_chromium }}"
+
+      - name: Merge AWS Lambda LibreOffice
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.release_amd64.outputs.tags_aws_lambda_libreoffice }},${{ needs.release_arm64.outputs.tags_aws_lambda_libreoffice }}"
 
       - 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_ppc64le.outputs.tags }},${{ needs.release_arm64.outputs.tags }},${{ needs.release_arm_v7.outputs.tags }},${{ needs.release_amd64.outputs.tags_aws_lambda }},${{ needs.release_arm64.outputs.tags_aws_lambda }}"
+          tags: "${{ needs.release_amd64.outputs.tags }},${{ needs.release_386.outputs.tags }},${{ needs.release_ppc64le.outputs.tags }},${{ needs.release_arm64.outputs.tags }},${{ needs.release_arm_v7.outputs.tags }},${{ needs.release_amd64.outputs.tags_chromium }},${{ needs.release_386.outputs.tags_chromium }},${{ needs.release_ppc64le.outputs.tags_chromium }},${{ needs.release_arm64.outputs.tags_chromium }},${{ needs.release_arm_v7.outputs.tags_chromium }},${{ needs.release_amd64.outputs.tags_libreoffice }},${{ needs.release_386.outputs.tags_libreoffice }},${{ needs.release_ppc64le.outputs.tags_libreoffice }},${{ needs.release_arm64.outputs.tags_libreoffice }},${{ needs.release_arm_v7.outputs.tags_libreoffice }},${{ needs.release_amd64.outputs.tags_aws_lambda }},${{ needs.release_arm64.outputs.tags_aws_lambda }},${{ needs.release_amd64.outputs.tags_aws_lambda_chromium }},${{ needs.release_arm64.outputs.tags_aws_lambda_chromium }},${{ needs.release_amd64.outputs.tags_aws_lambda_libreoffice }},${{ needs.release_arm64.outputs.tags_aws_lambda_libreoffice }}"

.github/workflows/continuous-integration.yml

@@ -77,8 +77,14 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -101,8 +107,14 @@ jobs:
     runs-on: ubuntu-24.04-ppc64le
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -125,8 +137,14 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -149,8 +167,14 @@ jobs:
     runs-on: ubuntu-24.04-arm
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -173,8 +197,14 @@ jobs:
     runs-on: ubuntu-24.04-arm
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -232,6 +262,20 @@ jobs:
           docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
           tags: "${{ needs.snapshot_amd64.outputs.tags }},${{ needs.snapshot_386.outputs.tags }},${{ needs.snapshot_ppc64le.outputs.tags }},${{ needs.snapshot_arm64.outputs.tags }},${{ needs.snapshot_arm_v7.outputs.tags }}"
 
+      - name: Merge Chromium
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.snapshot_amd64.outputs.tags_chromium }},${{ needs.snapshot_386.outputs.tags_chromium }},${{ needs.snapshot_ppc64le.outputs.tags_chromium }},${{ needs.snapshot_arm64.outputs.tags_chromium }},${{ needs.snapshot_arm_v7.outputs.tags_chromium }}"
+
+      - name: Merge LibreOffice
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.snapshot_amd64.outputs.tags_libreoffice }},${{ needs.snapshot_386.outputs.tags_libreoffice }},${{ needs.snapshot_ppc64le.outputs.tags_libreoffice }},${{ needs.snapshot_arm64.outputs.tags_libreoffice }},${{ needs.snapshot_arm_v7.outputs.tags_libreoffice }}"
+
       - name: Merge AWS Lambda
         uses: ./.github/actions/merge
         with:
@@ -239,12 +283,26 @@ jobs:
           docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
           tags: "${{ needs.snapshot_amd64.outputs.tags_aws_lambda }},${{ needs.snapshot_arm64.outputs.tags_aws_lambda }}"
 
+      - name: Merge AWS Lambda Chromium
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.snapshot_amd64.outputs.tags_aws_lambda_chromium }},${{ needs.snapshot_arm64.outputs.tags_aws_lambda_chromium }}"
+
+      - name: Merge AWS Lambda LibreOffice
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.snapshot_amd64.outputs.tags_aws_lambda_libreoffice }},${{ needs.snapshot_arm64.outputs.tags_aws_lambda_libreoffice }}"
+
       - 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_ppc64le.outputs.tags }},${{ needs.snapshot_arm64.outputs.tags }},${{ needs.snapshot_arm_v7.outputs.tags }},${{ needs.snapshot_amd64.outputs.tags_aws_lambda }},${{ needs.snapshot_arm64.outputs.tags_aws_lambda }}"
+          tags: "${{ needs.snapshot_amd64.outputs.tags }},${{ needs.snapshot_386.outputs.tags }},${{ needs.snapshot_ppc64le.outputs.tags }},${{ needs.snapshot_arm64.outputs.tags }},${{ needs.snapshot_arm_v7.outputs.tags }},${{ needs.snapshot_amd64.outputs.tags_chromium }},${{ needs.snapshot_386.outputs.tags_chromium }},${{ needs.snapshot_ppc64le.outputs.tags_chromium }},${{ needs.snapshot_arm64.outputs.tags_chromium }},${{ needs.snapshot_arm_v7.outputs.tags_chromium }},${{ needs.snapshot_amd64.outputs.tags_libreoffice }},${{ needs.snapshot_386.outputs.tags_libreoffice }},${{ needs.snapshot_ppc64le.outputs.tags_libreoffice }},${{ needs.snapshot_arm64.outputs.tags_libreoffice }},${{ needs.snapshot_arm_v7.outputs.tags_libreoffice }},${{ needs.snapshot_amd64.outputs.tags_aws_lambda }},${{ needs.snapshot_arm64.outputs.tags_aws_lambda }},${{ needs.snapshot_amd64.outputs.tags_aws_lambda_chromium }},${{ needs.snapshot_arm64.outputs.tags_aws_lambda_chromium }},${{ needs.snapshot_amd64.outputs.tags_aws_lambda_libreoffice }},${{ needs.snapshot_arm64.outputs.tags_aws_lambda_libreoffice }}"
 
   edge_amd64:
     if: github.event_name == 'push' && github.ref == 'refs/heads/main'
@@ -254,8 +312,14 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -277,8 +341,14 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -300,8 +370,14 @@ jobs:
     runs-on: ubuntu-24.04-ppc64le
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -323,8 +399,14 @@ jobs:
     runs-on: ubuntu-24.04-arm
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -346,8 +428,14 @@ jobs:
     runs-on: ubuntu-24.04-arm
     outputs:
       tags: ${{ steps.build_test_push.outputs.tags }}
+      tags_chromium: ${{ steps.build_test_push.outputs.tags_chromium }}
+      tags_libreoffice: ${{ steps.build_test_push.outputs.tags_libreoffice }}
       tags_cloud_run: ${{ steps.build_test_push.outputs.tags_cloud_run }}
+      tags_cloud_run_chromium: ${{ steps.build_test_push.outputs.tags_cloud_run_chromium }}
+      tags_cloud_run_libreoffice: ${{ steps.build_test_push.outputs.tags_cloud_run_libreoffice }}
       tags_aws_lambda: ${{ steps.build_test_push.outputs.tags_aws_lambda }}
+      tags_aws_lambda_chromium: ${{ steps.build_test_push.outputs.tags_aws_lambda_chromium }}
+      tags_aws_lambda_libreoffice: ${{ steps.build_test_push.outputs.tags_aws_lambda_libreoffice }}
     steps:
       - name: Checkout source code
         uses: actions/checkout@v6
@@ -380,7 +468,20 @@ jobs:
           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_ppc64le.outputs.tags }},${{ needs.edge_arm64.outputs.tags }},${{ needs.edge_arm_v7.outputs.tags }}"
-          alternate_registry: thecodingmachine
+
+      - name: Merge Chromium
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.edge_amd64.outputs.tags_chromium }},${{ needs.edge_386.outputs.tags_chromium }},${{ needs.edge_ppc64le.outputs.tags_chromium }},${{ needs.edge_arm64.outputs.tags_chromium }},${{ needs.edge_arm_v7.outputs.tags_chromium }}"
+
+      - name: Merge LibreOffice
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.edge_amd64.outputs.tags_libreoffice }},${{ needs.edge_386.outputs.tags_libreoffice }},${{ needs.edge_ppc64le.outputs.tags_libreoffice }},${{ needs.edge_arm64.outputs.tags_libreoffice }},${{ needs.edge_arm_v7.outputs.tags_libreoffice }}"
 
       - name: Merge AWS Lambda
         uses: ./.github/actions/merge
@@ -388,11 +489,24 @@ jobs:
           docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
           docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
           tags: "${{ needs.edge_amd64.outputs.tags_aws_lambda }},${{ needs.edge_arm64.outputs.tags_aws_lambda }}"
-          alternate_registry: thecodingmachine
+
+      - name: Merge AWS Lambda Chromium
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.edge_amd64.outputs.tags_aws_lambda_chromium }},${{ needs.edge_arm64.outputs.tags_aws_lambda_chromium }}"
+
+      - name: Merge AWS Lambda LibreOffice
+        uses: ./.github/actions/merge
+        with:
+          docker_hub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+          docker_hub_password: ${{ secrets.DOCKERHUB_TOKEN }}
+          tags: "${{ needs.edge_amd64.outputs.tags_aws_lambda_libreoffice }},${{ needs.edge_arm64.outputs.tags_aws_lambda_libreoffice }}"
 
       - 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_ppc64le.outputs.tags }},${{ needs.edge_arm64.outputs.tags }},${{ needs.edge_arm_v7.outputs.tags }},${{ needs.edge_amd64.outputs.tags_aws_lambda }},${{ needs.edge_arm64.outputs.tags_aws_lambda }}"
+          tags: "${{ needs.edge_amd64.outputs.tags }},${{ needs.edge_386.outputs.tags }},${{ needs.edge_ppc64le.outputs.tags }},${{ needs.edge_arm64.outputs.tags }},${{ needs.edge_arm_v7.outputs.tags }},${{ needs.edge_amd64.outputs.tags_chromium }},${{ needs.edge_386.outputs.tags_chromium }},${{ needs.edge_ppc64le.outputs.tags_chromium }},${{ needs.edge_arm64.outputs.tags_chromium }},${{ needs.edge_arm_v7.outputs.tags_chromium }},${{ needs.edge_amd64.outputs.tags_libreoffice }},${{ needs.edge_386.outputs.tags_libreoffice }},${{ needs.edge_ppc64le.outputs.tags_libreoffice }},${{ needs.edge_arm64.outputs.tags_libreoffice }},${{ needs.edge_arm_v7.outputs.tags_libreoffice }},${{ needs.edge_amd64.outputs.tags_aws_lambda }},${{ needs.edge_arm64.outputs.tags_aws_lambda }},${{ needs.edge_amd64.outputs.tags_aws_lambda_chromium }},${{ needs.edge_arm64.outputs.tags_aws_lambda_chromium }},${{ needs.edge_amd64.outputs.tags_aws_lambda_libreoffice }},${{ needs.edge_arm64.outputs.tags_aws_lambda_libreoffice }}"

.golangci.yml

@@ -24,13 +24,14 @@ linters:
     - ineffassign
     - misspell
     - prealloc
-    - promlinter
     - staticcheck
     - testableexamples
     - tparallel
     - unconvert
     - unused
+    - sloglint
     - usetesting
+    - gocritic
     - wastedassign
     - whitespace
   exclusions:
@@ -40,10 +41,6 @@ linters:
       - common-false-positives
       - legacy
       - std-error-handling
-    paths:
-      - third_party$
-      - builtin$
-      - examples$
 formatters:
   enable:
     - gci
@@ -59,7 +56,3 @@ formatters:
       custom-order: true
   exclusions:
     generated: lax
-    paths:
-      - third_party$
-      - builtin$
-      - examples$

AGENTS.md

@@ -1,66 +0,0 @@
-# Operational Guidelines for Gotenberg
-
-As an AI agent working on the Gotenberg repository, you are expected to act with the diligence and architectural foresight of a Senior Go Engineer. Gotenberg is a widely used production dependency; stability and backward compatibility are paramount.
-
-## 1. Core Philosophy & Stability
-
-- **Backward Compatibility is Law:** This project creates a public API. Never modify existing flags, configuration environment variables, or API form fields unless explicitly instructed to perform a breaking change. If a change is breaking, it must be flagged immediately in the plan.
-- **Defensive Programming:** Assume input data is malformed. Handle errors explicitly. Do not panic.
-- **Atomic Commits:** Isolate refactoring from feature additions. A Pull Request should do one thing well.
-
-## 2. Development Workflow & Tooling
-
-You must rely strictly on the project's Makefile for build and verification tasks. Do not run `go` commands directly unless debugging a specific package requires it.
-
-- **Formatting:** Run `make fmt` to format Go code before committing.
-- **Linting:**
-  - Run `make lint` to ensure Go code strictly adheres to the `.golangci.yml` configuration.
-  - Run `make lint-prettier` to verify formatting for non-Go files (Markdown, YAML, etc.).
-  - Zero linting errors are permitted.
-- **Building:** Run `make build` to verify compilation and Docker image construction.
-
-## 3. Architecture & Code Structure
-
-- **Idiomatic Go:** Follow "Effective Go" principles.
-- **Directory Separation:**
-  - `cmd/`: Application entry points only. Contains wiring and startup logic. **No business logic is permitted here.**
-  - `pkg/`: Core library code and modules. All business logic resides here.
-- **Module System:** Gotenberg is modular (e.g., Chromium, LibreOffice). When adding features, determine if they belong to an existing module or require a new strict isolation.
-
-## 4. Testing Standards
-
-Gotenberg utilizes a split testing strategy. **Integration tests are the primary and preferred method for verifying features.**
-
-- **Integration Tests (`make test-integration`):**
-  - **First Priority:** Always start here when adding features or routes.
-  - Gotenberg uses **Gherkin (Godog)** for end-to-end verification.
-  - You **must** create or update the corresponding `.feature` file in `test/integration`.
-  - These tests run within the Docker context; ensure environment consistency.
-- **Unit Tests (`make test-unit`):**
-  - Use table-driven tests for pure logic within `pkg/`.
-  - Mock external dependencies (filesystem, network) where appropriate.
-
-## 5. Documentation Requirements
-
-- **No README Updates:** Do not modify the root `README.md` unless explicitly asked.
-- **GoDoc is Mandatory:**
-  - **New Packages:** If creating a new package, you must include a `doc.go` file containing the package-level documentation.
-  - **Exported Symbols:** Every exported function, type, constant, and variable must have a proper GoDoc comment starting with its name.
-  - **Quality:** Comments must be complete sentences explaining _what_ the symbol does and _how_ to use it.
-  - **Example:**
-    ```go
-    // Convert transforms the input document to PDF using the Chromium engine.
-    // It returns an error if the connection to the browser instance fails.
-    func Convert(...) error
-    ```
-
-## 6. Definition of Done
-
-A task is considered complete only when:
-
-1.  The code compiles via `make build`.
-2.  The code is formatted via `make fmt`.
-3.  All linters pass via `make lint` and `make lint-prettier`.
-4.  Integration scenarios pass via `make test-integration`.
-5.  Unit tests pass via `make test-unit`.
-6.  All exported symbols and new packages have compliant GoDoc.

AGENTS.md

@@ -0,0 +1 @@
+CONTRIBUTING.md

CLAUDE.md

@@ -0,0 +1 @@
+CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,190 @@
+# Contributing to Gotenberg
+
+Gotenberg is a Docker-based API for converting documents to PDF. Two rules override everything else: **backward compatibility** (never rename or remove CLI flags, environment variables, API form fields, or HTTP endpoints without discussion) and **defensive programming** (assume input is malformed, handle errors explicitly, never panic).
+
+- Module: `github.com/gotenberg/gotenberg/v8`
+- Go: see version in `go.mod`
+- Docker
+- Node.js (see `.node-version`), for Prettier linting
+- [golangci-lint](https://golangci-lint.run/) v2+
+
+## Quick start
+
+```bash
+make build            # Build the Docker image
+make run              # Run a local Gotenberg container
+make fmt              # Format Go code
+make prettify         # Format non-Go files (Markdown, YAML, etc.)
+make lint             # Lint Go code (zero errors permitted)
+make lint-prettier    # Lint non-Go files
+make test-unit        # Run unit tests
+make build            # Required before integration tests
+make test-integration # Run all integration tests
+make telemetry        # Start OpenTelemetry collector and OpenObserve
+make down             # Stop all compose containers
+```
+
+Run only the integration tests relevant to your change:
+
+```bash
+make test-integration TAGS=health
+make test-integration TAGS=chromium-convert-html
+make test-integration TAGS="merge,split"
+```
+
+All build and verification tasks go through the Makefile. Do not run `go` commands directly unless debugging a specific package.
+
+| Command          | Purpose                                       | When to use                                                              |
+| ---------------- | --------------------------------------------- | ------------------------------------------------------------------------ |
+| `make run`       | Run Gotenberg container via `docker compose`  | Manual testing. Flags configured via Makefile variables and compose.yaml |
+| `make telemetry` | Start OpenTelemetry collector and OpenObserve | When testing telemetry locally                                           |
+| `make down`      | Stop all compose containers                   | After manual testing                                                     |
+| `make godoc`     | Serve GoDoc at `localhost:6060`               | To verify documentation                                                  |
+
+## Project layout
+
+```
+cmd/gotenberg/       -> Entry point only (wiring/startup). No business logic.
+pkg/gotenberg/       -> Core module system, interfaces, utilities, mocks.
+pkg/modules/         -> Feature modules (api, chromium, libreoffice, pdfengines, etc.).
+pkg/standard/        -> Wires all standard modules together via imports.
+test/integration/    -> Gherkin feature files + Go test infrastructure.
+build/               -> Dockerfile, fonts, Chromium config.
+.bruno/              -> Bruno API collection (mirrors every route).
+```
+
+Key interfaces live in `pkg/gotenberg/`: `Module`, `Provisioner`, `Validator`, `Debuggable`. Every module implements `Descriptor()` and self-registers.
+
+## Coding rules
+
+### Module system
+
+Gotenberg uses a self-registering module architecture inspired by CaddyServer. Each module lives in `pkg/modules/<name>/`, implements at minimum `gotenberg.Module` (`Descriptor()`), and self-registers via `init()`. Wiring happens through `pkg/standard/`.
+
+Determine if a feature belongs in an existing module before creating a new one. Only create a new module for a genuinely separate concern.
+
+### Error handling
+
+- Wrap every error with context: `fmt.Errorf("description: %w", err)`.
+- Never swallow errors silently.
+- Match errors with `errors.Is`, never `strings.Contains`.
+- No panics in production code paths.
+- Input is validated defensively.
+
+### Import ordering
+
+Enforced by `gci`: standard library, then third-party, then `github.com/gotenberg/gotenberg/v8`. Three groups separated by blank lines.
+
+### Logging
+
+Use `gotenberg.Logger(mod)` to get the module's slog logger during `Provision()`. All log calls must be context-aware: `logger.DebugContext(ctx, msg)`, `logger.InfoContext(ctx, msg)`, `logger.ErrorContext(ctx, msg)`. This propagates trace/span IDs into structured logs when OpenTelemetry is active.
+
+### Telemetry
+
+External tool calls (Chromium, LibreOffice, PDF engines, webhooks, downloads) must create OTEL spans with `trace.SpanKindClient` and `semconv.ServerAddress("toolname")`. Use `gotenberg.Tracer()` and `gotenberg.Meter()` for traces and metrics.
+
+### No business logic in `cmd/`
+
+The `cmd/gotenberg/` package is strictly for wiring and startup.
+
+### Mocks
+
+Comprehensive mock implementations for all major interfaces live in `pkg/gotenberg/mocks.go`. Use these for unit tests rather than creating new ones.
+
+## Documentation rules
+
+### Tone
+
+- Short, declarative sentences. Say what it does, then stop.
+- Lead with the action. "Validates font embedding", not "This function validates font embedding".
+- Active voice. "Gotenberg checks the profile", not "The profile is checked by Gotenberg".
+- No em dashes. Use a period, colon, or comma.
+- No "we" hedging. "Don't...", not "We do not recommend...".
+
+### Godoc
+
+Every exported type and function has a Godoc comment starting with its identifier name:
+
+```go
+// Violation records a single rule violation with context.
+type Violation struct { ... }
+
+// ValidatePDFA audits the document against a PDF/A profile.
+func ValidatePDFA(ctx context.Context, ...) ([]error, error)
+```
+
+Each package should have a `doc.go` with a `// Package foo ...` comment.
+
+Reference identifiers with `[Name]` brackets for pkg.go.dev linking:
+
+```go
+// ValidatePDFA returns violations as []error where each element
+// is a [Violation] value. See [Rule] for the structured fields.
+```
+
+### Code comments
+
+- Explain _why_, not _what_.
+- No numbered step comments (`// 1. Do X`, `// 2. Do Y`).
+- No section dividers with numbers (`// --- 8. Foo ---`). Plain dividers are fine for major boundaries.
+- No noise comments that restate the code (`// Check if err is nil`, `// Return results`).
+- Reference spec clauses where relevant (`// Per ISO 32000-2, Table 116...`).
+- Mark debt with `// TODO: [context]`.
+
+### Formatting non-Go files
+
+Run `make prettify && make lint-prettier` for YAML, Markdown, and JSON.
+
+## Testing
+
+Integration tests use Gherkin (BDD) via Godog with `testcontainers-go` for Docker orchestration. Feature files live in `test/integration/features/`. Step definitions live in `test/integration/scenario/`. Read `scenario.go` and `containers.go` to understand step definitions before writing new tests.
+
+Unit tests: table-driven tests in `*_test.go` files using mocks from `pkg/gotenberg/mocks.go`.
+
+Run only the relevant integration test tag rather than the full suite (40min timeout).
+
+See:
+
+- [`test/integration/README.md`](test/integration/README.md): Gherkin step reference, available tags, writing new tests.
+- [`.bruno/README.md`](.bruno/README.md): `.bru` file format, conventions, route update checklist.
+- [`pkg/modules/pdfengines/README.md`](pkg/modules/pdfengines/README.md): adding new engine features (Makefile variable and flag).
+
+## Pull requests
+
+Plan non-trivial changes before coding. Open an issue or draft PR describing what needs to change, the proposed solution (files to modify, interface changes, form fields), and which integration test tags are affected.
+
+### Guidelines
+
+- One thing per PR. Keep features, bug fixes, and refactoring separate.
+- Backward compatibility matters. Do not rename or remove existing CLI flags, environment variables, or API form fields without discussion.
+- Integration tests first. When adding a feature or route, start by writing the Gherkin scenario.
+- Bruno collection must be updated if routes were added or modified.
+
+### Checklist
+
+- [ ] No existing CLI flags renamed or removed
+- [ ] No existing environment variables renamed or removed
+- [ ] No existing API form fields renamed or removed
+- [ ] No existing HTTP endpoints changed or removed
+- [ ] No changes to default values that alter existing behavior
+- [ ] Deprecated flags have both old and new names registered, with `fs.MarkDeprecated()`
+- [ ] Errors wrapped with context: `fmt.Errorf("description: %w", err)`
+- [ ] No business logic in `cmd/`
+- [ ] No panics in production code paths
+- [ ] New features belong in the correct module (or justify a new one)
+- [ ] Linting: `make fmt && make lint && make prettify && make lint-prettier` passes with zero warnings
+- [ ] Every exported function, type, constant, and variable has a Godoc comment starting with its name
+- [ ] New packages include a `doc.go` file
+- [ ] Integration tests pass: `make test-integration` (at minimum, the relevant tags)
+- [ ] Unit tests pass: `make test-unit`
+- [ ] Bruno collection updated (if routes were added or modified)
+
+If any backward compatibility item is violated, the change **must** be flagged as a breaking change.
+
+### Commits
+
+[Conventional Commits](https://www.conventionalcommits.org/): `<type>(<scope>): <description>`.
+
+Common types: `feat`, `fix`, `refactor`, `test`, `docs`, `chore`, `ci`, `build`. The scope should match the module or area of the change (e.g., `chromium`, `pdfengines`, `api`).
+
+Stage specific files. Never `git add -A` or `git add .`.

GEMINI.md

@@ -0,0 +1 @@
+CONTRIBUTING.md

Makefile

@@ -5,8 +5,9 @@ help: ## Show the help
 	@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
+build: ## Build the Gotenberg's Docker image (use TARGET=gotenberg-chromium or TARGET=gotenberg-libreoffice for variants)
 	docker build \
+	--target $(TARGET) \
 	-t $(DOCKER_REGISTRY)/$(DOCKER_REPOSITORY):$(GOTENBERG_VERSION) \
 	-f $(DOCKERFILE) $(DOCKER_BUILD_CONTEXT)
 
@@ -26,16 +27,17 @@ API_ENABLE_BASIC_AUTH=false
 GOTENBERG_API_BASIC_AUTH_USERNAME=
 GOTENBERG_API_BASIC_AUTH_PASSWORD=
 API_DOWNLOAD_FROM_ALLOW_LIST=
-API_DOWNLOAD_FROM_DENY_LIST=
+API_DOWNLOAD_FROM_DENY_LIST=^https?://(10\.|172\.(1[6-9]|2[0-9]|3[01])\.|192\.168\.|169\.254\.|0\.0\.0\.0|127\.|localhost|\[::1\]|\[fd)
 API_DOWNLOAD_FROM_MAX_RETRY=4
 API_DISABLE_DOWNLOAD_FROM=false
-API_DISABLE_HEALTH_CHECK_ROUTE_TELEMETRY=false
-API_DISABLE_ROOT_ROUTE_TELEMETRY=false
-API_DISABLE_VERSION_ROUTE_TELEMETRY=false
-API_DISABLE_DEBUG_ROUTE_TELEMETRY=false
+API_DISABLE_HEALTH_CHECK_ROUTE_TELEMETRY=true
+API_DISABLE_ROOT_ROUTE_TELEMETRY=true
+API_DISABLE_DEBUG_ROUTE_TELEMETRY=true
+API_DISABLE_VERSION_ROUTE_TELEMETRY=true
 API_ENABLE_DEBUG_ROUTE=false
 CHROMIUM_RESTART_AFTER=100
 CHROMIUM_MAX_QUEUE_SIZE=0
+CHROMIUM_IDLE_SHUTDOWN_TIMEOUT=0
 CHROMIUM_MAX_CONCURRENCY=6
 CHROMIUM_AUTO_START=false
 CHROMIUM_START_TIMEOUT=20s
@@ -53,6 +55,7 @@ CHROMIUM_DISABLE_JAVASCRIPT=false
 CHROMIUM_DISABLE_ROUTES=false
 LIBREOFFICE_RESTART_AFTER=10
 LIBREOFFICE_MAX_QUEUE_SIZE=0
+LIBREOFFICE_IDLE_SHUTDOWN_TIMEOUT=0
 LIBREOFFICE_AUTO_START=false
 LIBREOFFICE_START_TIMEOUT=20s
 LIBREOFFICE_DISABLE_ROUTES=false
@@ -60,15 +63,26 @@ LOG_LEVEL=info
 LOG_FIELDS_PREFIX=
 LOG_STD_FORMAT=auto
 LOG_STD_ENABLE_GCP_FIELDS=false
+PDFENGINES_DISABLE_ROUTES=false
 PDFENGINES_MERGE_ENGINES=qpdf,pdfcpu,pdftk
 PDFENGINES_SPLIT_ENGINES=pdfcpu,qpdf,pdftk
 PDFENGINES_FLATTEN_ENGINES=qpdf
 PDFENGINES_CONVERT_ENGINES=libreoffice-pdfengine
 PDFENGINES_READ_METADATA_ENGINES=exiftool
 PDFENGINES_WRITE_METADATA_ENGINES=exiftool
+PDFENGINES_READ_BOOKMARKS_ENGINES=pdfcpu
+PDFENGINES_WRITE_BOOKMARKS_ENGINES=pdfcpu
+PDFENGINES_WATERMARK_ENGINES=pdfcpu,pdftk
+PDFENGINES_STAMP_ENGINES=pdfcpu,pdftk
 PDFENGINES_ENCRYPT_ENGINES=qpdf,pdfcpu,pdftk
-PDFENGINES_DISABLE_ROUTES=false
-PDFENGINES_ADD_ATTACHMENTS_ENGINES=pdfcpu
+PDFENGINES_ROTATE_ENGINES=pdfcpu,pdftk
+PDFENGINES_EMBED_ENGINES=qpdf,pdfcpu
+PDFENGINES_EMBED_METADATA_ENGINES=qpdf
+PROMETHEUS_NAMESPACE=gotenberg
+PROMETHEUS_COLLECT_INTERVAL=1s
+PROMETHEUS_DISABLE_ROUTE_TELEMETRY=true
+PROMETHEUS_DISABLE_COLLECT=false
+PROMETHEUS_METRICS_PATH=/prometheus/metrics
 OTEL_SERVICE_NAME=gotenberg
 OTEL_TRACES_EXPORTER=none
 OTEL_METRICS_EXPORTER=none
@@ -78,9 +92,7 @@ OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4317
 OTEL_EXPORTER_OTLP_INSECURE=true
 WEBHOOK_ENABLE_SYNC_MODE=false
 WEBHOOK_ALLOW_LIST=
-WEBHOOK_DENY_LIST=
-WEBHOOK_ERROR_ALLOW_LIST=
-WEBHOOK_ERROR_DENY_LIST=
+WEBHOOK_DENY_LIST=^https?://(10\.|172\.(1[6-9]|2[0-9]|3[01])\.|192\.168\.|169\.254\.|0\.0\.0\.0|127\.|localhost|\[::1\]|\[fd)
 WEBHOOK_MAX_RETRY=4
 WEBHOOK_RETRY_MIN_WAIT=1s
 WEBHOOK_RETRY_MAX_WAIT=30s
@@ -114,6 +126,9 @@ NO_CONCURRENCY=false
 # chromium-convert-html
 # chromium-convert-markdown
 # chromium-convert-url
+# chromium-screenshot-html
+# chromium-screenshot-markdown
+# chromium-screenshot-url
 # debug
 # health
 # libreoffice
@@ -121,8 +136,8 @@ NO_CONCURRENCY=false
 # output-filename
 # pdfengines
 # pdfengines-convert
-# pdfengines-attachments
-# attachments
+# pdfengines-embed
+# embed
 # pdfengines-encrypt
 # encrypt
 # pdfengines-flatten
@@ -133,15 +148,23 @@ NO_CONCURRENCY=false
 # metadata
 # pdfengines-split
 # split
+# pdfengines-watermark
+# watermark
+# pdfengines-stamp
+# stamp
+# pdfengines-rotate
+# rotate
+# pdfengines-bookmarks
+# bookmarks
+# prometheus-metrics
 # root
 # version
 # webhook
 # download-from
-# telemetry
 TAGS=
 
 .PHONY: test-integration
-test-integration: ## Run integration tests
+test-integration: ## Run integration tests (automatically retries failed scenarios up to 3 times)
 	go test -timeout 40m -tags=integration -v github.com/gotenberg/gotenberg/v8/test/integration -args \
 	--gotenberg-docker-repository=$(DOCKER_REPOSITORY) \
 	--gotenberg-version=$(GOTENBERG_VERSION) \

README.md

@@ -1,7 +1,7 @@
 <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 containerized API for seamless PDF conversion</p>
+    <p align="center">A Docker-based API for converting documents to PDF</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://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>
@@ -10,38 +10,60 @@
     <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">Read the Documentation</a> &#183; <a href="https://gotenberg.dev/docs/getting-started/installation#live-demo-">Try the Live Demo</a> 🔥</p>
+    <p align="center">
+        <a href="https://gotenberg.dev/docs/getting-started/introduction"><strong>Documentation</strong></a> &#183;
+        <a href="https://gotenberg.dev/docs/getting-started/installation#live-demo"><strong>Live Demo</strong></a> &#183;
+        <a href="https://github.com/gotenberg/gotenberg/discussions"><strong>Community</strong></a>
+    </p>
 </p>
 
 ---
 
-**Gotenberg** is a containerized API that abstracts the complexity of PDF conversion.
+**Gotenberg** is a Docker-based API for converting documents to PDF. Trusted in production by thousands of companies. Also adopted by notable open-source projects.
 
-It provides a `multipart/form-data` interface for interacting with powerful engines like Chromium and LibreOffice.
-Instead of managing heavy dependencies, browser versions, or fonts in your own backend, simply send your files to
-Gotenberg and get a PDF in return.
+Send your files via `multipart/form-data`, get a PDF back. No need to manage Chromium, LibreOffice, or fonts yourself.
 
 ## Quick Start
 
-Open a terminal and run the following command:
-
 ```bash
 docker run --rm -p 3000:3000 gotenberg/gotenberg:8
 ```
 
-With the API running at `http://localhost:3000`, you are now ready to head
-to the **[Full Documentation](https://gotenberg.dev/docs/getting-started/introduction)** to discover how to convert URLs,
-local files, inject custom CSS, merge PDFs, and more.
+Convert a URL to PDF:
+
+```bash
+curl \
+  --request POST http://localhost:3000/forms/chromium/convert/url \
+  --form url=https://sparksuite.github.io/simple-html-invoice-template/ \
+  -o invoice.pdf
+```
+
+## Features
+
+- **HTML, URL, Markdown to PDF** via Headless Chromium
+- **Office documents to PDF** via LibreOffice (100+ formats)
+- **Merge, split, rotate, flatten** PDFs
+- **Watermark, stamp, encrypt** PDFs
+- **PDF/A and PDF/UA** compliance
+- **Screenshots** of URLs and HTML
+- **Read/write metadata and bookmarks**
+
+See the [full documentation](https://gotenberg.dev/docs/getting-started/introduction).
+
+## Contributing
+
+Questions and feedback: [GitHub Discussions](https://github.com/gotenberg/gotenberg/discussions).
+Bug reports: [GitHub Issues](https://github.com/gotenberg/gotenberg/issues).
 
 ## Sponsors
 
-Open-source development takes a significant amount of time, energy, and dedication. If Gotenberg helps streamline your
-workflow or powers your business, please consider supporting its continuous improvement by [**becoming a sponsor**](https://github.com/sponsors/gulien)! ❤️
+If Gotenberg powers your workflow or your business, consider [**becoming a sponsor**](https://github.com/sponsors/gulien).
 
 **Historic & GitHub Sponsors**
 
 - [TheCodingMachine](https://thecodingmachine.com/)
 - [pdfme](https://pdfme.com/)
+- [PDFBolt](https://pdfbolt.com)
 
 **Powered By**
 

SECURITY.md

@@ -2,40 +2,28 @@
 
 ## Supported Versions
 
-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.
+Only the latest version receives security updates and patches. Keep your environment up to date.
 
 ## Reporting a Vulnerability
 
-Your help in identifying vulnerabilities in our project is much appreciated.
-We take all reports regarding security seriously.
+Do not publish vulnerabilities publicly. Report them through [GitHub's private vulnerability reporting](https://github.com/gotenberg/gotenberg/security/advisories/new).
 
-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 your message, please include:
+Include:
 
 - A detailed description of the vulnerability.
-- The steps to reproduce the issue.
-- Any potential impact of the vulnerability on the users or system.
+- Steps to reproduce the issue.
+- Potential impact on users or the system.
 
-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.
-
-Thank you in advance for helping to keep our project safe!
+This process is handled on a best-effort basis. Response speed may vary depending on severity and available resources.
 
 ## Disclosure Policy
 
-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:
+Once a report is received and confirmed:
 
-- 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.
+- A fix and release timeline will be prepared.
+- The reporter will be notified when the fix is released.
+- The reporter will be credited for the discovery (unless anonymity is requested).
 
 ## Comments on this Policy
 
-If you have suggestions on how this process could be improved, please submit a pull request.
+Submit a pull request with suggestions for improving this process.

build/Dockerfile

@@ -17,16 +17,16 @@ ENV CGO_ENABLED=0
 # Define the working directory outside of $GOPATH (we're using go modules).
 WORKDIR /home
 
-RUN curl -Ls "https://github.com/pdfcpu/pdfcpu/archive/refs/tags/$PDFCPU_VERSION.tar.gz" -o pdfcpu.tar.gz &&\
-    tar --strip-components=1 -xvzf pdfcpu.tar.gz
+RUN curl -Ls "https://github.com/pdfcpu/pdfcpu/archive/refs/tags/$PDFCPU_VERSION.tar.gz" -o pdfcpu.tar.gz \
+    && tar --strip-components=1 -xvzf pdfcpu.tar.gz
 
 # Install module dependencies.
-RUN go mod download &&\
-    go mod verify
+RUN go mod download \
+    && go mod verify
 
-RUN go build -o pdfcpu -ldflags "-s -w -X 'main.version=$PDFCPU_VERSION' -X 'github.com/pdfcpu/pdfcpu/pkg/pdfcpu.VersionStr=$PDFCPU_VERSION' -X main.builtBy=gotenberg" ./cmd/pdfcpu &&\
+RUN go build -o pdfcpu -ldflags "-s -w -X 'main.version=$PDFCPU_VERSION' -X 'github.com/pdfcpu/pdfcpu/pkg/pdfcpu.VersionStr=$PDFCPU_VERSION' -X main.builtBy=gotenberg" ./cmd/pdfcpu \
     # Verify installation.
-    ./pdfcpu version
+    && ./pdfcpu version
 
 # ----------------------------------------------
 # Gotenberg binary build stage
@@ -42,14 +42,16 @@ WORKDIR /home
 # Install module dependencies.
 COPY go.mod go.sum ./
 
-RUN go mod download &&\
-    go mod verify
+RUN go mod download \
+    && go mod verify
 
 # Copy the source code.
 COPY cmd ./cmd
 COPY pkg ./pkg
 
-RUN go build -o gotenberg -ldflags "-s -w -X 'github.com/gotenberg/gotenberg/v8/cmd.Version=$GOTENBERG_VERSION'" cmd/gotenberg/main.go
+RUN go build -o gotenberg -ldflags "-s -w -X 'github.com/gotenberg/gotenberg/v8/cmd.Version=$GOTENBERG_VERSION'" cmd/gotenberg/main.go \
+    && go build -o gotenberg-chromium -ldflags "-s -w -X 'github.com/gotenberg/gotenberg/v8/cmd.Version=$GOTENBERG_VERSION'" cmd/gotenberg-chromium/main.go \
+    && go build -o gotenberg-libreoffice -ldflags "-s -w -X 'github.com/gotenberg/gotenberg/v8/cmd.Version=$GOTENBERG_VERSION'" cmd/gotenberg-libreoffice/main.go
 
 # ----------------------------------------------
 # Custom JRE stage
@@ -57,14 +59,13 @@ RUN go build -o gotenberg -ldflags "-s -w -X 'github.com/gotenberg/gotenberg/v8/
 # ----------------------------------------------
 FROM debian:13-slim AS custom-jre-stage
 
-RUN \
-    apt-get update -qq &&\
-    apt-get upgrade -yqq &&\
-    DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends default-jdk-headless binutils
+RUN apt-get update -qq \
+    && apt-get upgrade -yqq \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends default-jdk-headless binutils
 
 # Note: jdeps helps finding which modules a JAR requires.
 # Currently only for PDFtk, as we don't rely on LibreOffice UNO Java SDK.
-ENV JAVA_MODULES=java.base,java.desktop,java.xml
+ENV JAVA_MODULES=java.base,java.desktop,java.naming,java.sql
 
 RUN jlink \
     --add-modules $JAVA_MODULES \
@@ -82,16 +83,16 @@ FROM debian:13-slim AS downloader-stage
 # See https://gitlab.com/pdftk-java/pdftk/-/releases - Binary package.
 ARG PDFTK_VERSION=v3.3.3
 
-RUN apt-get update -qq && \
-    DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends curl ca-certificates
+RUN apt-get update -qq \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends curl ca-certificates
 
 WORKDIR /downloads
 
-RUN curl -Ls https://raw.githubusercontent.com/gotenberg/unoconverter/v0.2.0/unoconv -o unoconverter &&\
-    chmod +x unoconverter
+RUN curl -Ls https://raw.githubusercontent.com/gotenberg/unoconverter/v0.2.0/unoconv -o unoconverter \
+    && chmod +x unoconverter
 
-RUN curl -o pdftk-all.jar "https://gitlab.com/api/v4/projects/5024297/packages/generic/pdftk-java/$PDFTK_VERSION/pdftk-all.jar" &&\
-    chmod a+x pdftk-all.jar
+RUN curl -o pdftk-all.jar "https://gitlab.com/api/v4/projects/5024297/packages/generic/pdftk-java/$PDFTK_VERSION/pdftk-all.jar" \
+    && chmod a+x pdftk-all.jar
 
 # ----------------------------------------------
 # Base image stage
@@ -100,48 +101,33 @@ FROM debian:13-slim AS base-image-stage
 
 ARG TIMEZONE=UTC
 ENV TZ=$TIMEZONE
-# Set default characterset encoding to UTF-8.
-# See:
-# https://github.com/gotenberg/gotenberg/issues/104
-# https://github.com/gotenberg/gotenberg/issues/730
-ENV LANG=C.UTF-8
-ENV LC_ALL=C.UTF-8
 
 COPY --link --from=custom-jre-stage /custom-jre /opt/java
 
 ENV PATH="/opt/java/bin:${PATH}"
 
 # ----------------------------------------------
-# Final stage
+# Common stage
 # ----------------------------------------------
-FROM base-image-stage
+FROM base-image-stage AS common-stage
 
-ARG GOTENBERG_VERSION=snapshot
 ARG GOTENBERG_USER_GID=1001
 ARG GOTENBERG_USER_UID=1001
 
-LABEL org.opencontainers.image.title="Gotenberg" \
-    org.opencontainers.image.description="A containerized API for seamless PDF conversion." \
-    org.opencontainers.image.version="$GOTENBERG_VERSION" \
-    org.opencontainers.image.authors="Julien Neuhart <neuhart.julien@gmail.com>" \
-    org.opencontainers.image.documentation="https://gotenberg.dev" \
-    org.opencontainers.image.source="https://github.com/gotenberg/gotenberg"
+# Create a non-root user.
+# All processes in the Docker container will run with this dedicated user.
+RUN groupadd --gid "$GOTENBERG_USER_GID" gotenberg \
+    && useradd --uid "$GOTENBERG_USER_UID" --gid gotenberg --shell /bin/bash --home /home/gotenberg --no-create-home gotenberg \
+    && mkdir /home/gotenberg \
+    && chown gotenberg: /home/gotenberg
 
-RUN \
-    # Create a non-root user.
-    # All processes in the Docker container will run with this dedicated user.
-    groupadd --gid "$GOTENBERG_USER_GID" gotenberg &&\
-    useradd --uid "$GOTENBERG_USER_UID" --gid gotenberg --shell /bin/bash --home /home/gotenberg --no-create-home gotenberg &&\
-    mkdir /home/gotenberg &&\
-    chown gotenberg: /home/gotenberg
-
-RUN \
-    echo "deb http://deb.debian.org/debian trixie-backports main" >> /etc/apt/sources.list &&\
-    apt-get update -qq &&\
-    apt-get upgrade -yqq &&\
-    # Note: tini is a helper for reaping zombie processes.
-    DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends \
-        tini python3 python3-distutils-extra \
+# Note: tini is a helper for reaping zombie processes.
+RUN apt-get update -qq \
+    && apt-get upgrade -yqq \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends \
+        tini \
+        # Many users rely on curl for Docker health checks.
+        curl \
         # Install fonts.
         # Essential metric-compatible fonts for LibreOffice layout fidelity (replaces MS Fonts).
         fonts-crosextra-carlito \
@@ -154,46 +140,29 @@ RUN \
         fonts-noto-cjk \
         # Standard Emoji support.
         fonts-noto-color-emoji \
-        # Install Hyphenation for LibreOffice.
-        # Credits: https://wiki.archlinux.org/title/LibreOffice.
-        hyphen-af hyphen-as hyphen-be hyphen-bg hyphen-bn hyphen-ca hyphen-cs hyphen-da hyphen-de hyphen-el \
-        hyphen-en-gb hyphen-en-us hyphen-eo hyphen-es hyphen-fr hyphen-gl hyphen-gu hyphen-hi hyphen-hr hyphen-hu \
-        hyphen-id hyphen-is hyphen-it hyphen-kn hyphen-lt hyphen-lv hyphen-ml hyphen-mn hyphen-mr hyphen-nl \
-        hyphen-no hyphen-or hyphen-pa hyphen-pl hyphen-pt-br hyphen-pt-pt hyphen-ro hyphen-ru hyphen-sk hyphen-sl \
-        hyphen-sr hyphen-sv hyphen-ta hyphen-te hyphen-th hyphen-uk hyphen-zu \
-        # Install Chromium.
-        chromium \
+        # Tofu prevention.
+        fonts-noto-core \
         # Install QPDF & ExifTool (PDF engines).
-        qpdf exiftool &&\
-    # Install LibreOffice & unoconverter.
-    DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends -t trixie-backports \
-        libreoffice-writer libreoffice-calc libreoffice-impress libreoffice-draw python3-uno &&\
-    # unoconverter will look for the Python binary, which has to be at version 3.
-    ln -s /usr/bin/python3 /usr/bin/python &&\
+        qpdf exiftool \
     # See https://github.com/nextcloud/docker/issues/380.
-    mkdir -p /usr/share/man/man1 &&\
+    && mkdir -p /usr/share/man/man1 \
     # Cleanup.
-    apt-get autoremove -yqq &&\
-    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/* /usr/share/man/* /usr/share/info/*
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
-# Copy downloaded artifacts (unoconverter & PDFtk).
-COPY --link --from=downloader-stage /downloads/unoconverter /usr/bin/unoconverter
-COPY --link --from=downloader-stage /downloads/pdftk-all.jar /usr/bin/pdftk-all.jar
-
-RUN \
-    # Install PDFtk bash wrapper.
-    # See https://github.com/gotenberg/gotenberg/pull/273.
-    printf '#!/bin/bash\n\nexec java -jar /usr/bin/pdftk-all.jar "$@"' > /usr/bin/pdftk && \
-    chmod +x /usr/bin/pdftk
+# PDFtk bash wrapper.
+# See https://github.com/gotenberg/gotenberg/pull/273.
+RUN printf '#!/bin/bash\n\nexec java -jar /usr/bin/pdftk-all.jar "$@"' > /usr/bin/pdftk \
+    && chmod +x /usr/bin/pdftk
 
 # Support for arbitrary user IDs (OpenShift).
 # See:
 # https://github.com/gotenberg/gotenberg/issues/1049.
 # https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/images/creating-images#use-uid_create-images.
-RUN \
-    usermod -aG root gotenberg &&\
-    chgrp -R 0 /home/gotenberg &&\
-    chmod -R g=u /home/gotenberg
+RUN usermod -aG root gotenberg \
+    && chgrp -R 0 /home/gotenberg \
+    && chmod -R g=u /home/gotenberg
+
+# COPY instructions last to maximize cache reuse when only source code changes.
 
 # Improve fonts subpixel hinting and smoothing.
 # Credits:
@@ -201,24 +170,104 @@ RUN \
 # https://github.com/arachnys/athenapdf/commit/ba25a8d80a25d08d58865519c4cd8756dc9a336d.
 COPY --link build/fonts.conf /etc/fonts/conf.d/100-gotenberg.conf
 
-# Copy dictionnaries so that hypens work on Chromium.
-# See https://github.com/gotenberg/gotenberg/issues/1293.
-COPY --link --chown="$GOTENBERG_USER_UID:$GOTENBERG_USER_GID" build/chromium-hyphen-data /opt/gotenberg/chromium-hyphen-data
+# Copy PDFtk jar.
+COPY --link --from=downloader-stage /downloads/pdftk-all.jar /usr/bin/pdftk-all.jar
 
-# Copy the Golang binaries.
+# Copy the pdfcpu binary (shared across all variants).
 COPY --link --from=pdfcpu-binary-stage /home/pdfcpu /usr/bin/
-COPY --link --from=gotenberg-binary-stage /home/gotenberg /usr/bin/
 
-# Environment variables required by modules or else.
-ENV CHROMIUM_BIN_PATH=/usr/bin/chromium
-ENV CHROMIUM_HYPHEN_DATA_DIR_PATH=/opt/gotenberg/chromium-hyphen-data
-ENV LIBREOFFICE_BIN_PATH=/usr/lib/libreoffice/program/soffice.bin
-ENV UNOCONVERTER_BIN_PATH=/usr/bin/unoconverter
+# Set default characterset encoding to UTF-8.
+# See:
+# https://github.com/gotenberg/gotenberg/issues/104
+# https://github.com/gotenberg/gotenberg/issues/730
+ENV LANG=C.UTF-8
+ENV LC_ALL=C.UTF-8
+
+# Environment variables for PDF engines.
 ENV PDFTK_BIN_PATH=/usr/bin/pdftk
 ENV QPDF_BIN_PATH=/usr/bin/qpdf
 ENV EXIFTOOL_BIN_PATH=/usr/bin/exiftool
 ENV PDFCPU_BIN_PATH=/usr/bin/pdfcpu
 
+# OpenTelemetry defaults (noop - no telemetry overhead unless explicitly enabled).
+ENV OTEL_TRACES_EXPORTER=none
+ENV OTEL_METRICS_EXPORTER=none
+ENV OTEL_LOGS_EXPORTER=none
+
+# ----------------------------------------------
+# Final stage: full (Chromium + LibreOffice)
+# ----------------------------------------------
+FROM common-stage AS gotenberg
+
+ARG GOTENBERG_VERSION=snapshot
+ARG GOTENBERG_USER_GID=1001
+ARG GOTENBERG_USER_UID=1001
+ARG TMP_CHROMIUM_VERSION_PPC64EL="146.0.7680.80-1~deb13u1"
+
+LABEL org.opencontainers.image.title="Gotenberg" \
+    org.opencontainers.image.description="A Docker-based API for converting documents to PDF." \
+    org.opencontainers.image.version="$GOTENBERG_VERSION" \
+    org.opencontainers.image.authors="Julien Neuhart <neuhart.julien@gmail.com>" \
+    org.opencontainers.image.documentation="https://gotenberg.dev" \
+    org.opencontainers.image.source="https://github.com/gotenberg/gotenberg"
+
+# Install Chromium.
+# On ppc64el, the latest Chromium is broken, so we pin a known working
+# version from snapshot.debian.org via debsnap.
+RUN /bin/bash -c \
+    'set -e &&\
+    if [[ "$(dpkg --print-architecture)" == "ppc64el" ]]; then \
+      apt-get update -qq &&\
+      DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends devscripts &&\
+      debsnap chromium-common "$TMP_CHROMIUM_VERSION_PPC64EL" -v --force --binary --architecture ppc64el &&\
+      debsnap chromium "$TMP_CHROMIUM_VERSION_PPC64EL" -v --force --binary --architecture ppc64el &&\
+      DEBIAN_FRONTEND=noninteractive apt-get install --fix-broken -y -qq --no-install-recommends "./binary-chromium-common/chromium-common_${TMP_CHROMIUM_VERSION_PPC64EL}_ppc64el.deb" "./binary-chromium/chromium_${TMP_CHROMIUM_VERSION_PPC64EL}_ppc64el.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' \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# Install LibreOffice & unoconverter.
+RUN echo "deb http://deb.debian.org/debian trixie-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 \
+        python3 python3-distutils-extra \
+        # Install Hyphenation for LibreOffice.
+        # Credits: https://wiki.archlinux.org/title/LibreOffice.
+        hyphen-af hyphen-as hyphen-be hyphen-bg hyphen-bn hyphen-ca hyphen-cs hyphen-da hyphen-de hyphen-el \
+        hyphen-en-gb hyphen-en-us hyphen-eo hyphen-es hyphen-fr hyphen-gl hyphen-gu hyphen-hi hyphen-hr hyphen-hu \
+        hyphen-id hyphen-is hyphen-it hyphen-kn hyphen-lt hyphen-lv hyphen-ml hyphen-mn hyphen-mr hyphen-nl \
+        hyphen-no hyphen-or hyphen-pa hyphen-pl hyphen-pt-br hyphen-pt-pt hyphen-ro hyphen-ru hyphen-sk hyphen-sl \
+        hyphen-sr hyphen-sv hyphen-ta hyphen-te hyphen-th hyphen-uk hyphen-zu \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends -t trixie-backports \
+        libreoffice-writer libreoffice-calc libreoffice-impress libreoffice-draw python3-uno \
+    # unoconverter will look for the Python binary, which has to be at version 3.
+    && ln -s /usr/bin/python3 /usr/bin/python \
+    # Cleanup.
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# COPY instructions last to maximize cache reuse.
+
+# Copy the Gotenberg binary (full variant with all modules).
+COPY --link --from=gotenberg-binary-stage /home/gotenberg /usr/bin/
+
+# Copy unoconverter.
+COPY --link --from=downloader-stage /downloads/unoconverter /usr/bin/unoconverter
+
+# Copy dictionnaries so that hyphens work on Chromium.
+# See https://github.com/gotenberg/gotenberg/issues/1293.
+COPY --link --chown="$GOTENBERG_USER_UID:$GOTENBERG_USER_GID" build/chromium-hyphen-data /opt/gotenberg/chromium-hyphen-data
+
+ENV CHROMIUM_BIN_PATH=/usr/bin/chromium
+ENV CHROMIUM_HYPHEN_DATA_DIR_PATH=/opt/gotenberg/chromium-hyphen-data
+ENV LIBREOFFICE_BIN_PATH=/usr/lib/libreoffice/program/soffice.bin
+ENV UNOCONVERTER_BIN_PATH=/usr/bin/unoconverter
+
 USER gotenberg
 WORKDIR /home/gotenberg
 
@@ -226,4 +275,235 @@ WORKDIR /home/gotenberg
 EXPOSE 3000
 
 ENTRYPOINT [ "/usr/bin/tini", "--" ]
-CMD [ "gotenberg" ]
+CMD [ "gotenberg" ]
+
+# ----------------------------------------------
+# Final stage: Chromium only
+# ----------------------------------------------
+FROM common-stage AS gotenberg-chromium
+
+ARG GOTENBERG_VERSION=snapshot
+ARG GOTENBERG_USER_GID=1001
+ARG GOTENBERG_USER_UID=1001
+ARG TMP_CHROMIUM_VERSION_PPC64EL="146.0.7680.80-1~deb13u1"
+
+LABEL org.opencontainers.image.title="Gotenberg (Chromium)" \
+    org.opencontainers.image.description="A Docker-based API for converting documents to PDF — Chromium variant." \
+    org.opencontainers.image.version="$GOTENBERG_VERSION" \
+    org.opencontainers.image.authors="Julien Neuhart <neuhart.julien@gmail.com>" \
+    org.opencontainers.image.documentation="https://gotenberg.dev" \
+    org.opencontainers.image.source="https://github.com/gotenberg/gotenberg"
+
+# Install Chromium.
+# On ppc64el, the latest Chromium is broken, so we pin a known working
+# version from snapshot.debian.org via debsnap.
+RUN /bin/bash -c \
+    'set -e &&\
+    if [[ "$(dpkg --print-architecture)" == "ppc64el" ]]; then \
+      apt-get update -qq &&\
+      DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends devscripts &&\
+      debsnap chromium-common "$TMP_CHROMIUM_VERSION_PPC64EL" -v --force --binary --architecture ppc64el &&\
+      debsnap chromium "$TMP_CHROMIUM_VERSION_PPC64EL" -v --force --binary --architecture ppc64el &&\
+      DEBIAN_FRONTEND=noninteractive apt-get install --fix-broken -y -qq --no-install-recommends "./binary-chromium-common/chromium-common_${TMP_CHROMIUM_VERSION_PPC64EL}_ppc64el.deb" "./binary-chromium/chromium_${TMP_CHROMIUM_VERSION_PPC64EL}_ppc64el.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' \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# COPY instructions last to maximize cache reuse.
+
+# Copy the Gotenberg binary (Chromium variant, no LibreOffice modules).
+COPY --link --from=gotenberg-binary-stage /home/gotenberg-chromium /usr/bin/gotenberg
+
+# Copy dictionnaries so that hyphens work on Chromium.
+# See https://github.com/gotenberg/gotenberg/issues/1293.
+COPY --link --chown="$GOTENBERG_USER_UID:$GOTENBERG_USER_GID" build/chromium-hyphen-data /opt/gotenberg/chromium-hyphen-data
+
+ENV CHROMIUM_BIN_PATH=/usr/bin/chromium
+ENV CHROMIUM_HYPHEN_DATA_DIR_PATH=/opt/gotenberg/chromium-hyphen-data
+# No LibreOffice in this variant; override the default to use all available engines.
+ENV PDFENGINES_CONVERT_ENGINES=
+
+USER gotenberg
+WORKDIR /home/gotenberg
+
+# Default API port.
+EXPOSE 3000
+
+ENTRYPOINT [ "/usr/bin/tini", "--" ]
+CMD [ "gotenberg" ]
+
+# ----------------------------------------------
+# Final stage: LibreOffice only
+# ----------------------------------------------
+FROM common-stage AS gotenberg-libreoffice
+
+ARG GOTENBERG_VERSION=snapshot
+
+LABEL org.opencontainers.image.title="Gotenberg (LibreOffice)" \
+    org.opencontainers.image.description="A Docker-based API for converting documents to PDF — LibreOffice variant." \
+    org.opencontainers.image.version="$GOTENBERG_VERSION" \
+    org.opencontainers.image.authors="Julien Neuhart <neuhart.julien@gmail.com>" \
+    org.opencontainers.image.documentation="https://gotenberg.dev" \
+    org.opencontainers.image.source="https://github.com/gotenberg/gotenberg"
+
+# Install LibreOffice & unoconverter.
+RUN echo "deb http://deb.debian.org/debian trixie-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 \
+        python3 python3-distutils-extra \
+        # Install Hyphenation for LibreOffice.
+        # Credits: https://wiki.archlinux.org/title/LibreOffice.
+        hyphen-af hyphen-as hyphen-be hyphen-bg hyphen-bn hyphen-ca hyphen-cs hyphen-da hyphen-de hyphen-el \
+        hyphen-en-gb hyphen-en-us hyphen-eo hyphen-es hyphen-fr hyphen-gl hyphen-gu hyphen-hi hyphen-hr hyphen-hu \
+        hyphen-id hyphen-is hyphen-it hyphen-kn hyphen-lt hyphen-lv hyphen-ml hyphen-mn hyphen-mr hyphen-nl \
+        hyphen-no hyphen-or hyphen-pa hyphen-pl hyphen-pt-br hyphen-pt-pt hyphen-ro hyphen-ru hyphen-sk hyphen-sl \
+        hyphen-sr hyphen-sv hyphen-ta hyphen-te hyphen-th hyphen-uk hyphen-zu \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends -t trixie-backports \
+        libreoffice-writer libreoffice-calc libreoffice-impress libreoffice-draw python3-uno \
+    # unoconverter will look for the Python binary, which has to be at version 3.
+    && ln -s /usr/bin/python3 /usr/bin/python \
+    # Cleanup.
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# COPY instructions last to maximize cache reuse.
+
+# Copy the Gotenberg binary (LibreOffice variant, no Chromium modules).
+COPY --link --from=gotenberg-binary-stage /home/gotenberg-libreoffice /usr/bin/gotenberg
+
+# Copy unoconverter.
+COPY --link --from=downloader-stage /downloads/unoconverter /usr/bin/unoconverter
+
+ENV LIBREOFFICE_BIN_PATH=/usr/lib/libreoffice/program/soffice.bin
+ENV UNOCONVERTER_BIN_PATH=/usr/bin/unoconverter
+
+USER gotenberg
+WORKDIR /home/gotenberg
+
+# Default API port.
+EXPOSE 3000
+
+ENTRYPOINT [ "/usr/bin/tini", "--" ]
+CMD [ "gotenberg" ]
+
+# ==============================================================
+# Cloud Run variants
+# ==============================================================
+
+# ----------------------------------------------
+# Cloud Run: full (Chromium + LibreOffice)
+# ----------------------------------------------
+FROM gotenberg AS gotenberg-cloudrun
+
+USER root
+
+# For security reasons, the non-root user gotenberg does not own the Tini binary by default.
+# However, some providers like Cloud Run from Google Cloud cannot start a Docker container in that case.
+# See https://github.com/gotenberg/gotenberg/issues/90#issuecomment-543551353.
+RUN chown gotenberg: /usr/bin/tini
+
+ENV API_PORT_FROM_ENV=PORT
+ENV CHROMIUM_AUTO_START=true
+ENV LIBREOFFICE_AUTO_START=true
+ENV WEBHOOK_ENABLE_SYNC_MODE=true
+ENV GOTENBERG_BUILD_DEBUG_DATA=false
+ENV LOG_STD_ENABLE_GCP_FIELDS=true
+
+USER gotenberg
+
+# ----------------------------------------------
+# Cloud Run: Chromium only
+# ----------------------------------------------
+FROM gotenberg-chromium AS gotenberg-cloudrun-chromium
+
+USER root
+
+RUN chown gotenberg: /usr/bin/tini
+
+ENV API_PORT_FROM_ENV=PORT
+ENV CHROMIUM_AUTO_START=true
+ENV WEBHOOK_ENABLE_SYNC_MODE=true
+ENV GOTENBERG_BUILD_DEBUG_DATA=false
+ENV LOG_STD_ENABLE_GCP_FIELDS=true
+
+USER gotenberg
+
+# ----------------------------------------------
+# Cloud Run: LibreOffice only
+# ----------------------------------------------
+FROM gotenberg-libreoffice AS gotenberg-cloudrun-libreoffice
+
+USER root
+
+RUN chown gotenberg: /usr/bin/tini
+
+ENV API_PORT_FROM_ENV=PORT
+ENV LIBREOFFICE_AUTO_START=true
+ENV WEBHOOK_ENABLE_SYNC_MODE=true
+ENV GOTENBERG_BUILD_DEBUG_DATA=false
+ENV LOG_STD_ENABLE_GCP_FIELDS=true
+
+USER gotenberg
+
+# ==============================================================
+# AWS Lambda variants
+# ==============================================================
+
+# ----------------------------------------------
+# AWS Lambda: full (Chromium + LibreOffice)
+# ----------------------------------------------
+FROM gotenberg AS gotenberg-aws-lambda
+
+USER root
+
+COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.9.1 /lambda-adapter /opt/extensions/lambda-adapter
+
+ENV AWS_LWA_PORT=3000
+ENV AWS_LWA_READINESS_CHECK_PATH=/health
+ENV AWS_LWA_INVOKE_MODE=buffered
+ENV API_PORT_FROM_ENV=AWS_LWA_PORT
+ENV WEBHOOK_ENABLE_SYNC_MODE=true
+ENV GOTENBERG_BUILD_DEBUG_DATA=false
+
+USER gotenberg
+
+# ----------------------------------------------
+# AWS Lambda: Chromium only
+# ----------------------------------------------
+FROM gotenberg-chromium AS gotenberg-aws-lambda-chromium
+
+USER root
+
+COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.9.1 /lambda-adapter /opt/extensions/lambda-adapter
+
+ENV AWS_LWA_PORT=3000
+ENV AWS_LWA_READINESS_CHECK_PATH=/health
+ENV AWS_LWA_INVOKE_MODE=buffered
+ENV API_PORT_FROM_ENV=AWS_LWA_PORT
+ENV WEBHOOK_ENABLE_SYNC_MODE=true
+ENV GOTENBERG_BUILD_DEBUG_DATA=false
+
+USER gotenberg
+
+# ----------------------------------------------
+# AWS Lambda: LibreOffice only
+# ----------------------------------------------
+FROM gotenberg-libreoffice AS gotenberg-aws-lambda-libreoffice
+
+USER root
+
+COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.9.1 /lambda-adapter /opt/extensions/lambda-adapter
+
+ENV AWS_LWA_PORT=3000
+ENV AWS_LWA_READINESS_CHECK_PATH=/health
+ENV AWS_LWA_INVOKE_MODE=buffered
+ENV API_PORT_FROM_ENV=AWS_LWA_PORT
+ENV WEBHOOK_ENABLE_SYNC_MODE=true
+ENV GOTENBERG_BUILD_DEBUG_DATA=false
+
+USER gotenberg

build/Dockerfile.aws-lambda

@@ -1,21 +0,0 @@
-ARG DOCKER_REGISTRY
-ARG DOCKER_REPOSITORY
-ARG GOTENBERG_VERSION
-
-FROM $DOCKER_REGISTRY/$DOCKER_REPOSITORY:$GOTENBERG_VERSION
-
-USER root
-
-COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.9.1 /lambda-adapter /opt/extensions/lambda-adapter
-
-# AWS.
-ENV AWS_LWA_PORT=3000
-ENV AWS_LWA_READINESS_CHECK_PATH=/health
-ENV AWS_LWA_INVOKE_MODE=buffered
-
-# Gotenberg.
-ENV API_PORT_FROM_ENV=AWS_LWA_PORT
-ENV WEBHOOK_ENABLE_SYNC_MODE=true
-ENV GOTENBERG_BUILD_DEBUG_DATA=false
-
-USER gotenberg

build/Dockerfile.cloudrun

@@ -1,22 +0,0 @@
-ARG DOCKER_REGISTRY
-ARG DOCKER_REPOSITORY
-ARG GOTENBERG_VERSION
-
-FROM $DOCKER_REGISTRY/$DOCKER_REPOSITORY:$GOTENBERG_VERSION
-
-USER root
-
-# For security reasons, the non-root user gotenberg does not own the Tini binary by default.
-# However, some providers like Cloud Run from Google Cloud cannot start a Docker container in that case.
-# See https://github.com/gotenberg/gotenberg/issues/90#issuecomment-543551353.
-RUN chown gotenberg: /usr/bin/tini
-
-# Gotenberg.
-ENV API_PORT_FROM_ENV=PORT
-ENV CHROMIUM_AUTO_START=true
-ENV LIBREOFFICE_AUTO_START=true
-ENV WEBHOOK_ENABLE_SYNC_MODE=true
-ENV GOTENBERG_BUILD_DEBUG_DATA=false
-ENV LOG_ENABLE_GCP_FIELDS=true
-
-USER gotenberg

cmd/gotenberg-chromium/main.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	gotenbergcmd "github.com/gotenberg/gotenberg/v8/cmd"
+	// Gotenberg modules (Chromium variant — no LibreOffice).
+	_ "github.com/gotenberg/gotenberg/v8/pkg/standard/chromium"
+)
+
+func main() {
+	gotenbergcmd.Run()
+}

cmd/gotenberg-libreoffice/main.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	gotenbergcmd "github.com/gotenberg/gotenberg/v8/cmd"
+	// Gotenberg modules (LibreOffice variant — no Chromium).
+	_ "github.com/gotenberg/gotenberg/v8/pkg/standard/libreoffice"
+)
+
+func main() {
+	gotenbergcmd.Run()
+}

cmd/gotenberg.go

@@ -25,7 +25,7 @@ const banner = `
 \___/\___/\__/\__/_//_/_.__/\__/_/  \_, / 
                                    /___/
 
-A containerized API for seamless PDF conversion.
+A Docker-based API for converting documents to PDF.
 Version: %s
 -------------------------------------------------------
 `
@@ -43,10 +43,24 @@ func Run() {
 	fs.Bool("gotenberg-hide-banner", false, "Hide the banner")
 	fs.Duration("gotenberg-graceful-shutdown-duration", time.Duration(30)*time.Second, "Set the graceful shutdown duration")
 	fs.Bool("gotenberg-build-debug-data", true, "Set if build data is needed")
-	fs.String("log-level", gotenberg.InfoLoggingLevel, fmt.Sprintf("Choose the level of logging detail. Options include %s, %s, %s, or %s", gotenberg.ErrorLoggingLevel, gotenberg.WarnLoggingLevel, gotenberg.InfoLoggingLevel, gotenberg.DebugLoggingLevel))
-	fs.String("log-fields-prefix", "", "Prepend a specified prefix to each field in the logs")
-	fs.String("log-std-format", gotenberg.AutoLoggingFormat, fmt.Sprintf("Specify the format of standard logging. Options include %s, %s, or %s", gotenberg.AutoLoggingFormat, gotenberg.JsonLoggingFormat, gotenberg.TextLoggingFormat))
-	fs.Bool("log-std-enable-gcp-fields", false, "Enable Google Cloud Platform fields for standard logging - namely: time, message, severity")
+
+	// Logging & telemetry flags.
+	fs.String("log-level", gotenberg.InfoLoggingLevel, "Set the log level")
+	fs.String("log-fields-prefix", "", "Prepend a specified prefix to each log field key")
+	fs.String("log-std-format", gotenberg.AutoLoggingFormat, "Set the log format for standard output")
+	fs.Bool("log-std-enable-gcp-fields", false, "Use GCP-compatible field names in log output")
+
+	// Deprecated logging flags.
+	fs.String("log-format", gotenberg.AutoLoggingFormat, "Set the log format")
+	fs.Bool("log-enable-gcp-fields", false, "Use GCP-compatible field names")
+
+	if err := errors.Join(
+		fs.MarkDeprecated("log-format", "use --log-std-format instead"),
+		fs.MarkDeprecated("log-enable-gcp-fields", "use --log-std-enable-gcp-fields instead"),
+	); err != nil {
+		fmt.Printf("[FATAL] mark deprecated flags: %s\n", err)
+		os.Exit(1)
+	}
 
 	descriptors := gotenberg.GetModuleDescriptors()
 	var modsInfo strings.Builder
@@ -80,10 +94,11 @@ func Run() {
 				fmt.Printf("[FATAL] invalid overriding value '%s' from %s: %v\n", val, envName, err)
 				os.Exit(1)
 			}
+			f.Changed = true
 			return
 		}
 
-		err = f.Value.Set(val)
+		err = fs.Set(f.Name, val)
 		if err != nil {
 			fmt.Printf("[FATAL] invalid overriding value '%s' from %s: %v\n", val, envName, err)
 			os.Exit(1)
@@ -95,43 +110,43 @@ func Run() {
 	hideBanner := parsedFlags.MustBool("gotenberg-hide-banner")
 	gracefulShutdownDuration := parsedFlags.MustDuration("gotenberg-graceful-shutdown-duration")
 
+	// Initialize telemetry (logging + OTEL).
 	serviceName := os.Getenv("OTEL_SERVICE_NAME")
 	if serviceName == "" {
 		serviceName = "gotenberg"
 	}
 
-	telemetryConfig := gotenberg.TelemetryConfig{
-		// OpenTelemetry.
-		ServiceName:    serviceName,
-		ServiceVersion: Version,
-		// Logging.
-		LogLevel:              parsedFlags.MustString("log-level"),
+	telemetryCfg := gotenberg.TelemetryConfig{
+		ServiceName:           serviceName,
+		ServiceVersion:        Version,
+		LogLevel:              parsedFlags.MustDeprecatedString("log-format", "log-std-format"),
 		LogFieldsPrefix:       parsedFlags.MustString("log-fields-prefix"),
 		LogStdFormat:          parsedFlags.MustDeprecatedString("log-format", "log-std-format"),
 		LogStdEnableGcpFields: parsedFlags.MustDeprecatedBool("log-enable-gcp-fields", "log-std-enable-gcp-fields"),
 	}
+	// LogLevel uses its own flag, not the format flag.
+	telemetryCfg.LogLevel = parsedFlags.MustString("log-level")
+
+	err = telemetryCfg.Validate()
+	if err != nil {
+		fmt.Printf("[FATAL] invalid telemetry config: %s\n", err)
+		os.Exit(1)
+	}
+
+	shutdownTelemetry, err := gotenberg.StartTelemetry(telemetryCfg)
+	if err != nil {
+		fmt.Printf("[FATAL] start telemetry: %s\n", err)
+		os.Exit(1)
+	}
 
 	if !hideBanner {
 		fmt.Printf(banner, Version)
 	}
-
-	err = telemetryConfig.Validate()
-	if err != nil {
-		fmt.Printf("[FATAL] telemetry: %s\n", err)
-		os.Exit(1)
-	}
-
-	// Telemetry.
-	shutdownTelemetry, err := gotenberg.StartTelemetry(telemetryConfig)
-	if err != nil {
-		fmt.Printf("[FATAL] telemetry: %s\n", err)
-		os.Exit(1)
-	}
-
-	// Modules.
 	fmt.Printf("[SYSTEM] modules: %s\n", modsInfo.String())
+
 	ctx := gotenberg.NewContext(parsedFlags, descriptors)
 
+	// Start application modules.
 	apps, err := ctx.Modules(new(gotenberg.App))
 	if err != nil {
 		fmt.Printf("[FATAL] %s\n", err)
@@ -223,16 +238,18 @@ func Run() {
 
 	err = eg.Wait()
 	if err != nil {
+		cancel()
 		fmt.Printf("[FATAL] %v\n", err)
-		os.Exit(1)
+		os.Exit(1) //nolint:gocritic // defers are already called explicitly above
 	}
 
+	// Shutdown telemetry (flush spans, metrics, logs).
 	err = shutdownTelemetry(gracefulShutdownCtx)
 	if err != nil {
-		fmt.Printf("[FATAL] telemetry: %v\n", err)
-		os.Exit(1)
+		cancel()
+		fmt.Printf("[FATAL] %v\n", err)
+		os.Exit(1) //nolint:gocritic // defers are already called explicitly above
 	}
-	fmt.Printf("[SYSTEM] telemetry: shutdown success\n")
 
 	os.Exit(0)
 }

compose.yaml

@@ -33,12 +33,13 @@ services:
       - "--api-disable-download-from=${API_DISABLE_DOWNLOAD_FROM}"
       - "--api-disable-health-check-route-telemetry=${API_DISABLE_HEALTH_CHECK_ROUTE_TELEMETRY}"
       - "--api-disable-root-route-telemetry=${API_DISABLE_ROOT_ROUTE_TELEMETRY}"
-      - "--api-disable-version-route-telemetry=${API_DISABLE_VERSION_ROUTE_TELEMETRY}"
       - "--api-disable-debug-route-telemetry=${API_DISABLE_DEBUG_ROUTE_TELEMETRY}"
+      - "--api-disable-version-route-telemetry=${API_DISABLE_VERSION_ROUTE_TELEMETRY}"
       - "--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}"
+      - "--chromium-idle-shutdown-timeout=${CHROMIUM_IDLE_SHUTDOWN_TIMEOUT}"
       - "--chromium-max-concurrency=${CHROMIUM_MAX_CONCURRENCY}"
       - "--chromium-start-timeout=${CHROMIUM_START_TIMEOUT}"
       - "--chromium-allow-insecure-localhost=${CHROMIUM_ALLOW_INSECURE_LOCALHOST}"
@@ -55,6 +56,7 @@ services:
       - "--chromium-disable-routes=${CHROMIUM_DISABLE_ROUTES}"
       - "--libreoffice-restart-after=${LIBREOFFICE_RESTART_AFTER}"
       - "--libreoffice-max-queue-size=${LIBREOFFICE_MAX_QUEUE_SIZE}"
+      - "--libreoffice-idle-shutdown-timeout=${LIBREOFFICE_IDLE_SHUTDOWN_TIMEOUT}"
       - "--libreoffice-auto-start=${LIBREOFFICE_AUTO_START}"
       - "--libreoffice-start-timeout=${LIBREOFFICE_START_TIMEOUT}"
       - "--libreoffice-disable-routes=${LIBREOFFICE_DISABLE_ROUTES}"
@@ -68,14 +70,23 @@ services:
       - "--pdfengines-convert-engines=${PDFENGINES_CONVERT_ENGINES}"
       - "--pdfengines-read-metadata-engines=${PDFENGINES_READ_METADATA_ENGINES}"
       - "--pdfengines-write-metadata-engines=${PDFENGINES_WRITE_METADATA_ENGINES}"
+      - "--pdfengines-read-bookmarks-engines=${PDFENGINES_READ_BOOKMARKS_ENGINES}"
+      - "--pdfengines-write-bookmarks-engines=${PDFENGINES_WRITE_BOOKMARKS_ENGINES}"
+      - "--pdfengines-watermark-engines=${PDFENGINES_WATERMARK_ENGINES}"
+      - "--pdfengines-stamp-engines=${PDFENGINES_STAMP_ENGINES}"
       - "--pdfengines-encrypt-engines=${PDFENGINES_ENCRYPT_ENGINES}"
+      - "--pdfengines-rotate-engines=${PDFENGINES_ROTATE_ENGINES}"
+      - "--pdfengines-embed-engines=${PDFENGINES_EMBED_ENGINES}"
+      - "--pdfengines-embed-metadata-engines=${PDFENGINES_EMBED_METADATA_ENGINES}"
       - "--pdfengines-disable-routes=${PDFENGINES_DISABLE_ROUTES}"
-      - "--pdfengines-add-attachments-engines=${PDFENGINES_ADD_ATTACHMENTS_ENGINES}"
+      - "--prometheus-namespace=${PROMETHEUS_NAMESPACE}"
+      - "--prometheus-collect-interval=${PROMETHEUS_COLLECT_INTERVAL}"
+      - "--prometheus-disable-route-telemetry=${PROMETHEUS_DISABLE_ROUTE_TELEMETRY}"
+      - "--prometheus-disable-collect=${PROMETHEUS_DISABLE_COLLECT}"
+      - "--prometheus-metrics-path=${PROMETHEUS_METRICS_PATH}"
       - "--webhook-enable-sync-mode=${WEBHOOK_ENABLE_SYNC_MODE}"
       - "--webhook-allow-list=${WEBHOOK_ALLOW_LIST}"
       - "--webhook-deny-list=${WEBHOOK_DENY_LIST}"
-      - "--webhook-error-allow-list=${WEBHOOK_ERROR_ALLOW_LIST}"
-      - "--webhook-error-deny-list=${WEBHOOK_ERROR_DENY_LIST}"
       - "--webhook-max-retry=${WEBHOOK_MAX_RETRY}"
       - "--webhook-retry-min-wait=${WEBHOOK_RETRY_MIN_WAIT}"
       - "--webhook-retry-max-wait=${WEBHOOK_RETRY_MAX_WAIT}"
@@ -90,14 +101,20 @@ services:
     ports:
       - "4317:4317" # OTLP gRPC receiver
     depends_on:
-      - openobserve
+      openobserve:
+        condition: service_started
+    restart: on-failure
 
   openobserve:
     image: public.ecr.aws/zinclabs/openobserve:latest
     restart: always
     ports:
       - "5080:5080"
-      - "5081:5081" # OTLP gRPC ingestion
+      - "5081:5081"
     environment:
       ZO_ROOT_USER_EMAIL: telemetry@gotenberg.dev
       ZO_ROOT_USER_PASSWORD: telemetry
+
+networks:
+  default:
+    enable_ipv6: false

go.mod

@@ -5,37 +5,36 @@ go 1.26.0
 require (
 	github.com/alexliesenfeld/health v0.8.1
 	github.com/barasher/go-exiftool v1.10.0
-	github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d
-	github.com/chromedp/chromedp v0.14.2
+	github.com/chromedp/cdproto v0.0.0-20260405000525-47a8ff65b46a
+	github.com/chromedp/chromedp v0.15.1
 	github.com/cucumber/godog v0.15.1
 	github.com/dlclark/regexp2 v1.11.5
-	github.com/docker/docker v28.5.2+incompatible
-	github.com/docker/go-connections v0.6.0
-	github.com/gomarkdown/markdown v0.0.0-20260217112301-37c66b85d6ab
+	github.com/gomarkdown/markdown v0.0.0-20260412113850-134a5b2cce7f
 	github.com/google/uuid v1.6.0
 	github.com/hashicorp/go-retryablehttp v0.7.8
 	github.com/labstack/echo/v4 v4.15.1
 	github.com/labstack/gommon v0.4.2
 	github.com/mholt/archives v0.1.5
 	github.com/microcosm-cc/bluemonday v1.0.27
-	github.com/shirou/gopsutil/v4 v4.26.1
+	github.com/moby/moby/api v1.54.1
+	github.com/prometheus/client_golang v1.23.2
+	github.com/shirou/gopsutil/v4 v4.26.3
 	github.com/spf13/pflag v1.0.10
 	github.com/stretchr/testify v1.11.1
-	github.com/testcontainers/testcontainers-go v0.40.0
-	go.opentelemetry.io/contrib/bridges/otelslog v0.15.0
-	go.opentelemetry.io/contrib/exporters/autoexport v0.67.0
-	go.opentelemetry.io/otel v1.42.0
-	go.opentelemetry.io/otel/log v0.18.0
-	go.opentelemetry.io/otel/metric v1.42.0
-	go.opentelemetry.io/otel/sdk v1.42.0
-	go.opentelemetry.io/otel/sdk/log v0.18.0
-	go.opentelemetry.io/otel/sdk/metric v1.42.0
-	go.opentelemetry.io/otel/trace v1.42.0
-	go.uber.org/multierr v1.11.0
-	golang.org/x/net v0.51.0
-	golang.org/x/sync v0.19.0
-	golang.org/x/term v0.40.0
-	golang.org/x/text v0.34.0
+	github.com/testcontainers/testcontainers-go v0.42.0
+	go.opentelemetry.io/contrib/bridges/otelslog v0.18.0
+	go.opentelemetry.io/contrib/exporters/autoexport v0.68.0
+	go.opentelemetry.io/otel v1.43.0
+	go.opentelemetry.io/otel/log v0.19.0
+	go.opentelemetry.io/otel/metric v1.43.0
+	go.opentelemetry.io/otel/sdk v1.43.0
+	go.opentelemetry.io/otel/sdk/log v0.19.0
+	go.opentelemetry.io/otel/sdk/metric v1.43.0
+	go.opentelemetry.io/otel/trace v1.43.0
+	golang.org/x/net v0.53.0
+	golang.org/x/sync v0.20.0
+	golang.org/x/term v0.42.0
+	golang.org/x/text v0.36.0
 )
 
 require (
@@ -43,7 +42,7 @@ require (
 	github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/STARRY-S/zip v0.2.3 // indirect
-	github.com/andybalholm/brotli v1.2.0 // indirect
+	github.com/andybalholm/brotli v1.2.1 // 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
@@ -62,6 +61,7 @@ require (
 	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-connections 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 v0.10.0 // indirect
@@ -81,31 +81,29 @@ require (
 	github.com/hashicorp/go-memdb v1.3.5 // indirect
 	github.com/hashicorp/golang-lru v1.0.2 // indirect
 	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
-	github.com/klauspost/compress v1.18.4 // indirect
+	github.com/klauspost/compress v1.18.5 // indirect
 	github.com/klauspost/pgzip v1.2.6 // indirect
-	github.com/lufia/plan9stats v0.0.0-20260216142805-b3301c5f2a88 // indirect
+	github.com/lufia/plan9stats v0.0.0-20260330125221-c963978e514e // indirect
 	github.com/magiconair/properties v1.8.10 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
-	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-isatty v0.0.21 // indirect
 	github.com/mikelolasagasti/xz v1.0.1 // indirect
-	github.com/minio/minlz v1.0.1 // indirect
+	github.com/minio/minlz v1.1.0 // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect
 	github.com/moby/go-archive v0.2.0 // indirect
-	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/moby/client v0.4.0 // indirect
+	github.com/moby/patternmatcher v0.6.1 // indirect
 	github.com/moby/sys/sequential v0.6.0 // indirect
 	github.com/moby/sys/user v0.4.0 // indirect
 	github.com/moby/sys/userns v0.1.0 // indirect
 	github.com/moby/term v0.5.2 // indirect
-	github.com/morikuni/aec v1.1.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/nwaples/rardecode/v2 v2.2.2 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.1 // indirect
-	github.com/pierrec/lz4/v4 v4.1.25 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pierrec/lz4/v4 v4.1.26 // 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_golang v1.23.2 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
 	github.com/prometheus/common v0.67.5 // indirect
 	github.com/prometheus/otlptranslator v1.0.0 // indirect
@@ -120,28 +118,28 @@ require (
 	github.com/valyala/fasttemplate v1.2.2 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/contrib/bridges/prometheus v0.67.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.18.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0 // indirect
-	go.opentelemetry.io/otel/exporters/prometheus v0.64.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.18.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.42.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.42.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.9.0 // indirect
-	go.yaml.in/yaml/v2 v2.4.3 // indirect
+	go.opentelemetry.io/contrib/bridges/prometheus v0.68.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.19.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.19.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.43.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.43.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.43.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.43.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.43.0 // indirect
+	go.opentelemetry.io/otel/exporters/prometheus v0.65.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.19.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.43.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.43.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.10.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.4 // indirect
 	go4.org v0.0.0-20260112195520-a5071408f32f // indirect
-	golang.org/x/crypto v0.48.0 // indirect
-	golang.org/x/sys v0.41.0 // indirect
-	golang.org/x/time v0.14.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20260226221140-a57be14db171 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171 // indirect
-	google.golang.org/grpc v1.79.2 // indirect
+	golang.org/x/crypto v0.50.0 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+	golang.org/x/time v0.15.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260406210006-6f92a3bedf2d // indirect
+	google.golang.org/grpc v1.80.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -10,8 +10,8 @@ github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
 github.com/STARRY-S/zip v0.2.3/go.mod h1:lqJ9JdeRipyOQJrYSOtpNAiaesFO6zVDsE8GIGFaoSk=
 github.com/alexliesenfeld/health v0.8.1 h1:wdE3vt+cbJotiR8DGDBZPKHDFoJbAoWEfQTcqrmedUg=
 github.com/alexliesenfeld/health v0.8.1/go.mod h1:TfNP0f+9WQVWMQRzvMUjlws4ceXKEL3WR+6Hp95HUFc=
-github.com/andybalholm/brotli v1.2.0 h1:ukwgCxwYrmACq68yiUqwIWnGY0cTPox/M94sVwToPjQ=
-github.com/andybalholm/brotli v1.2.0/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/andybalholm/brotli v1.2.1 h1:R+f5xP285VArJDRgowrfb9DqL18yVK0gKAW/F+eTWro=
+github.com/andybalholm/brotli v1.2.1/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
 github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
 github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
 github.com/barasher/go-exiftool v1.10.0 h1:f5JY5jc42M7tzR6tbL9508S2IXdIcG9QyieEXNMpIhs=
@@ -30,10 +30,10 @@ github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1x
 github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d h1:ZtA1sedVbEW7EW80Iz2GR3Ye6PwbJAJXjv7D74xG6HU=
-github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d/go.mod h1:NItd7aLkcfOA/dcMXvl8p1u+lQqioRMq/SqDp71Pb/k=
-github.com/chromedp/chromedp v0.14.2 h1:r3b/WtwM50RsBZHMUm9fsNhhzRStTHrKdr2zmwbZSzM=
-github.com/chromedp/chromedp v0.14.2/go.mod h1:rHzAv60xDE7VNy/MYtTUrYreSc0ujt2O1/C3bzctYBo=
+github.com/chromedp/cdproto v0.0.0-20260405000525-47a8ff65b46a h1:Kk4P1W58eAf+OUGtx51cM7CcJokJuBEmOxxwPdHFH4Q=
+github.com/chromedp/cdproto v0.0.0-20260405000525-47a8ff65b46a/go.mod h1:cbyjALe67vDvlvdiG9369P8w5U2w6IshwtyD2f2Tvag=
+github.com/chromedp/chromedp v0.15.1 h1:EJWiPm7BNqDqjYy6U0lTSL5wNH+iNt9GjC3a4gfjNyQ=
+github.com/chromedp/chromedp v0.15.1/go.mod h1:CdTHtUqD/dqaFw/cvFWtTydoEQS44wLBuwbMR9EkOY4=
 github.com/chromedp/sysutil v1.1.0 h1:PUFNv5EcprjqXZD9nJb9b/c9ibAbxiYo4exNWZyipwM=
 github.com/chromedp/sysutil v1.1.0/go.mod h1:WiThHUdltqCNKGc4gaU50XgYjwjYIhKWoHGPTUfWTJ8=
 github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=
@@ -47,8 +47,8 @@ github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7np
 github.com/cpuguy83/dockercfg v0.3.2 h1:DlJTyZGBDlXqUZ2Dk2Q3xHs/FtnooJJVaad2S9GKorA=
 github.com/cpuguy83/dockercfg v0.3.2/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
-github.com/creack/pty v1.1.18 h1:n56/Zwd5o6whRC5PMGretI4IdRLlmBXYNjScPaBgsbY=
-github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
+github.com/creack/pty v1.1.24 h1:bJrF4RRfyJnbTJqzRLHzcGaZK1NeM5kTC9jGgovnR1s=
+github.com/creack/pty v1.1.24/go.mod h1:08sCNb52WyoAwi2QDyzUCTgcvVFhUzewun7wtTfvcwE=
 github.com/cucumber/gherkin/go/v26 v26.2.0 h1:EgIjePLWiPeslwIWmNQ3XHcypPsWAHoMCz/YEBKP4GI=
 github.com/cucumber/gherkin/go/v26 v26.2.0/go.mod h1:t2GAPnB8maCT4lkHL99BDCVNzCh1d7dBhCLt150Nr/0=
 github.com/cucumber/godog v0.15.1 h1:rb/6oHDdvVZKS66hrhpjFQFHjthFSrQBCOI1LwshNTI=
@@ -63,8 +63,6 @@ github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5Qvfr
 github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
 github.com/dlclark/regexp2 v1.11.5 h1:Q/sSnsKerHeCkc/jSTNq1oCm7KiVgUMZRDUoRu0JQZQ=
 github.com/dlclark/regexp2 v1.11.5/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
-github.com/docker/docker v28.5.2+incompatible h1:DBX0Y0zAjZbSrm1uzOkdr1onVghKaftjlSWt4AFexzM=
-github.com/docker/docker v28.5.2+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/docker/go-connections v0.6.0 h1:LlMG9azAe1TqfR7sO+NJttz1gy6KO7VJBh+pMmjSD94=
 github.com/docker/go-connections v0.6.0/go.mod h1:AahvXYshr6JgfUJGdDCs2b5EZG/vmaMAntpSFH5BFKE=
 github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
@@ -100,8 +98,8 @@ github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1
 github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
-github.com/gomarkdown/markdown v0.0.0-20260217112301-37c66b85d6ab h1:VYNivV7P8IRHUam2swVUNkhIdp0LRRFKe4hXNnoZKTc=
-github.com/gomarkdown/markdown v0.0.0-20260217112301-37c66b85d6ab/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
+github.com/gomarkdown/markdown v0.0.0-20260412113850-134a5b2cce7f h1:C5vKBogs/Qf5ID8F8XuRO8SFL+5SH7JMJrAfdLAZ2iA=
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@@ -134,8 +132,8 @@ github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs
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@@ -154,30 +152,32 @@ github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0
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@@ -186,8 +186,6 @@ github.com/moby/sys/userns v0.1.0 h1:tVLXkFOxVu9A64/yh59slHVv9ahO9UIev4JZusOLG/g
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@@ -198,10 +196,8 @@ github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJw
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@@ -219,8 +215,8 @@ github.com/prometheus/procfs v0.20.1/go.mod h1:o9EMBZGRyvDrSPH1RqdxhojkuXstoe4Ul
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@@ -235,8 +231,8 @@ github.com/spf13/pflag v1.0.10/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3A
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@@ -244,8 +240,8 @@ github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o
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@@ -263,90 +259,88 @@ github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo
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-google.golang.org/genproto/googleapis/api v0.0.0-20260226221140-a57be14db171/go.mod h1:M5krXqk4GhBKvB596udGL3UyjL4I1+cTbK0orROM9ng=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171 h1:ggcbiqK8WWh6l1dnltU4BgWGIGo+EVYxCaAPih/zQXQ=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
-google.golang.org/grpc v1.79.2 h1:fRMD94s2tITpyJGtBBn7MkMseNpOZU8ZxgC3MMBaXRU=
-google.golang.org/grpc v1.79.2/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
+gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
+gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
+google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d h1:/aDRtSZJjyLQzm75d+a1wOJaqyKBMvIAfeQmoa3ORiI=
+google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d/go.mod h1:etfGUgejTiadZAUaEP14NP97xi1RGeawqkjDARA/UOs=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260406210006-6f92a3bedf2d h1:wT2n40TBqFY6wiwazVK9/iTWbsQrgk5ZfCSVFLO9LQA=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260406210006-6f92a3bedf2d/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
+google.golang.org/grpc v1.80.0 h1:Xr6m2WmWZLETvUNvIUmeD5OAagMw3FiKmMlTdViWsHM=
+google.golang.org/grpc v1.80.0/go.mod h1:ho/dLnxwi3EDJA4Zghp7k2Ec1+c2jqup0bFkw07bwF4=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
 google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -357,3 +351,5 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.5.2 h1:7koQfIKdy+I8UTetycgUqXWSDwpgv193Ka+qRsmBY8Q=
 gotest.tools/v3 v3.5.2/go.mod h1:LtdLGcnqToBH83WByAAi/wiwSFCArdFIUV/xxN4pcjA=
+pgregory.net/rapid v1.2.0 h1:keKAYRcjm+e1F0oAuU5F5+YPAWcyxNNRK2wud503Gnk=
+pgregory.net/rapid v1.2.0/go.mod h1:PY5XlDGj0+V1FCq0o192FdRhpKHGTRIWBgqjDBTrq04=

package-lock.json

@@ -5,7 +5,7 @@
   "packages": {
     "": {
       "devDependencies": {
-        "prettier": "3.8.1",
+        "prettier": "3.8.2",
         "prettier-plugin-gherkin": "^3.1.3",
         "prettier-plugin-sh": "^0.18.0"
       }
@@ -34,9 +34,9 @@
       }
     },
     "node_modules/@reteps/dockerfmt": {
-      "version": "0.3.6",
-      "resolved": "https://registry.npmjs.org/@reteps/dockerfmt/-/dockerfmt-0.3.6.tgz",
-      "integrity": "sha512-Tb5wIMvBf/nLejTQ61krK644/CEMB/cpiaIFXqGApfGqO3GwcR3qnI0DbmkFVCl2OyEp8LnLX3EkucoL0+tbFg==",
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/@reteps/dockerfmt/-/dockerfmt-0.5.2.tgz",
+      "integrity": "sha512-Hbr7yen4fP5TxGM54ucXa4o5NwWXatJ6Bd9I8gp0PValYbI4Rug2Gu+rVv7K7o/efQc3F5ctqWJz47rYaa8zBw==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -58,9 +58,9 @@
       "license": "MIT"
     },
     "node_modules/prettier": {
-      "version": "3.8.1",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.1.tgz",
-      "integrity": "sha512-UOnG6LftzbdaHZcKoPFtOcCKztrQ57WkHDeRD9t/PTQtmT0NHSeWWepj6pS0z/N7+08BHFDQVUrfmfMRcZwbMg==",
+      "version": "3.8.2",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.2.tgz",
+      "integrity": "sha512-8c3mgTe0ASwWAJK+78dpviD+A8EqhndQPUBpNUIPt6+xWlIigCwfN01lWr9MAede4uqXGTEKeQWTvzb3vjia0Q==",
       "dev": true,
       "license": "MIT",
       "bin": {
@@ -86,13 +86,13 @@
       }
     },
     "node_modules/prettier-plugin-sh": {
-      "version": "0.18.0",
-      "resolved": "https://registry.npmjs.org/prettier-plugin-sh/-/prettier-plugin-sh-0.18.0.tgz",
-      "integrity": "sha512-cW1XL27FOJQ/qGHOW6IHwdCiNWQsAgK+feA8V6+xUTaH0cD3Mh+tFAtBvEEWvuY6hTDzRV943Fzeii+qMOh7nQ==",
+      "version": "0.18.1",
+      "resolved": "https://registry.npmjs.org/prettier-plugin-sh/-/prettier-plugin-sh-0.18.1.tgz",
+      "integrity": "sha512-uZmU22wBMevjh3rmCatNQqiEer2+5KLa0xYCBX6zQQUQkcNzVL+s6FbPKK6ZSUNUbQk6jMAcQHrYPvuL2W6ihQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@reteps/dockerfmt": "^0.3.6",
+        "@reteps/dockerfmt": "^0.5.1",
         "sh-syntax": "^0.5.8"
       },
       "engines": {

package.json

@@ -1,6 +1,6 @@
 {
   "devDependencies": {
-    "prettier": "3.8.1",
+    "prettier": "3.8.2",
     "prettier-plugin-gherkin": "^3.1.3",
     "prettier-plugin-sh": "^0.18.0"
   }

pkg/gotenberg/cmd.go

@@ -62,7 +62,7 @@ func (cmd *Cmd) Start() error {
 		return fmt.Errorf("pipe unix process output: %w", err)
 	}
 
-	cmd.logger.DebugContext(cmd.ctx, fmt.Sprintf("start unix process: %s", strings.Join(cmd.process.Args, " ")))
+	cmd.logger.DebugContext(context.Background(), fmt.Sprintf("start unix process: %s", strings.Join(cmd.process.Args, " ")))
 
 	err = cmd.process.Start()
 	if err != nil {
@@ -109,7 +109,7 @@ func (cmd *Cmd) Exec() (int, error) {
 	case err = <-errChan:
 		errProc := cmd.Kill()
 		if errProc != nil {
-			cmd.logger.ErrorContext(cmd.ctx, errProc.Error())
+			cmd.logger.ErrorContext(context.Background(), errProc.Error())
 		}
 
 		if err == nil {
@@ -124,7 +124,7 @@ func (cmd *Cmd) Exec() (int, error) {
 	case <-cmd.ctx.Done():
 		errProc := cmd.Kill()
 		if errProc != nil {
-			cmd.logger.ErrorContext(cmd.ctx, errProc.Error())
+			cmd.logger.ErrorContext(context.Background(), errProc.Error())
 		}
 
 		return 62, fmt.Errorf("context done: %w", cmd.ctx.Err())
@@ -134,7 +134,7 @@ func (cmd *Cmd) Exec() (int, error) {
 // pipeOutput creates logs entries according to the process stdout and stderr.
 // It does nothing if the logging level is not debug.
 func (cmd *Cmd) pipeOutput() error {
-	if !cmd.logger.Enabled(cmd.ctx, slog.LevelDebug) {
+	if !cmd.logger.Enabled(context.Background(), slog.LevelDebug) {
 		return nil
 	}
 
@@ -155,7 +155,7 @@ func (cmd *Cmd) pipeOutput() error {
 		defer func(reader io.ReadCloser) {
 			err := reader.Close()
 			if err != nil && !strings.Contains(err.Error(), "file already closed") {
-				logger.ErrorContext(cmd.ctx, fmt.Sprintf("close reader: %s", err))
+				logger.ErrorContext(context.Background(), fmt.Sprintf("close reader: %s", err))
 			}
 		}(reader)
 
@@ -163,14 +163,14 @@ func (cmd *Cmd) pipeOutput() error {
 			line, _, err := r.ReadLine()
 			if err != nil {
 				if err != io.EOF && !strings.Contains(err.Error(), "file already closed") {
-					logger.ErrorContext(cmd.ctx, fmt.Sprintf("pipe unix process output error: %s", err))
+					logger.ErrorContext(context.Background(), fmt.Sprintf("pipe unix process output error: %s", err))
 				}
 
 				break
 			}
 
 			if len(line) != 0 {
-				logger.DebugContext(cmd.ctx, string(line))
+				logger.DebugContext(context.Background(), string(line))
 			}
 		}
 	}
@@ -194,13 +194,13 @@ func (cmd *Cmd) Kill() error {
 
 	err := syscall.Kill(-cmd.process.Process.Pid, syscall.SIGKILL)
 	if err == nil {
-		cmd.logger.DebugContext(cmd.ctx, "unix process killed")
+		cmd.logger.DebugContext(context.Background(), "unix process killed")
 		return nil
 	}
 
 	// If the process does not exist anymore, the error is irrelevant.
 	if strings.Contains(err.Error(), "no such process") {
-		cmd.logger.DebugContext(cmd.ctx, "unix process already killed")
+		cmd.logger.DebugContext(context.Background(), "unix process already killed")
 		return nil
 	}
 

pkg/gotenberg/doc.go

@@ -1,7 +1,7 @@
-// Package gotenberg provides most of the logic of the module system.
+// Package gotenberg implements the core module system.
 //
-// caddyserver/caddy, licensed under the Apache License 2.0, has significantly
-// inspired this module system.
+// Significantly inspired by caddyserver/caddy, licensed under the Apache
+// License 2.0.
 //
-// More details are available on https://caddyserver.com/.
+// See https://caddyserver.com/.
 package gotenberg

pkg/gotenberg/filter.go

@@ -12,40 +12,57 @@ import (
 // ErrFiltered happens if a value is filtered by the [FilterDeadline] function.
 var ErrFiltered = errors.New("value filtered")
 
-// FilterDeadline checks if given value is allowed and not denied according to
-// regex patterns. It returns a [context.DeadlineExceeded] if it takes too long
-// to process.
-func FilterDeadline(allowed, denied *regexp2.Regexp, s string, deadline time.Time) error {
-	// FIXME: not ideal to compile everytime, but is there another way to create a clone?
-	if allowed.String() != "" {
-		allow := regexp2.MustCompile(allowed.String(), 0)
-		allow.MatchTimeout = time.Until(deadline)
+// FilterDeadline checks if the given value is allowed and not denied according
+// to regex patterns. The allowed list uses OR semantics (value must match at
+// least one pattern). The denied list uses OR semantics (value is denied if it
+// matches any pattern). It returns a [context.DeadlineExceeded] if it takes
+// too long to process.
+func FilterDeadline(allowed, denied []*regexp2.Regexp, s string, deadline time.Time) error {
+	if len(allowed) > 0 {
+		matched := false
 
-		ok, err := allow.MatchString(s)
-		if err != nil {
-			if time.Now().After(deadline) {
-				return context.DeadlineExceeded
+		for _, pattern := range allowed {
+			// FIXME: not ideal to compile everytime, but is there another way to create a clone?
+			clone := regexp2.MustCompile(pattern.String(), 0)
+			clone.MatchTimeout = time.Until(deadline)
+
+			ok, err := clone.MatchString(s)
+			if err != nil {
+				if time.Now().After(deadline) {
+					return context.DeadlineExceeded
+				}
+
+				return fmt.Errorf("'%s' cannot handle '%s': %w", clone.String(), s, err)
+			}
+
+			if ok {
+				matched = true
+				break
 			}
-			return fmt.Errorf("'%s' cannot handle '%s': %w", allow.String(), s, err)
 		}
-		if !ok {
-			return fmt.Errorf("'%s' does not match the expression from the allowed list: %w", s, ErrFiltered)
+
+		if !matched {
+			return fmt.Errorf("'%s' does not match any expression from the allowed list: %w", s, ErrFiltered)
 		}
 	}
 
-	if denied.String() != "" {
-		deny := regexp2.MustCompile(denied.String(), 0)
-		deny.MatchTimeout = time.Until(deadline)
+	if len(denied) > 0 {
+		for _, pattern := range denied {
+			clone := regexp2.MustCompile(pattern.String(), 0)
+			clone.MatchTimeout = time.Until(deadline)
 
-		ok, err := deny.MatchString(s)
-		if err != nil {
-			if time.Now().After(deadline) {
-				return context.DeadlineExceeded
+			ok, err := clone.MatchString(s)
+			if err != nil {
+				if time.Now().After(deadline) {
+					return context.DeadlineExceeded
+				}
+
+				return fmt.Errorf("'%s' cannot handle '%s': %w", clone.String(), s, err)
+			}
+
+			if ok {
+				return fmt.Errorf("'%s' matches the expression from the denied list: %w", s, ErrFiltered)
 			}
-			return fmt.Errorf("'%s' cannot handle '%s': %w", deny.String(), s, err)
-		}
-		if ok {
-			return fmt.Errorf("'%s' matches the expression from the denied list: %w", s, ErrFiltered)
 		}
 	}
 

pkg/gotenberg/filter_test.go

@@ -12,8 +12,8 @@ import (
 func TestFilterDeadline(t *testing.T) {
 	for _, tc := range []struct {
 		scenario      string
-		allowed       *regexp2.Regexp
-		denied        *regexp2.Regexp
+		allowed       []*regexp2.Regexp
+		denied        []*regexp2.Regexp
 		s             string
 		deadline      time.Time
 		expectError   bool
@@ -21,17 +21,17 @@ func TestFilterDeadline(t *testing.T) {
 	}{
 		{
 			scenario:      "DeadlineExceeded (allowed)",
-			allowed:       regexp2.MustCompile("foo", 0),
-			denied:        regexp2.MustCompile("", 0),
+			allowed:       []*regexp2.Regexp{regexp2.MustCompile("foo", 0)},
+			denied:        nil,
 			s:             "foo",
 			deadline:      time.Now().Add(time.Duration(-1) * time.Hour),
 			expectError:   true,
 			expectedError: context.DeadlineExceeded,
 		},
 		{
-			scenario:      "ErrFiltered (allowed)",
-			allowed:       regexp2.MustCompile("foo", 0),
-			denied:        regexp2.MustCompile("", 0),
+			scenario:      "ErrFiltered (allowed, no match)",
+			allowed:       []*regexp2.Regexp{regexp2.MustCompile("foo", 0)},
+			denied:        nil,
 			s:             "bar",
 			deadline:      time.Now().Add(time.Duration(5) * time.Second),
 			expectError:   true,
@@ -39,8 +39,8 @@ func TestFilterDeadline(t *testing.T) {
 		},
 		{
 			scenario:      "DeadlineExceeded (denied)",
-			allowed:       regexp2.MustCompile("", 0),
-			denied:        regexp2.MustCompile("foo", 0),
+			allowed:       nil,
+			denied:        []*regexp2.Regexp{regexp2.MustCompile("foo", 0)},
 			s:             "foo",
 			deadline:      time.Now().Add(time.Duration(-1) * time.Hour),
 			expectError:   true,
@@ -48,21 +48,55 @@ func TestFilterDeadline(t *testing.T) {
 		},
 		{
 			scenario:      "ErrFiltered (denied)",
-			allowed:       regexp2.MustCompile("", 0),
-			denied:        regexp2.MustCompile("foo", 0),
+			allowed:       nil,
+			denied:        []*regexp2.Regexp{regexp2.MustCompile("foo", 0)},
 			s:             "foo",
 			deadline:      time.Now().Add(time.Duration(5) * time.Second),
 			expectError:   true,
 			expectedError: ErrFiltered,
 		},
 		{
-			scenario:    "success",
-			allowed:     regexp2.MustCompile("", 0),
-			denied:      regexp2.MustCompile("", 0),
+			scenario:    "success (empty lists)",
+			allowed:     nil,
+			denied:      nil,
 			s:           "foo",
 			deadline:    time.Now().Add(time.Duration(5) * time.Second),
 			expectError: false,
 		},
+		{
+			scenario:    "multi-pattern allow list, second matches",
+			allowed:     []*regexp2.Regexp{regexp2.MustCompile("^https://", 0), regexp2.MustCompile("^file:///tmp/", 0)},
+			denied:      nil,
+			s:           "file:///tmp/abc/index.html",
+			deadline:    time.Now().Add(time.Duration(5) * time.Second),
+			expectError: false,
+		},
+		{
+			scenario:      "multi-pattern allow list, none matches",
+			allowed:       []*regexp2.Regexp{regexp2.MustCompile("^https://", 0), regexp2.MustCompile("^ftp://", 0)},
+			denied:        nil,
+			s:             "file:///tmp/abc/index.html",
+			deadline:      time.Now().Add(time.Duration(5) * time.Second),
+			expectError:   true,
+			expectedError: ErrFiltered,
+		},
+		{
+			scenario:      "multi-pattern deny list, second matches",
+			allowed:       nil,
+			denied:        []*regexp2.Regexp{regexp2.MustCompile("^ftp://", 0), regexp2.MustCompile("^file:.*", 0)},
+			s:             "file:///etc/passwd",
+			deadline:      time.Now().Add(time.Duration(5) * time.Second),
+			expectError:   true,
+			expectedError: ErrFiltered,
+		},
+		{
+			scenario:    "https URL passes deny list targeting file://",
+			allowed:     nil,
+			denied:      []*regexp2.Regexp{regexp2.MustCompile("^file:.*", 0)},
+			s:           "https://example.com",
+			deadline:    time.Now().Add(time.Duration(5) * time.Second),
+			expectError: false,
+		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
 			err := FilterDeadline(tc.allowed, tc.denied, tc.s, tc.deadline)

pkg/gotenberg/flags.go

@@ -222,3 +222,32 @@ func (f *ParsedFlags) MustDeprecatedRegexp(deprecated string, newName string) *r
 
 	return f.MustRegexp(newName)
 }
+
+// MustRegexpSlice returns a slice of compiled regular expressions from a
+// string-slice flag given by name. Empty strings are skipped.
+// It panics if an error occurs.
+func (f *ParsedFlags) MustRegexpSlice(name string) []*regexp2.Regexp {
+	vals := f.MustStringSlice(name)
+
+	var regexps []*regexp2.Regexp
+	for _, val := range vals {
+		if val == "" {
+			continue
+		}
+
+		regexps = append(regexps, regexp2.MustCompile(val, 0))
+	}
+
+	return regexps
+}
+
+// MustDeprecatedRegexpSlice returns the slice of compiled regular expressions
+// of a deprecated flag if it was explicitly set or the slice of the new flag.
+// It panics if an error occurs.
+func (f *ParsedFlags) MustDeprecatedRegexpSlice(deprecated string, newName string) []*regexp2.Regexp {
+	if f.Changed(deprecated) {
+		return f.MustRegexpSlice(deprecated)
+	}
+
+	return f.MustRegexpSlice(newName)
+}

pkg/gotenberg/flags_test.go

@@ -6,6 +6,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/dlclark/regexp2"
 	flag "github.com/spf13/pflag"
 )
 
@@ -833,3 +834,120 @@ func TestParsedFlags_MustDeprecatedRegexp(t *testing.T) {
 		})
 	}
 }
+
+func TestParsedFlags_MustRegexpSlice(t *testing.T) {
+	fs := flag.NewFlagSet("tests", flag.ContinueOnError)
+	fs.StringSlice("foo", []string{}, "")
+
+	err := fs.Parse([]string{"--foo=^file:.*", "--foo=^ftp://.*"})
+	if err != nil {
+		t.Fatalf("expected no error but got: %v", err)
+	}
+
+	parsedFlags := ParsedFlags{FlagSet: fs}
+
+	for _, tc := range []struct {
+		scenario    string
+		name        string
+		expectPanic bool
+		expectLen   int
+	}{
+		{
+			scenario:    "success with multiple patterns",
+			name:        "foo",
+			expectPanic: false,
+			expectLen:   2,
+		},
+		{
+			scenario:    "non-existing flag",
+			name:        "bar",
+			expectPanic: true,
+		},
+	} {
+		t.Run(tc.scenario, func(t *testing.T) {
+			if tc.expectPanic {
+				defer func() {
+					if r := recover(); r == nil {
+						t.Fatal("expected panic but got none")
+					}
+				}()
+			}
+
+			if !tc.expectPanic {
+				defer func() {
+					if r := recover(); r != nil {
+						t.Fatalf("expected no panic but got: %v", r)
+					}
+				}()
+			}
+
+			result := parsedFlags.MustRegexpSlice(tc.name)
+
+			if !tc.expectPanic && len(result) != tc.expectLen {
+				t.Errorf("expected %d regexps but got %d", tc.expectLen, len(result))
+			}
+		})
+	}
+
+	// Test empty strings are skipped.
+	fs2 := flag.NewFlagSet("tests2", flag.ContinueOnError)
+	fs2.StringSlice("baz", []string{""}, "")
+
+	err = fs2.Parse([]string{})
+	if err != nil {
+		t.Fatalf("expected no error but got: %v", err)
+	}
+
+	parsedFlags2 := ParsedFlags{FlagSet: fs2}
+	result := parsedFlags2.MustRegexpSlice("baz")
+	if len(result) != 0 {
+		t.Errorf("expected 0 regexps for empty strings but got %d", len(result))
+	}
+}
+
+func TestParsedFlags_MustDeprecatedRegexpSlice(t *testing.T) {
+	for _, tc := range []struct {
+		scenario      string
+		rawFlags      []string
+		expectPattern string
+	}{
+		{
+			scenario:      "deprecated flag value",
+			rawFlags:      []string{"--foo=^file:.*"},
+			expectPattern: "^file:.*",
+		},
+		{
+			scenario:      "non-deprecated flag value",
+			rawFlags:      []string{"--bar=^ftp://.*"},
+			expectPattern: "^ftp://.*",
+		},
+		{
+			scenario:      "deprecated flag value > non-deprecated flag value",
+			rawFlags:      []string{"--foo=^file:.*", "--bar=^ftp://.*"},
+			expectPattern: "^file:.*",
+		},
+	} {
+		t.Run(tc.scenario, func(t *testing.T) {
+			fs := flag.NewFlagSet("tests", flag.ContinueOnError)
+			fs.StringSlice("foo", []string{}, "")
+			fs.StringSlice("bar", []string{}, "")
+
+			parsedFlags := ParsedFlags{FlagSet: fs}
+
+			err := parsedFlags.Parse(tc.rawFlags)
+			if err != nil {
+				t.Fatalf("expected no error but got: %v", err)
+			}
+
+			actual := parsedFlags.MustDeprecatedRegexpSlice("foo", "bar")
+			if len(actual) != 1 {
+				t.Fatalf("expected 1 regexp but got %d", len(actual))
+			}
+			if actual[0].String() != tc.expectPattern {
+				t.Errorf("expected pattern '%s' but got '%s'", tc.expectPattern, actual[0].String())
+			}
+		})
+	}
+
+	_ = regexp2.None // Keep import alive.
+}

pkg/gotenberg/gc.go

@@ -38,7 +38,7 @@ func GarbageCollect(ctx context.Context, logger *slog.Logger, rootPath string, i
 
 		for _, substr := range includeSubstr {
 			if (strings.Contains(info.Name(), substr) || path == substr) && info.ModTime().Before(expirationTime) {
-				err := os.RemoveAll(path)
+				err := os.RemoveAll(path) //nolint:gosec // G122: rootPath is a trusted internal working directory
 				if err != nil {
 					return fmt.Errorf("garbage collect '%s': %w", path, err)
 				}

pkg/gotenberg/gc_test.go

@@ -67,7 +67,7 @@ func TestGarbageCollect(t *testing.T) {
 				}
 			}()
 
-			err := GarbageCollect(context.Background(), slog.New(slog.NewJSONHandler(os.Stdout, nil)), tc.rootPath, tc.includeSubstr, time.Now())
+			err := GarbageCollect(context.Background(), slog.New(slog.DiscardHandler), tc.rootPath, tc.includeSubstr, time.Now())
 
 			if !tc.expectError && err != nil {
 				t.Fatalf("expected no error but got: %v", err)

pkg/gotenberg/internal/log/stdhandler.go

@@ -71,16 +71,17 @@ func NewStdHandler(level slog.Level, format string, fieldsPrefix string, enableG
 		// Configure level encoding based on format and GCP settings.
 		if a.Key == slog.LevelKey {
 			l := a.Value.Any().(slog.Level)
-			if format == textLoggingFormat && isTerminal {
+			switch {
+			case format == textLoggingFormat && isTerminal:
 				if enableGcpFields {
 					a.Value = slog.StringValue(gcpSeverityColorEncoder(l))
 				} else {
 					a.Value = slog.StringValue(levelToColor(l).Add(l.String()))
 				}
-			} else if enableGcpFields && format != textLoggingFormat {
+			case enableGcpFields && format != textLoggingFormat:
 				a.Key = "severity"
 				a.Value = slog.StringValue(gcpSeverity(l))
-			} else {
+			default:
 				a.Value = slog.StringValue(strings.ToLower(l.String()))
 			}
 		}

pkg/gotenberg/internal/otel/doc.go

@@ -1,8 +1,7 @@
 // Package otel gathers initialization utilities for OpenTelemetry
 // instrumentation.
 //
-// This package has been significantly inspired by
-// https://github.com/lucavallin/gotel.
+// Significantly inspired by https://github.com/lucavallin/gotel.
 //
-// See: https://opentelemetry.io/.
+// See https://opentelemetry.io/.
 package otel

pkg/gotenberg/logging.go

@@ -0,0 +1 @@
+package gotenberg

pkg/gotenberg/metrics.go

@@ -0,0 +1,26 @@
+package gotenberg
+
+// Metric represents a unitary metric.
+type Metric struct {
+	// Name is the unique identifier.
+	// Required.
+	Name string
+
+	// Description describes the metric.
+	// Optional.
+	Description string
+
+	// Read returns the current value.
+	// Required.
+	Read func() float64
+}
+
+// MetricsProvider is a module interface which provides a list of [Metric].
+//
+//	func (m *YourModule) Provision(ctx *gotenberg.Context) error {
+//		provider, _ := ctx.Module(new(gotenberg.MetricsProvider))
+//		metrics, _  := provider.(gotenberg.MetricsProvider).Metrics()
+//	}
+type MetricsProvider interface {
+	Metrics() ([]Metric, error)
+}

pkg/gotenberg/mocks.go

@@ -45,14 +45,21 @@ func (mod *DebuggableMock) Debug() map[string]any {
 //
 //nolint:dupl
 type PdfEngineMock struct {
-	MergeMock          func(ctx context.Context, logger *slog.Logger, inputPaths []string, outputPath string) error
-	SplitMock          func(ctx context.Context, logger *slog.Logger, mode SplitMode, inputPath, outputDirPath string) ([]string, error)
-	FlattenMock        func(ctx context.Context, logger *slog.Logger, inputPath string) error
-	ConvertMock        func(ctx context.Context, logger *slog.Logger, formats PdfFormats, inputPath, outputPath string) error
-	ReadMetadataMock   func(ctx context.Context, logger *slog.Logger, inputPath string) (map[string]any, error)
-	WriteMetadataMock  func(ctx context.Context, logger *slog.Logger, metadata map[string]any, inputPath string) error
-	EncryptMock        func(ctx context.Context, logger *slog.Logger, inputPath, userPassword, ownerPassword string) error
-	AddAttachmentsMock func(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error
+	MergeMock              func(ctx context.Context, logger *slog.Logger, inputPaths []string, outputPath string) error
+	SplitMock              func(ctx context.Context, logger *slog.Logger, mode SplitMode, inputPath, outputDirPath string) ([]string, error)
+	FlattenMock            func(ctx context.Context, logger *slog.Logger, inputPath string) error
+	ConvertMock            func(ctx context.Context, logger *slog.Logger, formats PdfFormats, inputPath, outputPath string) error
+	ReadMetadataMock       func(ctx context.Context, logger *slog.Logger, inputPath string) (map[string]any, error)
+	PageCountMock          func(ctx context.Context, logger *slog.Logger, inputPath string) (int, error)
+	WriteMetadataMock      func(ctx context.Context, logger *slog.Logger, metadata map[string]any, inputPath string) error
+	ReadBookmarksMock      func(ctx context.Context, logger *slog.Logger, inputPath string) ([]Bookmark, error)
+	EncryptMock            func(ctx context.Context, logger *slog.Logger, inputPath, userPassword, ownerPassword string) error
+	EmbedFilesMock         func(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error
+	EmbedFilesMetadataMock func(ctx context.Context, logger *slog.Logger, metadata map[string]map[string]string, inputPath string) error
+	WriteBookmarksMock     func(ctx context.Context, logger *slog.Logger, inputPath string, bookmarks []Bookmark) error
+	WatermarkMock          func(ctx context.Context, logger *slog.Logger, inputPath string, stamp Stamp) error
+	StampMock              func(ctx context.Context, logger *slog.Logger, inputPath string, stamp Stamp) error
+	RotateMock             func(ctx context.Context, logger *slog.Logger, inputPath string, angle int, pages string) error
 }
 
 func (engine *PdfEngineMock) Merge(ctx context.Context, logger *slog.Logger, inputPaths []string, outputPath string) error {
@@ -75,16 +82,44 @@ func (engine *PdfEngineMock) ReadMetadata(ctx context.Context, logger *slog.Logg
 	return engine.ReadMetadataMock(ctx, logger, inputPath)
 }
 
+func (engine *PdfEngineMock) PageCount(ctx context.Context, logger *slog.Logger, inputPath string) (int, error) {
+	return engine.PageCountMock(ctx, logger, inputPath)
+}
+
 func (engine *PdfEngineMock) WriteMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]any, inputPath string) error {
 	return engine.WriteMetadataMock(ctx, logger, metadata, inputPath)
 }
 
+func (engine *PdfEngineMock) ReadBookmarks(ctx context.Context, logger *slog.Logger, inputPath string) ([]Bookmark, error) {
+	return engine.ReadBookmarksMock(ctx, logger, inputPath)
+}
+
 func (engine *PdfEngineMock) Encrypt(ctx context.Context, logger *slog.Logger, inputPath, userPassword, ownerPassword string) error {
 	return engine.EncryptMock(ctx, logger, inputPath, userPassword, ownerPassword)
 }
 
-func (engine *PdfEngineMock) AddAttachments(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error {
-	return engine.AddAttachmentsMock(ctx, logger, filePaths, inputPath)
+func (engine *PdfEngineMock) EmbedFiles(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error {
+	return engine.EmbedFilesMock(ctx, logger, filePaths, inputPath)
+}
+
+func (engine *PdfEngineMock) EmbedFilesMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]map[string]string, inputPath string) error {
+	return engine.EmbedFilesMetadataMock(ctx, logger, metadata, inputPath)
+}
+
+func (engine *PdfEngineMock) WriteBookmarks(ctx context.Context, logger *slog.Logger, inputPath string, bookmarks []Bookmark) error {
+	return engine.WriteBookmarksMock(ctx, logger, inputPath, bookmarks)
+}
+
+func (engine *PdfEngineMock) Watermark(ctx context.Context, logger *slog.Logger, inputPath string, stamp Stamp) error {
+	return engine.WatermarkMock(ctx, logger, inputPath, stamp)
+}
+
+func (engine *PdfEngineMock) Stamp(ctx context.Context, logger *slog.Logger, inputPath string, stamp Stamp) error {
+	return engine.StampMock(ctx, logger, inputPath, stamp)
+}
+
+func (engine *PdfEngineMock) Rotate(ctx context.Context, logger *slog.Logger, inputPath string, angle int, pages string) error {
+	return engine.RotateMock(ctx, logger, inputPath, angle, pages)
 }
 
 // PdfEngineProviderMock is a mock for the [PdfEngineProvider] interface.
@@ -122,8 +157,8 @@ type ProcessSupervisorMock struct {
 	HealthyMock          func() bool
 	RunMock              func(ctx context.Context, logger *slog.Logger, task func() error) error
 	ReqQueueSizeMock     func() int64
-	ActiveTasksCountMock func() int64
 	RestartsCountMock    func() int64
+	ActiveTasksCountMock func() int64
 }
 
 func (s *ProcessSupervisorMock) Launch() error {
@@ -146,12 +181,21 @@ func (s *ProcessSupervisorMock) ReqQueueSize() int64 {
 	return s.ReqQueueSizeMock()
 }
 
+func (s *ProcessSupervisorMock) RestartsCount() int64 {
+	return s.RestartsCountMock()
+}
+
 func (s *ProcessSupervisorMock) ActiveTasksCount() int64 {
 	return s.ActiveTasksCountMock()
 }
 
-func (s *ProcessSupervisorMock) RestartsCount() int64 {
-	return s.RestartsCountMock()
+// MetricsProviderMock is a mock for the [MetricsProvider] interface.
+type MetricsProviderMock struct {
+	MetricsMock func() ([]Metric, error)
+}
+
+func (provider *MetricsProviderMock) Metrics() ([]Metric, error) {
+	return provider.MetricsMock()
 }
 
 // MkdirAllMock is a mock for the [MkdirAll] interface.
@@ -180,6 +224,7 @@ var (
 	_ PdfEngineProvider = (*PdfEngineProviderMock)(nil)
 	_ Process           = (*ProcessMock)(nil)
 	_ ProcessSupervisor = (*ProcessSupervisorMock)(nil)
+	_ MetricsProvider   = (*MetricsProviderMock)(nil)
 	_ MkdirAll          = (*MkdirAllMock)(nil)
 	_ PathRename        = (*PathRenameMock)(nil)
 )

pkg/gotenberg/outbound.go

@@ -0,0 +1,325 @@
+package gotenberg
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"net/netip"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/dlclark/regexp2"
+)
+
+// ErrNonPublicIP indicates that an outbound URL targets an IP address that
+// is not reachable on the public internet. This covers loopback, RFC1918
+// private, link-local, unspecified, multicast, and IPv6 unique-local
+// (fc00::/7) addresses, as well as their IPv4-mapped IPv6 wrappers (for
+// example [::ffff:127.0.0.1]).
+var ErrNonPublicIP = errors.New("non-public IP")
+
+// netipResolver is the subset of [net.Resolver] used by
+// [ResolveAndCheckPublic]. Defining it as an interface allows tests to
+// substitute a stub resolver.
+type netipResolver interface {
+	LookupNetIP(ctx context.Context, network, host string) ([]netip.Addr, error)
+}
+
+// outboundResolver is the resolver used by [ResolveAndCheckPublic]. It is a
+// package-level variable so that tests can substitute a stub resolver.
+var outboundResolver netipResolver = net.DefaultResolver
+
+// outboundDialer is the underlying dialer used by [secureDialContext]. It is
+// a package-level variable so that tests can replace it.
+var outboundDialer = &net.Dialer{
+	Timeout:   30 * time.Second,
+	KeepAlive: 30 * time.Second,
+}
+
+// IsPublicIP reports whether addr is reachable on the public internet. It
+// returns false for loopback, private (RFC1918), link-local, unspecified,
+// multicast, and unique-local addresses. IPv4-mapped IPv6 addresses are
+// unmapped before evaluation so that [::ffff:127.0.0.1] is correctly
+// identified as loopback.
+func IsPublicIP(addr netip.Addr) bool {
+	if !addr.IsValid() {
+		return false
+	}
+	addr = addr.Unmap()
+	switch {
+	case addr.IsLoopback(),
+		addr.IsPrivate(),
+		addr.IsLinkLocalUnicast(),
+		addr.IsLinkLocalMulticast(),
+		addr.IsMulticast(),
+		addr.IsUnspecified(),
+		addr.IsInterfaceLocalMulticast():
+		return false
+	}
+	return true
+}
+
+// ResolveAndCheckPublic resolves host and returns the resolved addresses,
+// or an error if any resolved address fails [IsPublicIP]. If host is itself
+// an IP literal, it is checked directly without performing a DNS lookup.
+// The returned slice can be used to pin a subsequent dial to a specific IP
+// and prevent DNS rebinding between this validation and the connect.
+func ResolveAndCheckPublic(ctx context.Context, host string) ([]netip.Addr, error) {
+	if host == "" {
+		return nil, errors.New("empty host")
+	}
+	if addr, err := netip.ParseAddr(host); err == nil {
+		if !IsPublicIP(addr) {
+			return nil, fmt.Errorf("%q: %w", addr, ErrNonPublicIP)
+		}
+		return []netip.Addr{addr}, nil
+	}
+	addrs, err := outboundResolver.LookupNetIP(ctx, "ip", host)
+	if err != nil {
+		return nil, fmt.Errorf("resolve %q: %w", host, err)
+	}
+	if len(addrs) == 0 {
+		return nil, fmt.Errorf("resolve %q: no addresses returned", host)
+	}
+	for _, a := range addrs {
+		if !IsPublicIP(a) {
+			return nil, fmt.Errorf("%q resolves to non-public address %q: %w", host, a, ErrNonPublicIP)
+		}
+	}
+	return addrs, nil
+}
+
+// outboundDecision is the result of validating an outbound URL. It is
+// stashed in the request context by [outboundRoundTripper] so that
+// [secureDialContext] can either bypass the IP check (allow-list match) or
+// pin the dial to the IPs that were resolved at validation time.
+type outboundDecision struct {
+	// bypass is true when an allow-list pattern matched the URL. In that
+	// case the operator has explicitly opted into the destination and the
+	// dial should proceed without an IP check.
+	bypass bool
+
+	// pinned holds the IPs resolved by [ResolveAndCheckPublic] for the URL
+	// host. The dial should be pinned to one of these to prevent DNS
+	// rebinding between validation and connect.
+	pinned []netip.Addr
+}
+
+// outboundDecisionKey is the context key under which an [outboundDecision]
+// is stored.
+type outboundDecisionKey struct{}
+
+// httpLikeScheme reports whether scheme is one of http, https, ws, or wss.
+// Only these schemes go through the IP-based public-address check; data,
+// blob, file, and other schemes are filtered by the regex layer alone.
+func httpLikeScheme(scheme string) bool {
+	switch scheme {
+	case "http", "https", "ws", "wss":
+		return true
+	}
+	return false
+}
+
+// decideOutbound parses rawURL, runs the regex allow/deny lists against the
+// normalized form, and (when no allow-list match) resolves the host and
+// rejects any non-public address. It returns the resulting
+// [outboundDecision] which the caller can stash in a context for the dial.
+func decideOutbound(ctx context.Context, rawURL string, allowList, denyList []*regexp2.Regexp, deadline time.Time) (outboundDecision, error) {
+	parsed, err := url.Parse(rawURL)
+	if err != nil {
+		return outboundDecision{}, fmt.Errorf("parse URL %q: %w", rawURL, ErrFiltered)
+	}
+	parsed.Scheme = strings.ToLower(parsed.Scheme)
+	parsed.Host = strings.ToLower(parsed.Host)
+	normalized := parsed.String()
+
+	allowMatched := false
+	if len(allowList) > 0 {
+		for _, pattern := range allowList {
+			clone := regexp2.MustCompile(pattern.String(), 0)
+			clone.MatchTimeout = time.Until(deadline)
+
+			ok, err := clone.MatchString(normalized)
+			if err != nil {
+				if time.Now().After(deadline) {
+					return outboundDecision{}, context.DeadlineExceeded
+				}
+				return outboundDecision{}, fmt.Errorf("'%s' cannot handle '%s': %w", clone.String(), normalized, err)
+			}
+
+			if ok {
+				allowMatched = true
+				break
+			}
+		}
+
+		if !allowMatched {
+			return outboundDecision{}, fmt.Errorf("'%s' does not match any expression from the allowed list: %w", normalized, ErrFiltered)
+		}
+	}
+
+	for _, pattern := range denyList {
+		clone := regexp2.MustCompile(pattern.String(), 0)
+		clone.MatchTimeout = time.Until(deadline)
+
+		ok, err := clone.MatchString(normalized)
+		if err != nil {
+			if time.Now().After(deadline) {
+				return outboundDecision{}, context.DeadlineExceeded
+			}
+			return outboundDecision{}, fmt.Errorf("'%s' cannot handle '%s': %w", clone.String(), normalized, err)
+		}
+
+		if ok {
+			return outboundDecision{}, fmt.Errorf("'%s' matches the expression from the denied list: %w", normalized, ErrFiltered)
+		}
+	}
+
+	if allowMatched {
+		return outboundDecision{bypass: true}, nil
+	}
+
+	if !httpLikeScheme(parsed.Scheme) {
+		return outboundDecision{}, nil
+	}
+
+	host := parsed.Hostname()
+	if host == "" {
+		return outboundDecision{}, fmt.Errorf("URL %q has no host: %w", rawURL, ErrFiltered)
+	}
+
+	addrs, err := ResolveAndCheckPublic(ctx, host)
+	if err != nil {
+		if errors.Is(err, ErrNonPublicIP) {
+			return outboundDecision{}, fmt.Errorf("'%s' targets a non-public address: %w", normalized, ErrFiltered)
+		}
+		return outboundDecision{}, fmt.Errorf("validate '%s' host: %w", normalized, err)
+	}
+
+	return outboundDecision{pinned: addrs}, nil
+}
+
+// FilterOutboundURL validates that rawURL is acceptable for an outbound
+// request from Gotenberg. It is the URL-aware replacement for
+// [FilterDeadline] and should be preferred for any new code that filters a
+// URL before issuing or instructing an outbound request.
+//
+// The function:
+//
+//  1. Parses rawURL with [net/url] and lowercases the scheme and host. This
+//     prevents case-variant bypasses such as HTTP://127.0.0.1 from evading
+//     case-sensitive deny-list regexes.
+//  2. Applies allowList and denyList against the normalized form using the
+//     same OR semantics as [FilterDeadline].
+//  3. When no allow-list entry explicitly matched and the scheme is one of
+//     http, https, ws, or wss, resolves the host and verifies every
+//     resolved address with [IsPublicIP]. This blocks loopback, private,
+//     link-local, and other internal targets even when the regex layer
+//     does not cover the textual form (for example IPv4-mapped IPv6 like
+//     [::ffff:127.0.0.1], or hostnames that resolve to a private address).
+//
+// An allow-list match bypasses the IP check, allowing operators to opt
+// into specific internal destinations via --*-allow-list flags. The
+// deny-list always applies and cannot be bypassed by an allow-list match.
+func FilterOutboundURL(ctx context.Context, rawURL string, allowList, denyList []*regexp2.Regexp, deadline time.Time) error {
+	_, err := decideOutbound(ctx, rawURL, allowList, denyList, deadline)
+	return err
+}
+
+// outboundRoundTripper is an [http.RoundTripper] that validates each request
+// URL via [decideOutbound] and stashes the resulting [outboundDecision] in
+// the request context so that [secureDialContext] can pin the dial or
+// bypass the IP check as appropriate. Because the http.Client invokes
+// RoundTrip again for each redirect hop, this also re-validates redirect
+// targets without a separate CheckRedirect.
+type outboundRoundTripper struct {
+	base      http.RoundTripper
+	allowList []*regexp2.Regexp
+	denyList  []*regexp2.Regexp
+}
+
+// RoundTrip validates req.URL and delegates to the base transport.
+func (rt *outboundRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
+	deadline, ok := req.Context().Deadline()
+	if !ok {
+		deadline = time.Now().Add(30 * time.Second)
+	}
+
+	decision, err := decideOutbound(req.Context(), req.URL.String(), rt.allowList, rt.denyList, deadline)
+	if err != nil {
+		return nil, err
+	}
+
+	ctx := context.WithValue(req.Context(), outboundDecisionKey{}, decision)
+	return rt.base.RoundTrip(req.WithContext(ctx))
+}
+
+// NewOutboundHttpClient returns an [http.Client] that validates every
+// outbound request URL via the same logic as [FilterOutboundURL] and pins
+// the resulting dial to a resolved public IP. An allow-list match
+// (operator opt-in to a specific destination) bypasses the IP check.
+//
+// The client re-validates redirect targets automatically because the
+// underlying [http.Client] invokes the wrapping [http.RoundTripper] once
+// per hop. This closes the redirect-based SSRF bypass that affects raw
+// [http.Client] usage when no CheckRedirect is set.
+func NewOutboundHttpClient(timeout time.Duration, allowList, denyList []*regexp2.Regexp) *http.Client {
+	base := http.DefaultTransport.(*http.Transport).Clone()
+	base.DialContext = secureDialContext
+	return &http.Client{
+		Timeout: timeout,
+		Transport: &outboundRoundTripper{
+			base:      base,
+			allowList: allowList,
+			denyList:  denyList,
+		},
+	}
+}
+
+// secureDialContext consumes the [outboundDecision] stashed in ctx by
+// [outboundRoundTripper]. When the decision is to bypass (allow-list
+// match), it dials directly. When the decision contains pinned IPs, it
+// dials each in turn until one connects. When no decision is present (the
+// dialer was used outside of [outboundRoundTripper]), it falls back to
+// resolving and checking the destination itself.
+func secureDialContext(ctx context.Context, network, addr string) (net.Conn, error) {
+	host, port, err := net.SplitHostPort(addr)
+	if err != nil {
+		return nil, fmt.Errorf("split host:port %q: %w", addr, err)
+	}
+
+	if decision, ok := ctx.Value(outboundDecisionKey{}).(outboundDecision); ok {
+		if decision.bypass {
+			return outboundDialer.DialContext(ctx, network, addr)
+		}
+		if len(decision.pinned) > 0 {
+			return dialPinned(ctx, network, decision.pinned, port)
+		}
+	}
+
+	addrs, err := ResolveAndCheckPublic(ctx, host)
+	if err != nil {
+		return nil, err
+	}
+	return dialPinned(ctx, network, addrs, port)
+}
+
+// dialPinned dials each addr in turn until one connects, returning the
+// first successful connection or the last error.
+func dialPinned(ctx context.Context, network string, addrs []netip.Addr, port string) (net.Conn, error) {
+	var lastErr error
+	for _, a := range addrs {
+		conn, err := outboundDialer.DialContext(ctx, network, net.JoinHostPort(a.String(), port))
+		if err == nil {
+			return conn, nil
+		}
+		lastErr = err
+	}
+	if lastErr == nil {
+		return nil, errors.New("no addresses to dial")
+	}
+	return nil, lastErr
+}

pkg/gotenberg/outbound_test.go

@@ -0,0 +1,308 @@
+package gotenberg
+
+import (
+	"context"
+	"errors"
+	"net/netip"
+	"testing"
+	"time"
+
+	"github.com/dlclark/regexp2"
+)
+
+func TestIsPublicIP(t *testing.T) {
+	for _, tc := range []struct {
+		addr   string
+		public bool
+	}{
+		// Public.
+		{"1.1.1.1", true},
+		{"8.8.8.8", true},
+		{"2606:4700:4700::1111", true},
+
+		// Loopback.
+		{"127.0.0.1", false},
+		{"127.255.255.254", false},
+		{"::1", false},
+
+		// IPv4-mapped IPv6 (Issue 2).
+		{"::ffff:127.0.0.1", false},
+		{"::ffff:10.0.0.1", false},
+		{"::ffff:169.254.169.254", false},
+
+		// RFC1918.
+		{"10.0.0.1", false},
+		{"172.16.0.1", false},
+		{"172.31.255.254", false},
+		{"192.168.1.1", false},
+
+		// Link-local.
+		{"169.254.169.254", false},
+		{"fe80::1", false},
+
+		// Unique-local.
+		{"fc00::1", false},
+		{"fd12:3456:789a::1", false},
+
+		// Unspecified.
+		{"0.0.0.0", false},
+		{"::", false},
+
+		// Multicast.
+		{"224.0.0.1", false},
+		{"ff02::1", false},
+	} {
+		t.Run(tc.addr, func(t *testing.T) {
+			addr, err := netip.ParseAddr(tc.addr)
+			if err != nil {
+				t.Fatalf("parse %q: %v", tc.addr, err)
+			}
+			if got := IsPublicIP(addr); got != tc.public {
+				t.Fatalf("IsPublicIP(%q) = %v, want %v", tc.addr, got, tc.public)
+			}
+		})
+	}
+}
+
+// stubResolver lets tests fake DNS lookups in [ResolveAndCheckPublic].
+type stubResolver struct {
+	lookup func(host string) ([]netip.Addr, error)
+}
+
+func (s stubResolver) LookupNetIP(_ context.Context, _, host string) ([]netip.Addr, error) {
+	return s.lookup(host)
+}
+
+func withStubResolver(t *testing.T, fn func(host string) ([]netip.Addr, error)) {
+	t.Helper()
+	prev := outboundResolver
+	outboundResolver = stubResolver{lookup: fn}
+	t.Cleanup(func() { outboundResolver = prev })
+}
+
+func mustAddrs(t *testing.T, ss ...string) []netip.Addr {
+	t.Helper()
+	out := make([]netip.Addr, 0, len(ss))
+	for _, s := range ss {
+		a, err := netip.ParseAddr(s)
+		if err != nil {
+			t.Fatalf("parse %q: %v", s, err)
+		}
+		out = append(out, a)
+	}
+	return out
+}
+
+func TestFilterOutboundURL(t *testing.T) {
+	defaultDeny := []*regexp2.Regexp{
+		regexp2.MustCompile(`^https?://(10\.|172\.(1[6-9]|2[0-9]|3[01])\.|192\.168\.|169\.254\.|0\.0\.0\.0|127\.|localhost|\[::1\]|\[fd)`, 0),
+	}
+	chromiumDeny := []*regexp2.Regexp{
+		regexp2.MustCompile(`^file:(?!//\/tmp/).*`, 0),
+	}
+
+	for _, tc := range []struct {
+		scenario     string
+		rawURL       string
+		allow        []*regexp2.Regexp
+		deny         []*regexp2.Regexp
+		stub         func(host string) ([]netip.Addr, error)
+		expectErr    bool
+		expectIs     error
+		expectErrMsg string
+	}{
+		{
+			scenario:  "public IP literal passes",
+			rawURL:    "https://1.1.1.1/",
+			deny:      defaultDeny,
+			expectErr: false,
+		},
+		{
+			scenario:  "loopback IP literal blocked by default deny-list",
+			rawURL:    "http://127.0.0.1:8080/",
+			deny:      defaultDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "Issue 4: uppercase scheme normalized then blocked by deny-list",
+			rawURL:    "HTTP://127.0.0.1:8080/",
+			deny:      defaultDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "Issue 2: IPv4-mapped IPv6 evades deny-list but blocked by IP check",
+			rawURL:    "http://[::ffff:127.0.0.1]:8080/page.pdf",
+			deny:      defaultDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "Issue 2: IPv4-mapped IPv6 to RFC1918 blocked by IP check",
+			rawURL:    "http://[::ffff:10.0.0.1]/",
+			deny:      defaultDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "hostname resolving to public IP passes",
+			rawURL:    "https://example.com/",
+			deny:      defaultDeny,
+			stub:      func(string) ([]netip.Addr, error) { return mustAddrs(t, "93.184.216.34"), nil },
+			expectErr: false,
+		},
+		{
+			scenario:  "hostname resolving to loopback blocked",
+			rawURL:    "https://rebind.example/",
+			deny:      defaultDeny,
+			stub:      func(string) ([]netip.Addr, error) { return mustAddrs(t, "127.0.0.1"), nil },
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "hostname resolving to mixed public+private blocked",
+			rawURL:    "https://mixed.example/",
+			deny:      defaultDeny,
+			stub:      func(string) ([]netip.Addr, error) { return mustAddrs(t, "1.1.1.1", "10.0.0.1"), nil },
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "allow-list match bypasses IP check",
+			rawURL:    "http://internal.service/api",
+			allow:     []*regexp2.Regexp{regexp2.MustCompile(`^http://internal\.service`, 0)},
+			deny:      defaultDeny,
+			stub:      func(string) ([]netip.Addr, error) { return mustAddrs(t, "10.0.0.1"), nil },
+			expectErr: false,
+		},
+		{
+			scenario:  "deny-list still wins over allow-list match",
+			rawURL:    "http://internal.service/api",
+			allow:     []*regexp2.Regexp{regexp2.MustCompile(`^http://internal`, 0)},
+			deny:      []*regexp2.Regexp{regexp2.MustCompile(`/api$`, 0)},
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "allow-list non-empty and no match rejects",
+			rawURL:    "https://other.example/",
+			allow:     []*regexp2.Regexp{regexp2.MustCompile(`^https://allowed\.example`, 0)},
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "file:// allowed under tmp passes Chromium default",
+			rawURL:    "file:///tmp/index.html",
+			deny:      chromiumDeny,
+			expectErr: false,
+		},
+		{
+			scenario:  "file:// outside tmp blocked by Chromium default",
+			rawURL:    "file:///etc/passwd",
+			deny:      chromiumDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "Issue 1: Chromium default does not block http to public host (regex layer)",
+			rawURL:    "https://example.com/",
+			deny:      chromiumDeny,
+			stub:      func(string) ([]netip.Addr, error) { return mustAddrs(t, "93.184.216.34"), nil },
+			expectErr: false,
+		},
+		{
+			scenario:  "Issue 1: Chromium default now blocks http to loopback via IP layer",
+			rawURL:    "http://127.0.0.1:3000/health",
+			deny:      chromiumDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "Issue 1: Chromium default now blocks cloud metadata via IP layer",
+			rawURL:    "http://169.254.169.254/latest/meta-data/",
+			deny:      chromiumDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "data: URL passes (non-network scheme)",
+			rawURL:    "data:text/html;base64,PGgxPmhpPC9oMT4=",
+			expectErr: false,
+		},
+		{
+			scenario:  "URL with no host rejected",
+			rawURL:    "http:///path",
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+		{
+			scenario:  "userinfo cannot mask host",
+			rawURL:    "http://example.com@127.0.0.1/",
+			deny:      defaultDeny,
+			expectErr: true,
+			expectIs:  ErrFiltered,
+		},
+	} {
+		t.Run(tc.scenario, func(t *testing.T) {
+			if tc.stub != nil {
+				withStubResolver(t, tc.stub)
+			} else {
+				// Default: any DNS lookup in a non-stubbed test is a bug.
+				withStubResolver(t, func(host string) ([]netip.Addr, error) {
+					t.Fatalf("unexpected DNS lookup for %q", host)
+					return nil, nil
+				})
+			}
+
+			err := FilterOutboundURL(context.Background(), tc.rawURL, tc.allow, tc.deny, time.Now().Add(5*time.Second))
+
+			if tc.expectErr && err == nil {
+				t.Fatalf("expected error, got nil")
+			}
+			if !tc.expectErr && err != nil {
+				t.Fatalf("expected no error, got: %v", err)
+			}
+			if tc.expectIs != nil && !errors.Is(err, tc.expectIs) {
+				t.Fatalf("expected error to wrap %v, got: %v", tc.expectIs, err)
+			}
+		})
+	}
+}
+
+func TestResolveAndCheckPublic_IPLiteralLoopback(t *testing.T) {
+	withStubResolver(t, func(host string) ([]netip.Addr, error) {
+		t.Fatalf("unexpected DNS lookup for %q", host)
+		return nil, nil
+	})
+
+	_, err := ResolveAndCheckPublic(context.Background(), "127.0.0.1")
+	if !errors.Is(err, ErrNonPublicIP) {
+		t.Fatalf("expected ErrNonPublicIP, got: %v", err)
+	}
+}
+
+func TestResolveAndCheckPublic_HostResolvesToLoopback(t *testing.T) {
+	withStubResolver(t, func(host string) ([]netip.Addr, error) {
+		return mustAddrs(t, "127.0.0.1"), nil
+	})
+
+	_, err := ResolveAndCheckPublic(context.Background(), "rebind.example")
+	if !errors.Is(err, ErrNonPublicIP) {
+		t.Fatalf("expected ErrNonPublicIP, got: %v", err)
+	}
+}
+
+func TestResolveAndCheckPublic_HostResolvesToPublic(t *testing.T) {
+	withStubResolver(t, func(host string) ([]netip.Addr, error) {
+		return mustAddrs(t, "1.1.1.1"), nil
+	})
+
+	addrs, err := ResolveAndCheckPublic(context.Background(), "example.com")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if len(addrs) != 1 || addrs[0].String() != "1.1.1.1" {
+		t.Fatalf("expected [1.1.1.1], got: %v", addrs)
+	}
+}

pkg/gotenberg/pdfengine.go

@@ -27,6 +27,14 @@ var (
 	// ErrPdfEncryptionNotSupported is returned when encryption
 	// is not supported by the PDF engine.
 	ErrPdfEncryptionNotSupported = errors.New("encryption not supported")
+
+	// ErrPdfStampSourceNotSupported is returned when a stamp source type
+	// is not supported by the PDF engine.
+	ErrPdfStampSourceNotSupported = errors.New("stamp source not supported")
+
+	// ErrPdfRotateAngleNotSupported is returned when the rotation angle is
+	// not supported.
+	ErrPdfRotateAngleNotSupported = errors.New("rotation angle not supported")
 )
 
 // PdfEngineInvalidArgsError represents an error returned by a PDF engine when
@@ -48,6 +56,33 @@ func NewPdfEngineInvalidArgs(engine, msg string) error {
 	return &PdfEngineInvalidArgsError{engine, msg}
 }
 
+const (
+	// StampSourceText represents a text-based stamp source.
+	StampSourceText string = "text"
+
+	// StampSourceImage represents an image-based stamp source.
+	StampSourceImage string = "image"
+
+	// StampSourcePDF represents a PDF-based stamp source.
+	StampSourcePDF string = "pdf"
+)
+
+// Stamp gathers the data required to apply a watermark or stamp to a PDF.
+type Stamp struct {
+	// Source is one of "text", "image", or "pdf".
+	Source string
+
+	// Expression is the text content (for text source) or file path (for
+	// image/pdf source).
+	Expression string
+
+	// Pages is the optional page range to apply the stamp to.
+	Pages string
+
+	// Options holds engine-specific styling options.
+	Options map[string]string
+}
+
 const (
 	// SplitModeIntervals represents a mode where a PDF is split at specific
 	// intervals.
@@ -108,6 +143,14 @@ type PdfFormats struct {
 	PdfUa bool
 }
 
+// Bookmark represents a node in the PDF document's outline
+// (table of contents).
+type Bookmark struct {
+	Title    string     `json:"title"`
+	Page     int        `json:"page"`
+	Children []Bookmark `json:"children,omitempty"`
+}
+
 // PdfEngine provides an interface for operations on PDFs. Implementations
 // can use various tools like PDFtk, or implement functionality directly in
 // Go.
@@ -134,18 +177,45 @@ type PdfEngine interface {
 	// ReadMetadata extracts the metadata of a given PDF file.
 	ReadMetadata(ctx context.Context, logger *slog.Logger, inputPath string) (map[string]any, error)
 
+	// PageCount returns the number of pages in a PDF file.
+	PageCount(ctx context.Context, logger *slog.Logger, inputPath string) (int, error)
+
 	// WriteMetadata writes the metadata into a given PDF file.
 	WriteMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]any, inputPath string) error
 
+	// ReadBookmarks reads the document outline (bookmarks) of a PDF file.
+	ReadBookmarks(ctx context.Context, logger *slog.Logger, inputPath string) ([]Bookmark, error)
+
+	// WriteBookmarks adds a document outline (bookmarks) to a PDF file.
+	// The bookmarks parameter represents the hierarchical tree of the outline.
+	WriteBookmarks(ctx context.Context, logger *slog.Logger, inputPath string, bookmarks []Bookmark) error
+
 	// Encrypt adds password protection to a PDF file.
 	// The userPassword is required to open the document.
 	// The ownerPassword provides full access to the document.
 	// If the ownerPassword is empty, it defaults to the userPassword.
 	Encrypt(ctx context.Context, logger *slog.Logger, inputPath, userPassword, ownerPassword string) error
 
-	// AddAttachments adds attachments into a PDF. All files are attached as
-	// file attachments without modifying the main PDF content.
-	AddAttachments(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error
+	// EmbedFiles embeds files into a PDF. All files are embedded as file attachments
+	// without modifying the main PDF content.
+	// TODO: attachments instead? Rename the route?
+	EmbedFiles(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error
+
+	// EmbedFilesMetadata sets metadata (such as MIME type and AFRelationship)
+	// on already-embedded files in a PDF. The metadata map is keyed by
+	// filename, with each value being a map of property names to values
+	// (e.g., "mimeType" and "relationship").
+	EmbedFilesMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]map[string]string, inputPath string) error
+
+	// Watermark applies a watermark (behind page content) to a PDF file.
+	Watermark(ctx context.Context, logger *slog.Logger, inputPath string, stamp Stamp) error
+
+	// Stamp applies a stamp (on top of page content) to a PDF file.
+	Stamp(ctx context.Context, logger *slog.Logger, inputPath string, stamp Stamp) error
+
+	// Rotate rotates pages of a PDF file by the given angle (90, 180, 270).
+	// If pages is empty, all pages are rotated.
+	Rotate(ctx context.Context, logger *slog.Logger, inputPath string, angle int, pages string) error
 }
 
 // PdfEngineProvider offers an interface to instantiate a [PdfEngine].

pkg/gotenberg/semconv/doc.go

@@ -1,7 +1,5 @@
-// Package semconv is a copy/paste of utilities that are currently not exposed
-// in the OpenTelemery Go SDK.
+// Package semconv contains utilities not yet exposed in the OpenTelemetry Go
+// SDK. Remove this package once an official API exists.
 //
-// This package MUST be removed once an "official" API is provided.
-//
-// See: https://github.com/open-telemetry/opentelemetry-go-contrib/issues/4580.
+// See https://github.com/open-telemetry/opentelemetry-go-contrib/issues/4580.
 package semconv

pkg/gotenberg/supervisor.go

@@ -7,6 +7,7 @@ import (
 	"log/slog"
 	"sync"
 	"sync/atomic"
+	"time"
 )
 
 // ErrProcessAlreadyRestarting happens if the [ProcessSupervisor] is trying
@@ -53,9 +54,9 @@ type ProcessSupervisor interface {
 
 	// Healthy checks and returns the health status of the managed [Process].
 	//
-	// If the process has not been started or is restarting, it is considered
-	// healthy and true is returned. Otherwise, it returns the health status of
-	// the actual process.
+	// A non-started process is considered healthy (startup is deferred until
+	// the first request). Returns false if the process is currently restarting
+	// or is reported unhealthy by the underlying [Process].
 	Healthy() bool
 
 	// Run executes a provided task while managing the state of the [Process].
@@ -70,44 +71,53 @@ type ProcessSupervisor interface {
 	// ReqQueueSize returns the current size of the request queue.
 	ReqQueueSize() int64
 
-	// ActiveTasksCount returns the current number of active tasks.
-	ActiveTasksCount() int64
-
 	// RestartsCount returns the current number of restart.
 	RestartsCount() int64
+
+	// ActiveTasksCount returns the current number of active tasks.
+	ActiveTasksCount() int64
 }
 
 type processSupervisor struct {
-	logger          *slog.Logger
-	process         Process
-	maxReqLimit     int64
-	maxQueueSize    int64
-	maxConcurrency  int64
-	semaphore       chan struct{}
-	firstStart      atomic.Bool
-	firstStartOnce  sync.Once
-	firstStartErr   error
-	reqCounter      atomic.Int64
-	reqQueueSize    atomic.Int64
-	restartsCounter atomic.Int64
-	isRestarting    atomic.Bool
-	activeTasks     atomic.Int64
-	restartMutex    sync.Mutex
+	logger         *slog.Logger
+	process        Process
+	maxReqLimit    int64
+	maxQueueSize   int64
+	maxConcurrency int64
+	semaphore      chan struct{}
+	firstStart     atomic.Bool
+	firstStartOnce sync.Once
+	// firstStartErr stores the error from the first Launch attempt executed
+	// via firstStartOnce. Subsequent callers that enter the !firstStart block
+	// need to observe this value after the Once has completed, without
+	// re-executing the closure.
+	firstStartErr       error
+	reqCounter          atomic.Int64
+	reqQueueSize        atomic.Int64
+	restartsCounter     atomic.Int64
+	isRestarting        atomic.Bool
+	activeTasks         atomic.Int64
+	restartMutex        sync.Mutex
+	idleShutdownTimeout time.Duration
+	lastActivity        atomic.Int64  // unix nano timestamp of last completed task
+	idleMu              sync.Mutex    // protects idleStopChan
+	idleStopChan        chan struct{} // signal to stop the idle ticker goroutine
 }
 
 // NewProcessSupervisor initializes a new [ProcessSupervisor].
-func NewProcessSupervisor(logger *slog.Logger, process Process, maxReqLimit, maxQueueSize, maxConcurrency int64) ProcessSupervisor {
+func NewProcessSupervisor(logger *slog.Logger, process Process, maxReqLimit, maxQueueSize, maxConcurrency int64, idleShutdownTimeout time.Duration) ProcessSupervisor {
 	if maxConcurrency < 1 {
 		maxConcurrency = 1
 	}
 
 	b := &processSupervisor{
-		logger:         logger,
-		process:        process,
-		semaphore:      make(chan struct{}, maxConcurrency),
-		maxReqLimit:    maxReqLimit,
-		maxQueueSize:   maxQueueSize,
-		maxConcurrency: maxConcurrency,
+		logger:              logger,
+		process:             process,
+		semaphore:           make(chan struct{}, maxConcurrency),
+		maxReqLimit:         maxReqLimit,
+		maxQueueSize:        maxQueueSize,
+		maxConcurrency:      maxConcurrency,
+		idleShutdownTimeout: idleShutdownTimeout,
 	}
 	b.reqCounter.Store(0)
 	b.reqQueueSize.Store(0)
@@ -126,6 +136,12 @@ func (s *processSupervisor) Launch() error {
 	}
 
 	s.firstStart.Store(true)
+
+	if s.idleShutdownTimeout > 0 {
+		s.lastActivity.Store(time.Now().UnixNano())
+		s.startIdleTicker()
+	}
+
 	s.logger.DebugContext(context.Background(), "process successfully started")
 
 	return nil
@@ -133,6 +149,9 @@ func (s *processSupervisor) Launch() error {
 
 func (s *processSupervisor) Shutdown() error {
 	s.logger.DebugContext(context.Background(), "shutdown process")
+
+	s.stopIdleTicker()
+
 	err := s.process.Stop(s.logger)
 	if err != nil {
 		return fmt.Errorf("shutdown process: %w", err)
@@ -148,8 +167,9 @@ func (s *processSupervisor) restart() error {
 
 	err := s.Shutdown()
 	if err != nil {
-		// No big deal? Chances are it's already stopped.
-		s.logger.DebugContext(context.Background(), fmt.Sprintf("stop process before restart: %s", err))
+		// Not necessarily critical — chances are the process is already stopped,
+		// but worth flagging in case it indicates a real issue.
+		s.logger.WarnContext(context.Background(), fmt.Sprintf("stop process before restart: %s", err))
 	}
 
 	err = s.Launch()
@@ -166,117 +186,84 @@ func (s *processSupervisor) restart() error {
 
 func (s *processSupervisor) Healthy() bool {
 	if !s.firstStart.Load() {
-		// A non-started process is always healthy.
+		// A non-started process is considered healthy: Gotenberg defers
+		// process startup until the first request to keep resource usage low.
+		// Reporting unhealthy here would cause container orchestrators to
+		// restart the pod before any request arrives.
 		return true
 	}
 
 	if s.isRestarting.Load() {
-		// A restarting process is always healthy.
-		return true
+		// A restarting process is not yet healthy — this gives load balancers
+		// honest information so they can avoid routing traffic to this node.
+		return false
 	}
 
 	return s.process.Healthy(s.logger)
 }
 
 func (s *processSupervisor) Run(ctx context.Context, logger *slog.Logger, task func() error) error {
-	// A user reported a potential issue:
-	//
-	// "Although the counting operation is atomic, nothing prevent 2 concurrent
-	// goroutines to retrieve the same 'currentQueueSize' and to compare its
-	// value against the max limit. Then, resulting queue size would be 1 above
-	// the allowed limit."
-	//
-	// However, he was unable to actually trigger this issue, even when sending
-	// a lot of requests.
-	//
-	// For now, the best option is to consider this issue to be unlikely to
-	// happen, and keep the code as it is because it is more readable this way.
-	//
-	// See https://github.com/gotenberg/gotenberg/issues/951.
-	currentQueueSize := s.reqQueueSize.Load()
-	if s.maxQueueSize > 0 && currentQueueSize >= s.maxQueueSize {
-		return ErrMaximumQueueSizeExceeded
+	// Atomically check and increment the queue size to avoid the TOCTOU race
+	// originally reported in https://github.com/gotenberg/gotenberg/issues/951.
+	for {
+		current := s.reqQueueSize.Load()
+		if s.maxQueueSize > 0 && current >= s.maxQueueSize {
+			return ErrMaximumQueueSizeExceeded
+		}
+		if s.reqQueueSize.CompareAndSwap(current, current+1) {
+			break
+		}
 	}
 
-	s.reqQueueSize.Add(1)
+	// Decrement when Run() returns, regardless of which path is taken
+	// (context timeout, task completion, error, etc.). This ensures the
+	// request is counted as "in the queue" for the entire duration of Run(),
+	// preventing new requests from entering while one is being processed.
+	// See https://github.com/gotenberg/gotenberg/issues/1502.
+	defer s.reqQueueSize.Add(-1)
 
 	for {
 		err := func() error {
-			select {
-			case s.semaphore <- struct{}{}:
-				logger.DebugContext(ctx, "process lock acquired")
-
-				// If a restart drain is in progress, release the slot
-				// immediately so the drain can acquire it instead.
-				if s.isRestarting.Load() {
-					<-s.semaphore
-					return ErrProcessAlreadyRestarting
-				}
-
-				s.reqQueueSize.Add(-1)
-				s.reqCounter.Add(1)
-				s.activeTasks.Add(1)
-				releaseSemaphore := true
-
-				defer func() {
-					s.activeTasks.Add(-1)
-					if releaseSemaphore {
-						logger.DebugContext(ctx, "process lock released")
-						<-s.semaphore
-					}
-				}()
-
-				if !s.firstStart.Load() {
-					s.firstStartOnce.Do(func() {
-						s.firstStartErr = s.runWithDeadline(ctx, func() error {
-							return s.Launch()
-						})
-					})
-					if s.firstStartErr != nil {
-						return fmt.Errorf("process first start: %w", s.firstStartErr)
-					}
-				}
-
-				if !s.Healthy() {
-					s.logger.DebugContext(ctx, "process is unhealthy, cannot handle task, restarting...")
-					err := s.doRestart(ctx)
-					if err != nil {
-						return fmt.Errorf("process restart before task: %w", err)
-					}
-				}
-
-				err := s.runWithDeadline(ctx, task)
-
-				if s.maxReqLimit > 0 && s.reqCounter.Load() >= s.maxReqLimit {
-					// Only one goroutine should trigger the restart.
-					if s.restartMutex.TryLock() {
-						s.logger.DebugContext(ctx, "max request limit reached, restarting eagerly...")
-						releaseSemaphore = false
-
-						go func() {
-							restartErr := s.doRestartLocked(context.Background())
-							s.restartMutex.Unlock()
-							if restartErr != nil {
-								s.logger.ErrorContext(context.Background(), fmt.Sprintf("process restart after task: %v", restartErr))
-							}
-							logger.DebugContext(context.Background(), "process lock released")
-							<-s.semaphore
-						}()
-					}
-				}
-
-				// Note: no error wrapping because it leaks on Chromium console exceptions output.
+			if err := s.acquireSlot(ctx, logger); err != nil {
 				return err
-			case <-ctx.Done():
-				logger.DebugContext(ctx, "failed to acquire process lock before deadline")
-				s.reqQueueSize.Add(-1)
-
-				return fmt.Errorf("acquire process lock: %w", ctx.Err())
 			}
+
+			s.reqCounter.Add(1)
+			s.activeTasks.Add(1)
+			semaphoreOwned := true
+
+			defer func() {
+				s.activeTasks.Add(-1)
+				if s.idleShutdownTimeout > 0 {
+					s.lastActivity.Store(time.Now().UnixNano())
+				}
+				if semaphoreOwned {
+					logger.DebugContext(ctx, "process lock released")
+					<-s.semaphore
+				}
+			}()
+
+			if err := s.ensureStarted(ctx); err != nil {
+				return err
+			}
+
+			if err := s.ensureHealthy(ctx); err != nil {
+				return err
+			}
+
+			err := s.runWithDeadline(ctx, task)
+
+			if s.maybeRestartAfterTask(logger) {
+				semaphoreOwned = false
+			}
+
+			// Note: no error wrapping because it leaks on Chromium console exceptions output.
+			return err
 		}()
 
 		if errors.Is(err, ErrProcessAlreadyRestarting) {
 			logger.DebugContext(ctx, "process is already restarting, trying to acquire process lock again...")
+			time.Sleep(10 * time.Millisecond)
 			continue
 		}
 
@@ -285,6 +272,174 @@ func (s *processSupervisor) Run(ctx context.Context, logger *slog.Logger, task f
 	}
 }
 
+// startIdleTicker starts a background goroutine that periodically checks
+// whether the process has been idle long enough to shut down.
+func (s *processSupervisor) startIdleTicker() {
+	stopChan := make(chan struct{})
+
+	s.idleMu.Lock()
+	s.idleStopChan = stopChan
+	s.idleMu.Unlock()
+
+	go func() {
+		ticker := time.NewTicker(s.idleShutdownTimeout)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ticker.C:
+				s.maybeIdleShutdown()
+			case <-stopChan:
+				return
+			}
+		}
+	}()
+}
+
+// stopIdleTicker signals the idle ticker goroutine to exit, if one is running.
+func (s *processSupervisor) stopIdleTicker() {
+	s.idleMu.Lock()
+	defer s.idleMu.Unlock()
+
+	if s.idleStopChan != nil {
+		close(s.idleStopChan)
+		s.idleStopChan = nil
+	}
+}
+
+// maybeIdleShutdown stops the process if it has been idle for longer than
+// the configured timeout. It is safe to call concurrently with Run and
+// restart.
+func (s *processSupervisor) maybeIdleShutdown() {
+	if !s.firstStart.Load() || s.isRestarting.Load() {
+		return
+	}
+
+	if s.activeTasks.Load() > 0 || s.reqQueueSize.Load() > 0 {
+		return
+	}
+
+	lastNano := s.lastActivity.Load()
+	if lastNano == 0 || time.Since(time.Unix(0, lastNano)) < s.idleShutdownTimeout {
+		return
+	}
+
+	if !s.restartMutex.TryLock() {
+		return
+	}
+	defer s.restartMutex.Unlock()
+
+	// Double-check after acquiring the lock.
+	if s.activeTasks.Load() > 0 || s.reqQueueSize.Load() > 0 {
+		return
+	}
+
+	s.logger.DebugContext(context.Background(), "idle shutdown timeout reached, stopping process")
+
+	// Stop the ticker — it will be restarted on the next Launch().
+	s.stopIdleTicker()
+
+	err := s.process.Stop(s.logger)
+	if err != nil {
+		s.logger.WarnContext(context.Background(), fmt.Sprintf("idle shutdown: %s", err))
+		return
+	}
+
+	// Reset state so ensureStarted() re-launches on next request.
+	s.firstStart.Store(false)
+	s.firstStartOnce = sync.Once{}
+	s.firstStartErr = nil
+	s.reqCounter.Store(0)
+
+	s.logger.DebugContext(context.Background(), "process stopped due to idle timeout")
+}
+
+// acquireSlot attempts to acquire a semaphore slot, yielding it back if a
+// restart drain is in progress.
+func (s *processSupervisor) acquireSlot(ctx context.Context, logger *slog.Logger) error {
+	select {
+	case s.semaphore <- struct{}{}:
+		// If a restart drain is in progress, release the slot
+		// immediately so the drain can acquire it instead.
+		if s.isRestarting.Load() {
+			<-s.semaphore
+			return ErrProcessAlreadyRestarting
+		}
+
+		logger.DebugContext(ctx, "process lock acquired")
+
+		return nil
+	case <-ctx.Done():
+		logger.DebugContext(ctx, "failed to acquire process lock before deadline")
+
+		return fmt.Errorf("acquire process lock: %w", ctx.Err())
+	}
+}
+
+// ensureStarted performs a one-time lazy launch of the process on its first
+// use. Subsequent calls are no-ops.
+func (s *processSupervisor) ensureStarted(ctx context.Context) error {
+	if s.firstStart.Load() {
+		return nil
+	}
+
+	s.firstStartOnce.Do(func() {
+		s.firstStartErr = s.runWithDeadline(ctx, func() error {
+			return s.Launch()
+		})
+	})
+
+	if s.firstStartErr != nil {
+		return fmt.Errorf("process first start: %w", s.firstStartErr)
+	}
+
+	return nil
+}
+
+// ensureHealthy checks the underlying process health and triggers a
+// synchronous restart if the process is unhealthy. Skips the check if a
+// restart is already in progress.
+func (s *processSupervisor) ensureHealthy(ctx context.Context) error {
+	if s.isRestarting.Load() || s.process.Healthy(s.logger) {
+		return nil
+	}
+
+	s.logger.DebugContext(context.Background(), "process is unhealthy, cannot handle task, restarting...")
+
+	if err := s.doRestart(ctx); err != nil {
+		return fmt.Errorf("process restart before task: %w", err)
+	}
+
+	return nil
+}
+
+// maybeRestartAfterTask checks if the maximum request limit has been reached
+// and, if so, triggers an asynchronous restart. If a restart is initiated, it
+// takes ownership of the caller's semaphore slot (the caller must not release
+// it). Returns true if ownership was taken.
+func (s *processSupervisor) maybeRestartAfterTask(logger *slog.Logger) bool {
+	if s.maxReqLimit <= 0 || s.reqCounter.Load() < s.maxReqLimit {
+		return false
+	}
+
+	if !s.restartMutex.TryLock() {
+		return false
+	}
+
+	s.logger.DebugContext(context.Background(), "max request limit reached, restarting eagerly...")
+
+	go func() {
+		restartErr := s.doRestartLocked(context.Background())
+		s.restartMutex.Unlock()
+		if restartErr != nil {
+			s.logger.ErrorContext(context.Background(), fmt.Sprintf("process restart after task: %v", restartErr))
+		}
+		logger.DebugContext(context.Background(), "process lock released")
+		<-s.semaphore
+	}()
+
+	return true
+}
+
 // doRestart coordinates a process restart, draining all active concurrent
 // tasks before stopping and restarting the process.
 func (s *processSupervisor) doRestart(ctx context.Context) error {
@@ -346,14 +501,14 @@ func (s *processSupervisor) ReqQueueSize() int64 {
 	return s.reqQueueSize.Load()
 }
 
-func (s *processSupervisor) ActiveTasksCount() int64 {
-	return s.activeTasks.Load()
-}
-
 func (s *processSupervisor) RestartsCount() int64 {
 	return s.restartsCounter.Load()
 }
 
+func (s *processSupervisor) ActiveTasksCount() int64 {
+	return s.activeTasks.Load()
+}
+
 // Interface guards.
 var (
 	_ ProcessSupervisor = (*processSupervisor)(nil)

pkg/gotenberg/supervisor_test.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"errors"
 	"log/slog"
-	"os"
 	"sync"
 	"sync/atomic"
 	"testing"
@@ -38,7 +37,7 @@ func TestProcessSupervisor_Launch(t *testing.T) {
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
-			logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+			logger := slog.New(slog.DiscardHandler)
 
 			process := &ProcessMock{
 				StartMock: func(logger *slog.Logger) error {
@@ -46,7 +45,7 @@ func TestProcessSupervisor_Launch(t *testing.T) {
 				},
 			}
 
-			ps := NewProcessSupervisor(logger, process, 5, 0, 1).(*processSupervisor)
+			ps := NewProcessSupervisor(logger, process, 5, 0, 1, 0).(*processSupervisor)
 			if tc.firstStartSet {
 				ps.firstStart.Store(true)
 			}
@@ -86,7 +85,7 @@ func TestProcessSupervisor_Shutdown(t *testing.T) {
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
-			logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+			logger := slog.New(slog.DiscardHandler)
 
 			process := &ProcessMock{
 				StopMock: func(logger *slog.Logger) error {
@@ -94,7 +93,7 @@ func TestProcessSupervisor_Shutdown(t *testing.T) {
 				},
 			}
 
-			ps := NewProcessSupervisor(logger, process, 5, 0, 1)
+			ps := NewProcessSupervisor(logger, process, 5, 0, 1, 0)
 			err := ps.Shutdown()
 
 			if !tc.expectError && err != nil {
@@ -135,7 +134,7 @@ func TestProcessSupervisor_restart(t *testing.T) {
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
-			logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+			logger := slog.New(slog.DiscardHandler)
 
 			process := &ProcessMock{
 				StartMock: func(logger *slog.Logger) error {
@@ -146,7 +145,7 @@ func TestProcessSupervisor_restart(t *testing.T) {
 				},
 			}
 
-			ps := NewProcessSupervisor(logger, process, 5, 0, 1).(*processSupervisor)
+			ps := NewProcessSupervisor(logger, process, 5, 0, 1, 0).(*processSupervisor)
 
 			err := ps.restart()
 
@@ -170,15 +169,15 @@ func TestProcessSupervisor_Healthy(t *testing.T) {
 		expectHealthy       bool
 	}{
 		{
-			scenario:         "non-started process is always healthy",
+			scenario:         "non-started process is healthy",
 			initiallyStarted: false,
 			expectHealthy:    true,
 		},
 		{
-			scenario:            "restarting process is always healthy",
+			scenario:            "restarting process is not healthy",
 			initiallyStarted:    true,
 			initiallyRestarting: true,
-			expectHealthy:       true,
+			expectHealthy:       false,
 		},
 		{
 			scenario:         "process reports as healthy",
@@ -194,7 +193,7 @@ func TestProcessSupervisor_Healthy(t *testing.T) {
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
-			logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+			logger := slog.New(slog.DiscardHandler)
 
 			process := &ProcessMock{
 				HealthyMock: func(logger *slog.Logger) bool {
@@ -202,7 +201,7 @@ func TestProcessSupervisor_Healthy(t *testing.T) {
 				},
 			}
 
-			ps := NewProcessSupervisor(logger, process, 5, 0, 1).(*processSupervisor)
+			ps := NewProcessSupervisor(logger, process, 5, 0, 1, 0).(*processSupervisor)
 			if tc.initiallyStarted {
 				ps.firstStart.Store(true)
 			}
@@ -365,7 +364,7 @@ func TestProcessSupervisor_Run(t *testing.T) {
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
-			logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+			logger := slog.New(slog.DiscardHandler)
 
 			var startCalls, healthyCalls, stopCalls atomic.Int64
 			startCalls.Store(0)
@@ -387,7 +386,7 @@ func TestProcessSupervisor_Run(t *testing.T) {
 				},
 			}
 
-			ps := NewProcessSupervisor(logger, process, tc.maxReqLimit, tc.maxQueueSize, 1).(*processSupervisor)
+			ps := NewProcessSupervisor(logger, process, tc.maxReqLimit, tc.maxQueueSize, 1, 0).(*processSupervisor)
 			if tc.initiallyStarted {
 				ps.firstStart.Store(true)
 			}
@@ -471,7 +470,7 @@ func TestProcessSupervisor_runWithDeadline(t *testing.T) {
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
-			ps := NewProcessSupervisor(slog.New(slog.NewJSONHandler(os.Stdout, nil)), new(ProcessMock), 0, 0, 1).(*processSupervisor)
+			ps := NewProcessSupervisor(slog.New(slog.DiscardHandler), new(ProcessMock), 0, 0, 1, 0).(*processSupervisor)
 
 			ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
 			if tc.ctxDone {
@@ -496,7 +495,7 @@ func TestProcessSupervisor_runWithDeadline(t *testing.T) {
 }
 
 func TestProcessSupervisor_ReqQueueSize(t *testing.T) {
-	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+	logger := slog.New(slog.DiscardHandler)
 	process := &ProcessMock{
 		StartMock: func(logger *slog.Logger) error {
 			return nil
@@ -505,7 +504,7 @@ func TestProcessSupervisor_ReqQueueSize(t *testing.T) {
 			return true
 		},
 	}
-	ps := NewProcessSupervisor(logger, process, 0, 0, 1).(*processSupervisor)
+	ps := NewProcessSupervisor(logger, process, 0, 0, 1, 0).(*processSupervisor)
 
 	// Simulating a lock.
 	ps.semaphore <- struct{}{}
@@ -552,6 +551,111 @@ func TestProcessSupervisor_ReqQueueSize(t *testing.T) {
 	}
 }
 
+func TestProcessSupervisor_QueueSizeCAS(t *testing.T) {
+	logger := slog.New(slog.DiscardHandler)
+
+	process := &ProcessMock{
+		StartMock: func(logger *slog.Logger) error {
+			return nil
+		},
+		HealthyMock: func(logger *slog.Logger) bool {
+			return true
+		},
+	}
+
+	maxQueueSize := int64(50)
+	// maxConcurrency=1 so all goroutines block on the semaphore, exercising queue logic.
+	ps := NewProcessSupervisor(logger, process, 0, maxQueueSize, 1, 0).(*processSupervisor)
+
+	// Simulating a lock so that all goroutines queue up.
+	ps.semaphore <- struct{}{}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	goroutines := 100
+	var wg sync.WaitGroup
+	var exceeded atomic.Int64
+
+	for range goroutines {
+		wg.Go(func() {
+			err := ps.Run(ctx, logger, func() error {
+				return nil
+			})
+			if err != nil {
+				if errors.Is(err, ErrMaximumQueueSizeExceeded) {
+					exceeded.Add(1)
+				}
+			}
+		})
+	}
+
+	// Wait a bit for goroutines to queue up.
+	time.Sleep(50 * time.Millisecond)
+
+	currentQueue := ps.ReqQueueSize()
+	if currentQueue > maxQueueSize {
+		t.Fatalf("queue size %d exceeded max %d", currentQueue, maxQueueSize)
+	}
+
+	cancel()
+	wg.Wait()
+
+	if exceeded.Load() < int64(goroutines)-maxQueueSize {
+		t.Errorf("expected at least %d rejections, got %d", goroutines-int(maxQueueSize), exceeded.Load())
+	}
+}
+
+func TestProcessSupervisor_QueueSizeIncludesActiveTasks(t *testing.T) {
+	logger := slog.New(slog.DiscardHandler)
+
+	process := &ProcessMock{
+		StartMock: func(logger *slog.Logger) error {
+			return nil
+		},
+		HealthyMock: func(logger *slog.Logger) bool {
+			return true
+		},
+	}
+
+	// maxQueueSize=1, maxConcurrency=1: only one request at a time.
+	ps := NewProcessSupervisor(logger, process, 0, 1, 1, 0)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	taskStarted := make(chan struct{})
+	taskDone := make(chan struct{})
+
+	// Start a long-running task that holds the slot.
+	var wg sync.WaitGroup
+	wg.Go(func() {
+		err := ps.Run(ctx, logger, func() error {
+			close(taskStarted)
+			<-taskDone
+			return nil
+		})
+		if err != nil {
+			t.Errorf("first task: unexpected error: %v", err)
+		}
+	})
+
+	// Wait for the first task to be running.
+	<-taskStarted
+
+	// A second request should be rejected immediately because the queue
+	// slot is still held by the active task.
+	err := ps.Run(ctx, logger, func() error {
+		return nil
+	})
+	if !errors.Is(err, ErrMaximumQueueSizeExceeded) {
+		t.Fatalf("expected ErrMaximumQueueSizeExceeded but got: %v", err)
+	}
+
+	close(taskDone)
+	wg.Wait()
+}
+
 func TestProcessSupervisor_RestartsCount(t *testing.T) {
 	for _, tc := range []struct {
 		scenario              string
@@ -593,7 +697,7 @@ func TestProcessSupervisor_RestartsCount(t *testing.T) {
 		},
 	} {
 		t.Run(tc.scenario, func(t *testing.T) {
-			logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+			logger := slog.New(slog.DiscardHandler)
 
 			process := &ProcessMock{
 				StartMock: func(logger *slog.Logger) error {
@@ -604,7 +708,7 @@ func TestProcessSupervisor_RestartsCount(t *testing.T) {
 				},
 			}
 
-			ps := NewProcessSupervisor(logger, process, 0, 0, 1).(*processSupervisor)
+			ps := NewProcessSupervisor(logger, process, 0, 0, 1, 0).(*processSupervisor)
 			ps.restartsCounter.Store(tc.initialRestartsCount)
 
 			for i := 0; i < tc.restartAttempts; i++ {
@@ -620,7 +724,7 @@ func TestProcessSupervisor_RestartsCount(t *testing.T) {
 }
 
 func TestProcessSupervisor_ConcurrentRun(t *testing.T) {
-	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+	logger := slog.New(slog.DiscardHandler)
 
 	var startCalls atomic.Int64
 	process := &ProcessMock{
@@ -637,7 +741,7 @@ func TestProcessSupervisor_ConcurrentRun(t *testing.T) {
 	}
 
 	maxConcurrency := int64(3)
-	ps := NewProcessSupervisor(logger, process, 0, 0, maxConcurrency).(*processSupervisor)
+	ps := NewProcessSupervisor(logger, process, 0, 0, maxConcurrency, 0).(*processSupervisor)
 
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 	defer cancel()
@@ -684,7 +788,7 @@ func TestProcessSupervisor_ConcurrentRun(t *testing.T) {
 }
 
 func TestProcessSupervisor_RestartDrainsAllSlots(t *testing.T) {
-	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+	logger := slog.New(slog.DiscardHandler)
 
 	process := &ProcessMock{
 		StartMock: func(logger *slog.Logger) error {
@@ -699,7 +803,7 @@ func TestProcessSupervisor_RestartDrainsAllSlots(t *testing.T) {
 	}
 
 	maxConcurrency := int64(3)
-	ps := NewProcessSupervisor(logger, process, 3, 0, maxConcurrency).(*processSupervisor)
+	ps := NewProcessSupervisor(logger, process, 3, 0, maxConcurrency, 0).(*processSupervisor)
 	ps.firstStart.Store(true)
 
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
@@ -737,3 +841,103 @@ func TestProcessSupervisor_RestartDrainsAllSlots(t *testing.T) {
 		t.Fatalf("expected 1 restart, got %d", ps.RestartsCount())
 	}
 }
+
+func TestProcessSupervisor_IdleShutdown(t *testing.T) {
+	logger := slog.New(slog.DiscardHandler)
+
+	var stopCalls atomic.Int64
+	process := &ProcessMock{
+		StartMock: func(logger *slog.Logger) error {
+			return nil
+		},
+		StopMock: func(logger *slog.Logger) error {
+			stopCalls.Add(1)
+			return nil
+		},
+		HealthyMock: func(logger *slog.Logger) bool {
+			return true
+		},
+	}
+
+	idleTimeout := 50 * time.Millisecond
+	ps := NewProcessSupervisor(logger, process, 0, 0, 1, idleTimeout).(*processSupervisor)
+
+	ctx := context.Background()
+	err := ps.Run(ctx, logger, func() error {
+		return nil
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	// Wait for idle shutdown to fire.
+	deadline := time.After(2 * time.Second)
+	for ps.firstStart.Load() {
+		select {
+		case <-deadline:
+			t.Fatal("timed out waiting for idle shutdown")
+		default:
+			time.Sleep(10 * time.Millisecond)
+		}
+	}
+
+	if stopCalls.Load() < 1 {
+		t.Fatal("expected process to be stopped via idle shutdown")
+	}
+
+	// Verify re-launch on next request.
+	err = ps.Run(ctx, logger, func() error {
+		return nil
+	})
+	if err != nil {
+		t.Fatalf("unexpected error on re-launch: %v", err)
+	}
+
+	if !ps.firstStart.Load() {
+		t.Fatal("expected process to be re-launched after idle shutdown")
+	}
+}
+
+func TestProcessSupervisor_IdleShutdownSkippedWhenActive(t *testing.T) {
+	logger := slog.New(slog.DiscardHandler)
+
+	var stopCalls atomic.Int64
+	taskRunning := make(chan struct{})
+	taskDone := make(chan struct{})
+
+	process := &ProcessMock{
+		StartMock: func(logger *slog.Logger) error {
+			return nil
+		},
+		StopMock: func(logger *slog.Logger) error {
+			stopCalls.Add(1)
+			return nil
+		},
+		HealthyMock: func(logger *slog.Logger) bool {
+			return true
+		},
+	}
+
+	idleTimeout := 50 * time.Millisecond
+	ps := NewProcessSupervisor(logger, process, 0, 0, 1, idleTimeout)
+
+	ctx := context.Background()
+	go func() {
+		_ = ps.Run(ctx, logger, func() error {
+			close(taskRunning)
+			<-taskDone
+			return nil
+		})
+	}()
+
+	<-taskRunning
+
+	// Wait longer than the idle timeout while a task is active.
+	time.Sleep(idleTimeout * 3)
+
+	if stopCalls.Load() > 0 {
+		t.Fatal("idle shutdown should not fire while a task is active")
+	}
+
+	close(taskDone)
+}

pkg/gotenberg/telemetry.go

@@ -11,7 +11,6 @@ import (
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/metric"
 	"go.opentelemetry.io/otel/trace"
-	"go.uber.org/multierr"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg/internal/log"
 	internalotel "github.com/gotenberg/gotenberg/v8/pkg/gotenberg/internal/otel"
@@ -55,13 +54,13 @@ func (cfg TelemetryConfig) Validate() error {
 	var err error
 
 	if cfg.ServiceName == "" {
-		err = multierr.Append(err,
+		err = errors.Join(err,
 			errors.New("service name must not be empty"),
 		)
 	}
 
 	if cfg.ServiceVersion == "" {
-		err = multierr.Append(err,
+		err = errors.Join(err,
 			errors.New("service version must not be empty"),
 		)
 	}
@@ -70,7 +69,7 @@ func (cfg TelemetryConfig) Validate() error {
 	case ErrorLoggingLevel, WarnLoggingLevel, InfoLoggingLevel, DebugLoggingLevel:
 		break
 	default:
-		err = multierr.Append(
+		err = errors.Join(
 			err,
 			fmt.Errorf("log level must be either %s, %s, %s or %s", ErrorLoggingLevel, WarnLoggingLevel, InfoLoggingLevel, DebugLoggingLevel),
 		)
@@ -80,7 +79,7 @@ func (cfg TelemetryConfig) Validate() error {
 	case AutoLoggingFormat, JsonLoggingFormat, TextLoggingFormat:
 		break
 	default:
-		err = multierr.Append(
+		err = errors.Join(
 			err,
 			fmt.Errorf("standard log format must be either %s, %s or %s", AutoLoggingFormat, JsonLoggingFormat, TextLoggingFormat),
 		)

pkg/modules/api/api.go

@@ -7,7 +7,6 @@ import (
 	"log/slog"
 	"net"
 	"net/http"
-	"os"
 	"sort"
 	"strings"
 	"time"
@@ -16,7 +15,6 @@ import (
 	"github.com/dlclark/regexp2"
 	"github.com/labstack/echo/v4"
 	flag "github.com/spf13/pflag"
-	"go.uber.org/multierr"
 	"golang.org/x/net/http2"
 	"golang.org/x/sync/errgroup"
 
@@ -28,7 +26,7 @@ func init() {
 }
 
 // Api is a module that provides an HTTP server. Other modules may add routes,
-// middlewares, or health checks.
+// middlewares or health checks.
 type Api struct {
 	port                             int
 	bindIp                           string
@@ -38,14 +36,14 @@ type Api struct {
 	bodyLimit                        int64
 	timeout                          time.Duration
 	rootPath                         string
+	correlationIdHeader              string
 	basicAuthUsername                string
 	basicAuthPassword                string
-	correlationIdHeader              string
 	downloadFromCfg                  downloadFromConfig
 	disableHealthCheckRouteTelemetry bool
 	disableRootRouteTelemetry        bool
-	disableVersionRouteTelemetry     bool
 	disableDebugRouteTelemetry       bool
+	disableVersionRouteTelemetry     bool
 	enableDebugRoute                 bool
 
 	routes              []Route
@@ -59,8 +57,8 @@ type Api struct {
 }
 
 type downloadFromConfig struct {
-	allowList *regexp2.Regexp
-	denyList  *regexp2.Regexp
+	allowList []*regexp2.Regexp
+	denyList  []*regexp2.Regexp
 	maxRetry  int
 	disable   bool
 }
@@ -84,7 +82,8 @@ type Route struct {
 	// Optional.
 	IsMultipart bool
 
-	// DisableTelemetry disables the telemetry and logging for this route.
+	// DisableTelemetry disables telemetry (logging, tracing, metrics) for
+	// this route.
 	// Optional.
 	DisableTelemetry bool
 
@@ -122,6 +121,29 @@ const (
 
 // Middleware is a middleware that can be added to the [Api]'s middlewares
 // chain.
+//
+//	middleware := Middleware{
+//	  Handler: func() echo.MiddlewareFunc {
+//	    return func(next echo.HandlerFunc) echo.HandlerFunc {
+//	      return func(c echo.Context) error {
+//	        rootPath := c.Get("rootPath").(string)
+//	        healthURI := fmt.Sprintf("%shealth", rootPath)
+//
+//	        // Skip the middleware if health check URI.
+//	        if c.Request().RequestURI == healthURI {
+//	          // Call the next middleware in the chain.
+//	          return next(c)
+//	        }
+//
+//	        // Your middleware process.
+//	        // ...
+//
+//	        // Call the next middleware in the chain.
+//	        return next(c)
+//	      }
+//	    }
+//	  }(),
+//	}
 type Middleware struct {
 	// Stack tells in which stack the middleware should be located.
 	// Default to [DefaultStack].
@@ -171,18 +193,29 @@ func (a *Api) Descriptor() gotenberg.ModuleDescriptor {
 			fs.Duration("api-timeout", time.Duration(30)*time.Second, "Set the time limit for requests")
 			fs.String("api-body-limit", "", "Set the body limit for multipart/form-data requests - it accepts values like 5MB, 1GB, etc")
 			fs.String("api-root-path", "/", "Set the root path of the API - for service discovery via URL paths")
+			fs.String("api-correlation-id-header", "Gotenberg-Trace", "Set the header name to use for identifying requests")
 			fs.Bool("api-enable-basic-auth", false, "Enable basic authentication - will look for the GOTENBERG_API_BASIC_AUTH_USERNAME and GOTENBERG_API_BASIC_AUTH_PASSWORD environment variables")
-			fs.String("api-correlation-id-header", "X-Correlation-ID", "Set the header name to use to set the correlation id in the logs")
-			fs.String("api-download-from-allow-list", "", "Set the allowed URLs for the download from feature using a regular expression")
-			fs.String("api-download-from-deny-list", "", "Set the denied URLs for the download from feature using a regular expression")
+			fs.StringSlice("api-download-from-allow-list", []string{}, "Set the allowed URLs for the download from feature using regular expressions - supports multiple values")
+			fs.StringSlice("api-download-from-deny-list", []string{`^https?://(10\.|172\.(1[6-9]|2[0-9]|3[01])\.|192\.168\.|169\.254\.|0\.0\.0\.0|127\.|localhost|\[::1\]|\[fd)`}, "Set the denied URLs for the download from feature using regular expressions - supports multiple values")
 			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-route-telemetry", false, "Disable the health check route telemetry")
-			fs.Bool("api-disable-root-route-telemetry", false, "Disable the root route telemetry")
-			fs.Bool("api-disable-version-route-telemetry", false, "Disable the version route telemetry")
-			fs.Bool("api-disable-debug-route-telemetry", false, "Disable the debug route telemetry")
+			fs.Bool("api-disable-health-check-route-telemetry", true, "Disable telemetry for health check route")
+			fs.Bool("api-disable-root-route-telemetry", true, "Disable telemetry for the root route")
+			fs.Bool("api-disable-debug-route-telemetry", true, "Disable telemetry for the debug route")
+			fs.Bool("api-disable-version-route-telemetry", true, "Disable telemetry for the version route")
 			fs.Bool("api-enable-debug-route", false, "Enable the debug route")
 
+			// Deprecated flags.
+			fs.String("api-trace-header", "Gotenberg-Trace", "Set the header name to use for identifying requests")
+			fs.Bool("api-disable-health-check-logging", false, "Disable health check logging")
+
+			err := errors.Join(
+				fs.MarkDeprecated("api-trace-header", "use --api-correlation-id-header instead"),
+				fs.MarkDeprecated("api-disable-health-check-logging", "use --api-disable-health-check-route-telemetry instead"),
+			)
+			if err != nil {
+				panic(err)
+			}
 			return fs
 		}(),
 		New: func() gotenberg.Module { return new(Api) },
@@ -200,17 +233,17 @@ func (a *Api) Provision(ctx *gotenberg.Context) error {
 	a.timeout = flags.MustDuration("api-timeout")
 	a.bodyLimit = flags.MustHumanReadableBytes("api-body-limit")
 	a.rootPath = flags.MustString("api-root-path")
-	a.correlationIdHeader = flags.MustString("api-correlation-id-header")
+	a.correlationIdHeader = flags.MustDeprecatedString("api-trace-header", "api-correlation-id-header")
 	a.downloadFromCfg = downloadFromConfig{
-		allowList: flags.MustRegexp("api-download-from-allow-list"),
-		denyList:  flags.MustRegexp("api-download-from-deny-list"),
+		allowList: flags.MustRegexpSlice("api-download-from-allow-list"),
+		denyList:  flags.MustRegexpSlice("api-download-from-deny-list"),
 		maxRetry:  flags.MustInt("api-download-from-max-retry"),
 		disable:   flags.MustBool("api-disable-download-from"),
 	}
-	a.disableHealthCheckRouteTelemetry = flags.MustBool("api-disable-health-check-route-telemetry")
+	a.disableHealthCheckRouteTelemetry = flags.MustDeprecatedBool("api-disable-health-check-logging", "api-disable-health-check-route-telemetry")
 	a.disableRootRouteTelemetry = flags.MustBool("api-disable-root-route-telemetry")
-	a.disableVersionRouteTelemetry = flags.MustBool("api-disable-version-route-telemetry")
 	a.disableDebugRouteTelemetry = flags.MustBool("api-disable-debug-route-telemetry")
+	a.disableVersionRouteTelemetry = flags.MustBool("api-disable-version-route-telemetry")
 	a.enableDebugRoute = flags.MustBool("api-enable-debug-route")
 
 	// Port from env?
@@ -329,33 +362,39 @@ func (a *Api) Validate() error {
 	var err error
 
 	if a.port < 1 || a.port > 65535 {
-		err = multierr.Append(err,
+		err = errors.Join(err,
 			errors.New("port must be more than 1 and less than 65535"),
 		)
 	}
 
 	if a.bindIp != "" && net.ParseIP(a.bindIp) == nil {
-		err = multierr.Append(err, errors.New("IP must be a valid IP address"))
+		err = errors.Join(err, errors.New("IP must be a valid IP address"))
 	}
 
 	if (a.tlsCertFile != "" && a.tlsKeyFile == "") || (a.tlsCertFile == "" && a.tlsKeyFile != "") {
-		err = multierr.Append(err,
+		err = errors.Join(err,
 			errors.New("both TLS certificate and key files must be set"),
 		)
 	}
 
 	if !strings.HasPrefix(a.rootPath, "/") {
-		err = multierr.Append(err,
+		err = errors.Join(err,
 			errors.New("root path must start with /"),
 		)
 	}
 
 	if !strings.HasSuffix(a.rootPath, "/") {
-		err = multierr.Append(err,
+		err = errors.Join(err,
 			errors.New("root path must end with /"),
 		)
 	}
 
+	if len(strings.TrimSpace(a.correlationIdHeader)) == 0 {
+		err = errors.Join(err,
+			errors.New("trace header must not be empty"),
+		)
+	}
+
 	if err != nil {
 		return err
 	}
@@ -422,40 +461,29 @@ func (a *Api) Start() error {
 			disableTelemetryForPaths = append(disableTelemetryForPaths, strings.TrimPrefix(route.Path, "/"))
 		}
 	}
-	// Check if the user wishes to disable telemetry for system routes.
-	// Note: root path will be used as prefix in the underlying middlewares.
+
+	// Check if the user wishes to disable telemetry for specific routes.
 	if a.disableHealthCheckRouteTelemetry {
 		disableTelemetryForPaths = append(disableTelemetryForPaths, "health")
 	}
-
 	if a.disableRootRouteTelemetry {
 		disableTelemetryForPaths = append(disableTelemetryForPaths, "")
 	}
-
+	if a.disableDebugRouteTelemetry {
+		disableTelemetryForPaths = append(disableTelemetryForPaths, "debug")
+	}
 	if a.disableVersionRouteTelemetry {
 		disableTelemetryForPaths = append(disableTelemetryForPaths, "version")
 	}
 
-	if a.disableDebugRouteTelemetry {
-		disableTelemetryForPaths = append(disableTelemetryForPaths, "debug")
-	}
-
-	// Always disable telemetry for favicon.
-	disableTelemetryForPaths = append(disableTelemetryForPaths,
-		"favicon.ico",
-	)
+	serverName := fmt.Sprintf("%s:%d", a.bindIp, a.port)
 
 	// Add the API middlewares.
-	hostname, err := os.Hostname()
-	if err != nil {
-		return fmt.Errorf("get hostname: %w", err)
-	}
-
 	a.srv.Pre(
 		latencyMiddleware(),
 		rootPathMiddleware(a.rootPath),
 		outputFilenameMiddleware(),
-		telemetryMiddleware(a.logger, hostname, a.correlationIdHeader, disableTelemetryForPaths),
+		telemetryMiddleware(a.logger, serverName, a.correlationIdHeader, disableTelemetryForPaths),
 	)
 
 	// Add the modules' middlewares in their respective stacks.
@@ -527,7 +555,9 @@ func (a *Api) Start() error {
 	)
 
 	// Let's not forget the health check routes...
-	checks := append(a.healthChecks, health.WithTimeout(a.timeout))
+	checks := make([]health.CheckerOption, len(a.healthChecks), len(a.healthChecks)+1)
+	copy(checks, a.healthChecks)
+	checks = append(checks, health.WithTimeout(a.timeout))
 	checker := health.NewChecker(checks...)
 	healthCheckHandler := health.NewHandler(checker)
 
@@ -575,7 +605,7 @@ func (a *Api) Start() error {
 		eg.Go(f)
 	}
 
-	err = eg.Wait()
+	err := eg.Wait()
 	if err != nil {
 		return fmt.Errorf("waiting for modules readiness: %w", err)
 	}
@@ -593,7 +623,6 @@ func (a *Api) Start() error {
 		}
 		if !errors.Is(err, http.ErrServerClosed) {
 			a.logger.ErrorContext(context.Background(), err.Error())
-			os.Exit(1)
 		}
 	}()
 

pkg/modules/api/context.go

@@ -21,13 +21,14 @@ import (
 	"github.com/labstack/echo/v4"
 	"github.com/mholt/archives"
 	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/codes"
 	"go.opentelemetry.io/otel/propagation"
+	semconv "go.opentelemetry.io/otel/semconv/v1.40.0"
 	"go.opentelemetry.io/otel/trace"
 	"golang.org/x/sync/errgroup"
 	"golang.org/x/text/unicode/norm"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
-	semconvutil "github.com/gotenberg/gotenberg/v8/pkg/gotenberg/semconv"
 )
 
 var (
@@ -42,12 +43,13 @@ var (
 
 // Context is the request context for a "multipart/form-data" request.
 type Context struct {
-	dirPath      string
-	values       map[string][]string
-	files        map[string]string
-	filesByField map[string][]string
-	outputPaths  []string
-	cancelled    bool
+	dirPath        string
+	values         map[string][]string
+	files          map[string]string
+	filesByField   map[string][]string
+	diskToOriginal map[string]string
+	outputPaths    []string
+	cancelled      bool
 
 	logger     *slog.Logger
 	echoCtx    echo.Context
@@ -85,8 +87,14 @@ type downloadFrom struct {
 	// ExtraHttpHeaders are the HTTP headers to send alongside.
 	ExtraHttpHeaders map[string]string `json:"extraHttpHeaders"`
 
-	// Download as an attachment file.
-	Attachment bool `json:"attachment"`
+	// Embedded routes the downloaded file as an embed. Deprecated: use
+	// Field instead. Kept for backward compatibility.
+	Embedded bool `json:"embedded"`
+
+	// Field routes the downloaded file to a specific form field bucket.
+	// Supported values: "watermark", "stamp". For embeds, prefer the
+	// Embedded flag or set Field to "embedded".
+	Field string `json:"field"`
 }
 
 // newContext returns a [Context] by parsing a "multipart/form-data" request.
@@ -135,12 +143,12 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 
 			err := os.RemoveAll(ctx.dirPath)
 			if err != nil {
-				ctx.logger.ErrorContext(ctx, fmt.Sprintf("remove context's working directory: %s", err))
+				ctx.logger.ErrorContext(context.Background(), fmt.Sprintf("remove context's working directory: %s", err))
 
 				return
 			}
 
-			ctx.logger.DebugContext(ctx, fmt.Sprintf("'%s' context's working directory removed", ctx.dirPath))
+			ctx.logger.DebugContext(context.Background(), fmt.Sprintf("'%s' context's working directory removed", ctx.dirPath))
 			ctx.cancelled = true
 		}
 	}()
@@ -193,6 +201,7 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 	ctx.values = form.Value
 	ctx.files = make(map[string]string)
 	ctx.filesByField = make(map[string][]string)
+	ctx.diskToOriginal = make(map[string]string)
 
 	// First, try to download files listed in the "downloadFrom" form field, if
 	// any.
@@ -223,15 +232,23 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 					)
 				}
 
-				err := gotenberg.FilterDeadline(downloadFromCfg.allowList, downloadFromCfg.denyList, dl.Url, deadline)
+				err := gotenberg.FilterOutboundURL(ctx, dl.Url, downloadFromCfg.allowList, downloadFromCfg.denyList, deadline)
 				if err != nil {
 					return fmt.Errorf("filter URL: %w", err)
 				}
 
-				logger.DebugContext(ctx, fmt.Sprintf("download file from '%s'", dl.Url))
+				dlCtx, dlSpan := gotenberg.Tracer().Start(ctx, "GET Download From",
+					trace.WithSpanKind(trace.SpanKindClient),
+					trace.WithAttributes(semconv.ServerAddress(dl.Url)),
+				)
 
-				req, err := retryablehttp.NewRequestWithContext(ctx, http.MethodGet, dl.Url, nil)
+				logger.DebugContext(dlCtx, fmt.Sprintf("download file from '%s'", dl.Url))
+
+				req, err := retryablehttp.NewRequest(http.MethodGet, dl.Url, nil)
 				if err != nil {
+					dlSpan.RecordError(err)
+					dlSpan.SetStatus(codes.Error, err.Error())
+					dlSpan.End()
 					return fmt.Errorf("create request to '%s': %w", dl.Url, err)
 				}
 
@@ -239,45 +256,37 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 				for key, value := range dl.ExtraHttpHeaders {
 					req.Header.Set(key, value)
 				}
-				req.Header.Set(echoCtx.Get("correlationIdHeader").(string), echoCtx.Get("correlationId").(string))
 
-				// OpenTelemetry.
-				meter := gotenberg.Meter()
-				semconvClient := semconvutil.NewHTTPClient(meter)
+				// Inject OTEL trace context into outbound request.
+				otel.GetTextMapPropagator().Inject(dlCtx, propagation.HeaderCarrier(req.Header))
 
-				tracer := gotenberg.Tracer()
-				traceCtx, span := tracer.Start(ctx, fmt.Sprintf("%s Download From", req.Method),
-					trace.WithSpanKind(trace.SpanKindClient),
-					trace.WithAttributes(semconvClient.RequestTraceAttrs(req.Request)...),
-				)
-				defer span.End()
-
-				otel.GetTextMapPropagator().Inject(traceCtx, propagation.HeaderCarrier(req.Header))
+				// Propagate correlation ID header.
+				if correlationIdHeader, ok := echoCtx.Get("correlationIdHeader").(string); ok {
+					if correlationId, ok := echoCtx.Get("correlationId").(string); ok {
+						req.Header.Set(correlationIdHeader, correlationId)
+					}
+				}
 
 				client := &retryablehttp.Client{
-					HTTPClient: &http.Client{
-						Timeout: time.Until(deadline),
-					},
+					HTTPClient:   gotenberg.NewOutboundHttpClient(time.Until(deadline), downloadFromCfg.allowList, downloadFromCfg.denyList),
 					RetryMax:     downloadFromCfg.maxRetry,
 					RetryWaitMin: time.Duration(1) * time.Second,
 					RetryWaitMax: time.Until(deadline),
-					Logger:       gotenberg.NewLeveledLogger(logger).WithContext(ctx),
+					Logger:       gotenberg.NewLeveledLogger(logger),
 					CheckRetry:   retryablehttp.DefaultRetryPolicy,
 					Backoff:      retryablehttp.DefaultBackoff,
 				}
 
 				resp, err := client.Do(req)
 				if err != nil {
-					span.RecordError(err)
-					span.SetStatus(semconvClient.Status(0))
+					dlSpan.RecordError(err)
+					dlSpan.SetStatus(codes.Error, err.Error())
+					dlSpan.End()
 					return WrapError(
 						fmt.Errorf("download file from to '%s': %w", dl.Url, err),
 						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Unable to download file from '%s': %s", dl.Url, err)),
 					)
 				}
-
-				span.SetAttributes(semconvClient.ResponseTraceAttrs(resp)...)
-				span.SetStatus(semconvClient.Status(resp.StatusCode))
 				defer func() {
 					err := resp.Body.Close()
 					if err != nil {
@@ -286,16 +295,24 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 				}()
 
 				if resp.StatusCode != http.StatusOK {
+					dlErr := fmt.Errorf("download file from to '%s': got status: '%s'", dl.Url, resp.Status)
+					dlSpan.RecordError(dlErr)
+					dlSpan.SetStatus(codes.Error, dlErr.Error())
+					dlSpan.End()
 					return WrapError(
-						fmt.Errorf("download file from to '%s': got status: '%s'", dl.Url, resp.Status),
+						dlErr,
 						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Unable to download file from '%s': got status: '%s'", dl.Url, resp.Status)),
 					)
 				}
 
 				contentDisposition := resp.Header.Get("Content-Disposition")
 				if contentDisposition == "" {
+					dlErr := fmt.Errorf("no 'Content-Disposition' header from '%s'", dl.Url)
+					dlSpan.RecordError(dlErr)
+					dlSpan.SetStatus(codes.Error, dlErr.Error())
+					dlSpan.End()
 					return WrapError(
-						fmt.Errorf("no 'Content-Disposition' header from '%s'", dl.Url),
+						dlErr,
 						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("No 'Content-Disposition' header from '%s'", dl.Url)),
 					)
 				}
@@ -305,16 +322,24 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 				//  See: https://github.com/golang/go/issues/69551.
 				_, params, err := mime.ParseMediaType(contentDisposition)
 				if err != nil {
+					dlErr := fmt.Errorf("parse 'Content-Disposition' header '%s' from '%s': %w", contentDisposition, dl.Url, err)
+					dlSpan.RecordError(dlErr)
+					dlSpan.SetStatus(codes.Error, dlErr.Error())
+					dlSpan.End()
 					return WrapError(
-						fmt.Errorf("parse 'Content-Disposition' header '%s' from '%s': %w", contentDisposition, dl.Url, err),
+						dlErr,
 						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Invalid 'Content-Disposition' header '%s' from '%s': %s", contentDisposition, dl.Url, err)),
 					)
 				}
 
 				filename, ok := params["filename"]
 				if !ok {
+					dlErr := fmt.Errorf("get filename from 'Content-Disposition' header '%s' from '%s'", contentDisposition, dl.Url)
+					dlSpan.RecordError(dlErr)
+					dlSpan.SetStatus(codes.Error, dlErr.Error())
+					dlSpan.End()
 					return WrapError(
-						fmt.Errorf("get filename from 'Content-Disposition' header '%s' from '%s'", contentDisposition, dl.Url),
+						dlErr,
 						NewSentinelHttpError(http.StatusBadRequest, fmt.Sprintf("Invalid 'Content-Disposition' header '%s' from '%s': no filename", contentDisposition, dl.Url)),
 					)
 				}
@@ -323,11 +348,20 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 				// normalized.
 				// See: https://github.com/gotenberg/gotenberg/issues/662.
 				filename = norm.NFC.String(filepath.Base(filename))
-				path := fmt.Sprintf("%s/%s", dirPath, filename)
+
+				// Use a UUID-based name on disk to avoid filesystem
+				// NAME_MAX limits with long filenames.
+				// See: https://github.com/gotenberg/gotenberg/issues/1500.
+				safeName := uuid.New().String() + filepath.Ext(filename)
+				path := fmt.Sprintf("%s/%s", ctx.dirPath, safeName)
 
 				out, err := os.Create(path)
 				if err != nil {
-					return fmt.Errorf("create local file: %w", err)
+					dlErr := fmt.Errorf("create local file: %w", err)
+					dlSpan.RecordError(dlErr)
+					dlSpan.SetStatus(codes.Error, dlErr.Error())
+					dlSpan.End()
+					return dlErr
 				}
 				defer func() {
 					err := out.Close()
@@ -341,12 +375,27 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 
 				_, err = io.Copy(out, reader)
 				if err != nil {
-					return fmt.Errorf("copy downloaded file from '%s' to local file: %w", dl.Url, err)
+					dlErr := fmt.Errorf("copy downloaded file from '%s' to local file: %w", dl.Url, err)
+					dlSpan.RecordError(dlErr)
+					dlSpan.SetStatus(codes.Error, dlErr.Error())
+					dlSpan.End()
+					return dlErr
 				}
 
+				dlSpan.SetStatus(codes.Ok, "")
+				dlSpan.End()
+
 				ctx.files[filename] = path
-				if dl.Attachment {
-					ctx.filesByField[AttachmentsFormField] = append(ctx.filesByField[AttachmentsFormField], path)
+				ctx.diskToOriginal[path] = filename
+
+				// Route the downloaded file to the appropriate field bucket.
+				switch {
+				case dl.Field == "embedded" || dl.Embedded:
+					ctx.filesByField[EmbedsFormField] = append(ctx.filesByField[EmbedsFormField], path)
+				case dl.Field == "watermark":
+					ctx.filesByField[WatermarkFormField] = append(ctx.filesByField[WatermarkFormField], path)
+				case dl.Field == "stamp":
+					ctx.filesByField[StampFormField] = append(ctx.filesByField[StampFormField], path)
 				}
 
 				return nil
@@ -368,7 +417,7 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 		defer func() {
 			err := in.Close()
 			if err != nil {
-				logger.ErrorContext(ctx, fmt.Sprintf("close file header: %s", err))
+				logger.ErrorContext(context.Background(), fmt.Sprintf("close file header: %s", err))
 			}
 		}()
 
@@ -379,7 +428,12 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 		// normalized.
 		// See: https://github.com/gotenberg/gotenberg/issues/662.
 		filename := norm.NFC.String(filepath.Base(fh.Filename))
-		path := fmt.Sprintf("%s/%s", ctx.dirPath, filename)
+
+		// Use a UUID-based name on disk to avoid filesystem
+		// NAME_MAX limits with long filenames.
+		// See: https://github.com/gotenberg/gotenberg/issues/1500.
+		safeName := uuid.New().String() + filepath.Ext(filename)
+		path := fmt.Sprintf("%s/%s", ctx.dirPath, safeName)
 
 		out, err := os.Create(path)
 		if err != nil {
@@ -388,7 +442,7 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 		defer func() {
 			err := out.Close()
 			if err != nil {
-				logger.ErrorContext(ctx, fmt.Sprintf("close local file: %s", err))
+				logger.ErrorContext(context.Background(), fmt.Sprintf("close local file: %s", err))
 			}
 		}()
 
@@ -398,6 +452,7 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 		}
 
 		ctx.files[filename] = path
+		ctx.diskToOriginal[path] = filename
 
 		return nil
 	}
@@ -416,6 +471,23 @@ func newContext(echoCtx echo.Context, logger *slog.Logger, fs *gotenberg.FileSys
 		}
 	}
 
+	// Create symlinks from original filenames to UUID-based disk names
+	// so that relative asset references (e.g., <img src="image.png">)
+	// resolve correctly when Chromium navigates to a file:// URL.
+	// Symlink creation is best-effort: it may fail for filenames that
+	// exceed the filesystem NAME_MAX limit (the reason UUIDs were
+	// introduced in the first place).
+	for originalName, diskPath := range ctx.files {
+		symlinkPath := fmt.Sprintf("%s/%s", ctx.dirPath, originalName)
+		if symlinkPath == diskPath {
+			continue
+		}
+		err = os.Symlink(filepath.Base(diskPath), symlinkPath)
+		if err != nil {
+			logger.DebugContext(context.Background(), fmt.Sprintf("skip symlink for '%s': %s", originalName, err))
+		}
+	}
+
 	ctx.Log().DebugContext(ctx, fmt.Sprintf("form fields: %+v", ctx.values))
 	ctx.Log().DebugContext(ctx, fmt.Sprintf("form files: %+v", ctx.files))
 	ctx.Log().DebugContext(ctx, fmt.Sprintf("form files by field: %+v", ctx.filesByField))
@@ -432,13 +504,34 @@ func (ctx *Context) Request() *http.Request {
 // FormData return a [FormData].
 func (ctx *Context) FormData() *FormData {
 	return &FormData{
-		values:       ctx.values,
-		files:        ctx.files,
-		filesByField: ctx.filesByField,
-		errors:       nil,
+		values:         ctx.values,
+		files:          ctx.files,
+		filesByField:   ctx.filesByField,
+		diskToOriginal: ctx.diskToOriginal,
+		errors:         nil,
 	}
 }
 
+// OriginalFilename returns the original filename associated with a disk path.
+// If no mapping exists, it falls back to [filepath.Base].
+func (ctx *Context) OriginalFilename(diskPath string) string {
+	if original, ok := ctx.diskToOriginal[diskPath]; ok {
+		return original
+	}
+	return filepath.Base(diskPath)
+}
+
+// RegisterDiskPath associates a disk path with an original filename so that
+// [Context.OriginalFilename] can resolve it later.
+func (ctx *Context) RegisterDiskPath(diskPath, originalFilename string) {
+	ctx.diskToOriginal[diskPath] = originalFilename
+}
+
+// DirPath returns the path to the request's working directory.
+func (ctx *Context) DirPath() string {
+	return ctx.dirPath
+}
+
 // GeneratePath generates a path within the context's working directory.
 // It generates a new UUID-based filename. It does not create a file.
 func (ctx *Context) GeneratePath(extension string) string {
@@ -446,10 +539,14 @@ func (ctx *Context) GeneratePath(extension string) string {
 }
 
 // GeneratePathFromFilename generates a path within the context's working
-// directory, using the given filename (with extension). It does not create
-// a file.
+// directory. It uses a UUID-based name on disk to avoid filesystem NAME_MAX
+// limits but registers the given filename so that [Context.OriginalFilename]
+// can resolve it. It does not create a file.
 func (ctx *Context) GeneratePathFromFilename(filename string) string {
-	return fmt.Sprintf("%s/%s", ctx.dirPath, filename)
+	safeName := uuid.New().String() + filepath.Ext(filename)
+	path := fmt.Sprintf("%s/%s", ctx.dirPath, safeName)
+	ctx.diskToOriginal[path] = filename
+	return path
 }
 
 // CreateSubDirectory creates a subdirectory within the context's working
@@ -516,7 +613,7 @@ func (ctx *Context) BuildOutputFile() (string, error) {
 	filesInfo, err := archives.FilesFromDisk(ctx.Context, nil, func() map[string]string {
 		f := make(map[string]string)
 		for _, outputPath := range ctx.outputPaths {
-			f[outputPath] = ""
+			f[outputPath] = ctx.OriginalFilename(outputPath)
 		}
 		return f
 	}())
@@ -552,7 +649,7 @@ func (ctx *Context) OutputFilename(outputPath string) string {
 	filename := ctx.echoCtx.Get("outputFilename").(string)
 
 	if filename == "" {
-		return filepath.Base(outputPath)
+		return ctx.OriginalFilename(outputPath)
 	}
 
 	return fmt.Sprintf("%s%s", filename, filepath.Ext(outputPath))

pkg/modules/api/context_test.go

@@ -7,7 +7,6 @@ import (
 	"mime/multipart"
 	"net/http"
 	"net/http/httptest"
-	"os"
 	"testing"
 	"time"
 
@@ -36,7 +35,7 @@ func TestNewContext_Cancellation(t *testing.T) {
 	rec := httptest.NewRecorder()
 	c := e.NewContext(req, rec)
 
-	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+	logger := slog.New(slog.DiscardHandler)
 	fs := gotenberg.NewFileSystem(new(gotenberg.OsMkdirAll))
 	timeout := time.Duration(10) * time.Second
 	downloadFromCfg := downloadFromConfig{

pkg/modules/api/doc.go

@@ -1,3 +1,3 @@
-// Package api provides a module, which is an HTTP server. Other modules may
-// add multipart/form-data routes, middlewares, and health checks.
+// Package api implements the HTTP server module. Other modules register
+// multipart/form data routes, middlewares, and health checks through it.
 package api

pkg/modules/api/formdata.go

@@ -1,6 +1,8 @@
 package api
 
 import (
+	"encoding/json"
+	"errors"
 	"fmt"
 	"math"
 	"net/http"
@@ -12,14 +14,18 @@ import (
 	"strings"
 	"time"
 
-	"go.uber.org/multierr"
-
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 )
 
-// AttachmentsFormField represents the form field name for attaching files.
 const (
-	AttachmentsFormField string = "attachments"
+	// EmbedsFormField represents the form field name for embedding files.
+	EmbedsFormField string = "embeds"
+
+	// WatermarkFormField represents the form field name for the watermark file.
+	WatermarkFormField string = "watermark"
+
+	// StampFormField represents the form field name for the stamp file.
+	StampFormField string = "stamp"
 )
 
 // FormData is a helper for validating and hydrating values from a
@@ -27,10 +33,11 @@ const (
 //
 //	form := ctx.FormData()
 type FormData struct {
-	values       map[string][]string
-	files        map[string]string
-	filesByField map[string][]string
-	errors       error
+	values         map[string][]string
+	files          map[string]string
+	filesByField   map[string][]string
+	diskToOriginal map[string]string
+	errors         error
 }
 
 // Validate returns nil or an error related to the [FormData] values, with a
@@ -365,26 +372,58 @@ func (form *FormData) Paths(extensions []string, target *[]string) *FormData {
 	return form.paths(extensions, target)
 }
 
-// Attachments binds the absolute paths of form data files that should be
-// attached in the PDF. Only files uploaded with the "attachments" field name
+// Embeds binds the absolute paths of form data files that should be
+// embedded in the PDF. Only files uploaded with the "embeds" field name
 // will be included.
 //
-//	var attachments []string
+//	var embeds []string
 //
-//	ctx.FormData().Attachments(&attachments)
-func (form *FormData) Attachments(target *[]string) *FormData {
+//	ctx.FormData().Embeds(&embeds)
+func (form *FormData) Embeds(target *[]string) *FormData {
 	if form.errors != nil {
 		return form
 	}
 
-	// Get files from the "attachments" field
-	if paths, ok := form.filesByField[AttachmentsFormField]; ok {
+	// Get files from the "embeds" field
+	if paths, ok := form.filesByField[EmbedsFormField]; ok {
 		*target = append(*target, paths...)
 	}
 
 	return form
 }
 
+// EmbedsMetadata parses the "embedsMetadata" form field (a JSON string) into
+// a map keyed by filename. Each value is a map of property names to values
+// (e.g., "mimeType" and "relationship").
+//
+//	var metadata map[string]map[string]string
+//
+//	ctx.FormData().EmbedsMetadata(&metadata)
+func (form *FormData) EmbedsMetadata(target *map[string]map[string]string) *FormData {
+	if form.errors != nil {
+		return form
+	}
+
+	val, ok := form.values["embedsMetadata"]
+	if !ok || len(val) == 0 || val[0] == "" {
+		return form
+	}
+
+	raw := val[0]
+	parsed := make(map[string]map[string]string)
+
+	err := json.Unmarshal([]byte(raw), &parsed)
+	if err != nil {
+		form.append(
+			fmt.Errorf("form field 'embedsMetadata' is invalid: %w", err),
+		)
+		return form
+	}
+
+	*target = parsed
+	return form
+}
+
 // MandatoryPaths binds the absolute paths of form data files, according to a
 // list of file extensions, to a string slice variable. It populates an error
 // if there is no file for given file extensions.
@@ -406,34 +445,96 @@ func (form *FormData) MandatoryPaths(extensions []string, target *[]string) *For
 	return form
 }
 
+// Watermark binds the absolute path of the form data file that should be
+// used as a watermark source. Only a file uploaded with the "watermark"
+// field name will be included.
+func (form *FormData) Watermark(target *string) *FormData {
+	if form.errors != nil {
+		return form
+	}
+
+	if paths, ok := form.filesByField[WatermarkFormField]; ok && len(paths) > 0 {
+		*target = paths[0]
+	}
+
+	return form
+}
+
+// Stamp binds the absolute path of the form data file that should be
+// used as a stamp source. Only a file uploaded with the "stamp"
+// field name will be included.
+func (form *FormData) Stamp(target *string) *FormData {
+	if form.errors != nil {
+		return form
+	}
+
+	if paths, ok := form.filesByField[StampFormField]; ok && len(paths) > 0 {
+		*target = paths[0]
+	}
+
+	return form
+}
+
 // paths bind the absolute paths of form data files, according to a list of
 // file extensions, to a string slice variable.
-// attachments are excluded.
+// embeds, watermark, and stamp files are excluded.
 func (form *FormData) paths(extensions []string, target *[]string) *FormData {
-	attachments, ok := form.filesByField[AttachmentsFormField]
+	embeds, ok := form.filesByField[EmbedsFormField]
+	watermarks, wmOk := form.filesByField[WatermarkFormField]
+	stamps, stOk := form.filesByField[StampFormField]
+
+	// Collect (originalFilename, diskPath) pairs so that we can sort by
+	// original filename rather than by UUID-based disk name.
+	// See https://github.com/gotenberg/gotenberg/issues/1500.
+	type entry struct {
+		original string
+		disk     string
+	}
+	var entries []entry
 
 	for filename, path := range form.files {
-		if ok && slices.Contains(attachments, path) {
+		if ok && slices.Contains(embeds, path) {
+			continue
+		}
+
+		if wmOk && slices.Contains(watermarks, path) {
+			continue
+		}
+
+		if stOk && slices.Contains(stamps, path) {
 			continue
 		}
 
 		for _, ext := range extensions {
 			// See https://github.com/gotenberg/gotenberg/issues/228.
 			if strings.ToLower(filepath.Ext(filename)) == ext {
-				*target = append(*target, path)
+				entries = append(entries, entry{original: filename, disk: path})
 			}
 		}
 	}
 
 	// See https://github.com/gotenberg/gotenberg/issues/139.
-	sort.Sort(gotenberg.AlphanumericSort(*target))
+	originals := make(gotenberg.AlphanumericSort, len(entries))
+	for i, e := range entries {
+		originals[i] = e.original
+	}
+	sort.Sort(originals)
+
+	// Build a lookup from original name to disk path.
+	lookup := make(map[string]string, len(entries))
+	for _, e := range entries {
+		lookup[e.original] = e.disk
+	}
+	for _, o := range originals {
+		*target = append(*target, lookup[o])
+	}
 
 	return form
 }
 
 // append adds an error to the list of errors.
 func (form *FormData) append(err error) {
-	form.errors = multierr.Append(form.errors, err)
+	form.errors = errors.Join(form.errors, err)
 }
 
 // mustValue binds the target interface with a form field. If the value is

pkg/modules/api/formdata_test.go

@@ -1613,15 +1613,15 @@ func TestFormData_Paths(t *testing.T) {
 			expectCount: 2,
 		},
 		{
-			scenario: "files except attachments",
+			scenario: "files except embeds",
 			form: &FormData{
 				files: map[string]string{
-					"foo.pdf":           "/foo.pdf",
-					"attachments_1.pdf": "/attachments_1.pdf",
-					"attachments_2.xml": "/attachments_2.xml",
+					"foo.pdf":     "/foo.pdf",
+					"embed_1.pdf": "/embed_1.pdf",
+					"embed_2.xml": "/embed_2.xml",
 				},
 				filesByField: map[string][]string{
-					"attachments": {"/attachments_1.pdf", "/attachments_2.xml"},
+					"embeds": {"/embed_1.pdf", "/embed_2.xml"},
 				},
 			},
 			extensions: []string{".pdf"},
@@ -1759,7 +1759,7 @@ func TestFormData_mustAssign(t *testing.T) {
 	form.mustAssign("foo", "foo", &target)
 }
 
-func TestFormData_Attachments(t *testing.T) {
+func TestFormData_Embeds(t *testing.T) {
 	expected := []string{"/bar.xml", "/baz.xml"}
 
 	var actual []string
@@ -1770,13 +1770,13 @@ func TestFormData_Attachments(t *testing.T) {
 			"baz.xml": "/baz.xml",
 		},
 		filesByField: map[string][]string{
-			"attachments": {"/bar.xml", "/baz.xml"},
+			"embeds": {"/bar.xml", "/baz.xml"},
 		},
 	}
-	form.Attachments(&actual)
+	form.Embeds(&actual)
 
 	if len(actual) != len(expected) {
-		t.Errorf("expected %d attachments but got %d", len(expected), len(actual))
+		t.Errorf("expected %d embeds but got %d", len(expected), len(actual))
 	}
 
 	if !reflect.DeepEqual(actual, expected) {

pkg/modules/api/middlewares.go

@@ -5,7 +5,6 @@ import (
 	"crypto/subtle"
 	"errors"
 	"fmt"
-	"io"
 	"log/slog"
 	"net/http"
 	"path/filepath"
@@ -67,8 +66,15 @@ func ParseError(err error) (int, string) {
 		return http.StatusBadRequest, "At least one PDF engine cannot process the requested metadata, while others may have failed to convert due to different issues"
 	}
 
-	var invalidArgsError *gotenberg.PdfEngineInvalidArgsError
-	if errors.As(err, &invalidArgsError) {
+	if errors.Is(err, gotenberg.ErrPdfStampSourceNotSupported) {
+		return http.StatusBadRequest, "At least one PDF engine cannot process the requested stamp source type, while others may have failed due to different issues"
+	}
+
+	if errors.Is(err, gotenberg.ErrPdfRotateAngleNotSupported) {
+		return http.StatusBadRequest, "At least one PDF engine cannot process the requested rotation angle, while others may have failed due to different issues"
+	}
+
+	if invalidArgsError, ok := errors.AsType[*gotenberg.PdfEngineInvalidArgsError](err); ok {
 		return http.StatusBadRequest, invalidArgsError.Error()
 	}
 
@@ -197,7 +203,7 @@ func telemetryMiddleware(logger *slog.Logger, serverName, correlationIdHeader st
 			}
 
 			if skipTelemetry {
-				c.Set("logger", slog.New(slog.NewJSONHandler(io.Discard, nil)))
+				c.Set("logger", slog.New(slog.DiscardHandler))
 
 				err := next(c)
 				if err != nil {

pkg/modules/api/mocks.go

@@ -74,7 +74,7 @@ func (ctx *ContextMock) OutputPaths() []string {
 // SetLogger sets the logger.
 //
 //	ctx := &api.ContextMock{Context: &api.Context{}}
-//	ctx.SetLogger(slog.New(slog.NewJSONHandler(os.Stdout, nil)))
+//	ctx.SetLogger(slog.Default())
 func (ctx *ContextMock) SetLogger(logger *slog.Logger) {
 	ctx.logger = logger
 }

pkg/modules/chromium/browser.go

@@ -19,10 +19,6 @@ import (
 	"github.com/chromedp/chromedp"
 	"github.com/dlclark/regexp2"
 	"github.com/shirou/gopsutil/v4/process"
-	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/codes"
-	semconv "go.opentelemetry.io/otel/semconv/v1.39.0"
-	"go.opentelemetry.io/otel/trace"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 )
@@ -46,8 +42,8 @@ type browserArguments struct {
 	hyphenDataDirPath        string
 
 	// Tasks specific.
-	allowList         *regexp2.Regexp
-	denyList          *regexp2.Regexp
+	allowList         []*regexp2.Regexp
+	denyList          []*regexp2.Regexp
 	clearCache        bool
 	clearCookies      bool
 	disableJavaScript bool
@@ -81,10 +77,7 @@ func (b *chromiumBrowser) Start(logger *slog.Logger) error {
 		return errors.New("browser is already started")
 	}
 
-	debug := &debugLogger{
-		ctx:    b.initialCtx,
-		logger: logger,
-	}
+	debug := &debugLogger{logger: logger}
 	b.userProfileDirPath = b.fs.NewDirPath()
 
 	// See https://github.com/gotenberg/gotenberg/issues/1293.
@@ -206,9 +199,9 @@ func (b *chromiumBrowser) Stop(logger *slog.Logger) error {
 
 					err = p.KillWithContext(killCtx)
 					if err != nil {
-						logger.ErrorContext(killCtx, fmt.Sprintf("kill process: %v", err))
+						logger.ErrorContext(context.Background(), fmt.Sprintf("kill process: %v", err))
 					} else {
-						logger.DebugContext(killCtx, fmt.Sprintf("Chromium process %d killed", p.Pid))
+						logger.DebugContext(context.Background(), fmt.Sprintf("Chromium process %d killed", p.Pid))
 					}
 				}()
 			}
@@ -273,7 +266,7 @@ func (b *chromiumBrowser) Healthy(logger *slog.Logger) bool {
 		return err
 	}))
 	if err != nil {
-		logger.ErrorContext(ctx, fmt.Sprintf("browser health check failed: %s", err))
+		logger.ErrorContext(context.Background(), fmt.Sprintf("browser health check failed: %s", err))
 		return false
 	}
 
@@ -343,8 +336,9 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *slog.Logger, url strin
 		return errors.New("context has no deadline")
 	}
 
-	// We validate the "main" URL against our allowed / deny lists.
-	err := gotenberg.FilterDeadline(b.arguments.allowList, b.arguments.denyList, url, deadline)
+	// We validate the "main" URL against our allowed / deny lists, and
+	// against the IP-based outbound URL guard. See [gotenberg.FilterOutboundURL].
+	err := gotenberg.FilterOutboundURL(ctx, url, b.arguments.allowList, b.arguments.denyList, deadline)
 	if err != nil {
 		return fmt.Errorf("filter URL: %w", err)
 	}
@@ -363,9 +357,10 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *slog.Logger, url strin
 	// the extra HTTP headers, if any.
 	// See https://github.com/gotenberg/gotenberg/issues/1011.
 	listenForEventRequestPaused(taskCtx, logger, eventRequestPausedOptions{
-		allowList:        b.arguments.allowList,
-		denyList:         b.arguments.denyList,
-		extraHttpHeaders: options.ExtraHttpHeaders,
+		allowList:           b.arguments.allowList,
+		denyList:            b.arguments.denyList,
+		allowedFilePrefixes: options.AllowedFilePrefixes,
+		extraHttpHeaders:    options.ExtraHttpHeaders,
 	})
 
 	var (
@@ -388,6 +383,7 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *slog.Logger, url strin
 			ignoreResourceHttpStatusDomains: options.IgnoreResourceHttpStatusDomains,
 			invalidResourceHttpStatusCode:   &invalidResourceHttpStatusCode,
 			invalidResourceHttpStatusCodeMu: &invalidResourceHttpStatusCodeMu,
+			cancelOnMainPageError:           taskCancel,
 		})
 	}
 
@@ -417,30 +413,45 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *slog.Logger, url strin
 		loadingFailedMu:         &loadingFailedMu,
 		resourceLoadingFailed:   &resourceLoadingFailed,
 		resourceLoadingFailedMu: &resourceLoadingFailedMu,
+		cancelOnMainPageError:   taskCancel,
 	})
 
-	clientCtx, clientSpan := gotenberg.Tracer().Start(taskCtx, "cdp.execute",
-		trace.WithSpanKind(trace.SpanKindClient),
-		trace.WithAttributes(
-			semconv.ServerAddress("127.0.0.1"),
-			semconv.ServicePeerName("chromium"),
-			semconv.RPCSystemNameKey.String("cdp"),
-			// Legacy attribute for older APMs (Datadog, Jaeger) to draw the
-			// dependency graph.
-			attribute.String("peer.service", "chromium"),
-		),
-	)
+	runErr := chromedp.Run(taskCtx, tasks...)
 
-	err = chromedp.Run(clientCtx, tasks...)
-	if err != nil {
-		clientSpan.RecordError(err)
-		clientSpan.SetStatus(codes.Error, err.Error())
+	// Check event-driven errors first — they take priority over chromedp.Run
+	// errors because they carry the actual root cause (e.g., HTTP 500 from
+	// the main page). When we cancel taskCtx on a main page error,
+	// chromedp.Run returns a context error that is less informative.
+	// See https://github.com/gotenberg/gotenberg/issues/1492.
+
+	// See https://github.com/gotenberg/gotenberg/issues/613.
+	invalidHttpStatusCodeMu.RLock()
+	defer invalidHttpStatusCodeMu.RUnlock()
+
+	if invalidHttpStatusCode != nil {
+		return fmt.Errorf("%v: %w", invalidHttpStatusCode, ErrInvalidHttpStatusCode)
 	}
 
-	clientSpan.End()
+	// See https://github.com/gotenberg/gotenberg/issues/1021.
+	invalidResourceHttpStatusCodeMu.RLock()
+	defer invalidResourceHttpStatusCodeMu.RUnlock()
 
-	if err != nil {
-		errMessage := err.Error()
+	if invalidResourceHttpStatusCode != nil {
+		return fmt.Errorf("%v: %w", invalidResourceHttpStatusCode, ErrInvalidResourceHttpStatusCode)
+	}
+
+	// See:
+	// https://github.com/gotenberg/gotenberg/issues/913.
+	// https://github.com/gotenberg/gotenberg/issues/959.
+	loadingFailedMu.RLock()
+	defer loadingFailedMu.RUnlock()
+
+	if loadingFailed != nil {
+		return fmt.Errorf("%v: %w", loadingFailed, ErrLoadingFailed)
+	}
+
+	if runErr != nil {
+		errMessage := runErr.Error()
 
 		if strings.Contains(errMessage, "Printing failed (-32000)") {
 			return ErrPrintingFailed
@@ -462,23 +473,7 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *slog.Logger, url strin
 			return ErrRpccMessageTooLarge
 		}
 
-		return fmt.Errorf("handle tasks: %w", err)
-	}
-
-	// See https://github.com/gotenberg/gotenberg/issues/613.
-	invalidHttpStatusCodeMu.RLock()
-	defer invalidHttpStatusCodeMu.RUnlock()
-
-	if invalidHttpStatusCode != nil {
-		return fmt.Errorf("%v: %w", invalidHttpStatusCode, ErrInvalidHttpStatusCode)
-	}
-
-	// See https://github.com/gotenberg/gotenberg/issues/1021.
-	invalidResourceHttpStatusCodeMu.RLock()
-	defer invalidResourceHttpStatusCodeMu.RUnlock()
-
-	if invalidResourceHttpStatusCode != nil {
-		return fmt.Errorf("%v: %w", invalidResourceHttpStatusCode, ErrInvalidResourceHttpStatusCode)
+		return fmt.Errorf("handle tasks: %w", runErr)
 	}
 
 	// See https://github.com/gotenberg/gotenberg/issues/262.
@@ -489,16 +484,6 @@ func (b *chromiumBrowser) do(ctx context.Context, logger *slog.Logger, url strin
 		return fmt.Errorf("%v: %w", consoleExceptions, ErrConsoleExceptions)
 	}
 
-	// See:
-	// https://github.com/gotenberg/gotenberg/issues/913.
-	// https://github.com/gotenberg/gotenberg/issues/959.
-	loadingFailedMu.RLock()
-	defer loadingFailedMu.RUnlock()
-
-	if loadingFailed != nil {
-		return fmt.Errorf("%v: %w", loadingFailed, ErrLoadingFailed)
-	}
-
 	// See https://github.com/gotenberg/gotenberg/issues/1021.
 	if options.FailOnResourceLoadingFailed {
 		if resourceLoadingFailed != nil {

pkg/modules/chromium/chromium.go

@@ -18,6 +18,8 @@ import (
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
 	"go.opentelemetry.io/otel/metric"
+	semconv "go.opentelemetry.io/otel/semconv/v1.40.0"
+	"go.opentelemetry.io/otel/trace"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 	"github.com/gotenberg/gotenberg/v8/pkg/modules/api"
@@ -186,6 +188,12 @@ type Options struct {
 	// OmitBackground hides the default white background and allows generating
 	// PDFs with transparency.
 	OmitBackground bool
+
+	// AllowedFilePrefixes restricts file:// sub-resource access to only these
+	// directory prefixes. Applied in listenForEventRequestPaused in addition
+	// to the global allow/deny lists. Set internally by route handlers, not
+	// via form data.
+	AllowedFilePrefixes []string
 }
 
 // EmulatedMediaFeature gathers the available entries for emulating a media
@@ -283,7 +291,7 @@ type PdfOptions struct {
 	PreferCssPageSize bool
 
 	// GenerateDocumentOutline defines whether the document outline should be
-	// attached into the PDF.
+	// embedded into the PDF.
 	GenerateDocumentOutline bool
 
 	// GenerateTaggedPdf defines whether to generate tagged (accessible)
@@ -427,6 +435,7 @@ func (mod *Chromium) Descriptor() gotenberg.ModuleDescriptor {
 			fs := flag.NewFlagSet("chromium", flag.ExitOnError)
 			fs.Int64("chromium-restart-after", 100, "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.Duration("chromium-idle-shutdown-timeout", 0, "Shutdown Chromium after being idle for the given duration. Set to 0 to disable this feature")
 			fs.Int64("chromium-max-concurrency", 6, "Maximum number of concurrent conversions. Chromium supports up to 6")
 			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")
@@ -436,13 +445,20 @@ func (mod *Chromium) Descriptor() gotenberg.ModuleDescriptor {
 			fs.Bool("chromium-allow-file-access-from-files", false, "Allow file:// URIs to read other file:// URIs")
 			fs.String("chromium-host-resolver-rules", "", "Set custom mappings to the host resolver")
 			fs.String("chromium-proxy-server", "", "Set the outbound proxy server; this switch only affects HTTP and HTTPS requests")
-			fs.String("chromium-allow-list", "", "Set the allowed URLs for Chromium using a regular expression")
-			fs.String("chromium-deny-list", `^file:(?!//\/tmp/).*`, "Set the denied URLs for Chromium using a regular expression")
+			fs.StringSlice("chromium-allow-list", []string{}, "Set the allowed URLs for Chromium using regular expressions - supports multiple values")
+			fs.StringSlice("chromium-deny-list", []string{`^file:(?!//\/tmp/).*`}, "Set the denied URLs for Chromium using regular expressions - supports multiple values")
 			fs.Bool("chromium-clear-cache", false, "Clear Chromium cache between each conversion")
 			fs.Bool("chromium-clear-cookies", false, "Clear Chromium cookies between each conversion")
 			fs.Bool("chromium-disable-javascript", false, "Disable JavaScript")
 			fs.Bool("chromium-disable-routes", false, "Disable the routes")
 
+			// Deprecated flags.
+			fs.Bool("chromium-incognito", false, "Start Chromium with incognito mode")
+			err := fs.MarkDeprecated("chromium-incognito", "this flag is ignored as it provides no benefits")
+			if err != nil {
+				panic(err)
+			}
+
 			return fs
 		}(),
 		New: func() gotenberg.Module { return new(Chromium) },
@@ -477,8 +493,8 @@ func (mod *Chromium) Provision(ctx *gotenberg.Context) error {
 		wsUrlReadTimeout:         flags.MustDuration("chromium-start-timeout"),
 		hyphenDataDirPath:        hyphenDataDirPath,
 
-		allowList:         flags.MustRegexp("chromium-allow-list"),
-		denyList:          flags.MustRegexp("chromium-deny-list"),
+		allowList:         flags.MustRegexpSlice("chromium-allow-list"),
+		denyList:          flags.MustRegexpSlice("chromium-deny-list"),
 		clearCache:        flags.MustBool("chromium-clear-cache"),
 		clearCookies:      flags.MustBool("chromium-clear-cookies"),
 		disableJavaScript: flags.MustBool("chromium-disable-javascript"),
@@ -489,7 +505,7 @@ func (mod *Chromium) Provision(ctx *gotenberg.Context) error {
 
 	// Process.
 	mod.browser = newChromiumBrowser(mod.args)
-	mod.supervisor = gotenberg.NewProcessSupervisor(mod.logger, mod.browser, flags.MustInt64("chromium-restart-after"), flags.MustInt64("chromium-max-queue-size"), mod.maxConcurrency)
+	mod.supervisor = gotenberg.NewProcessSupervisor(mod.logger, mod.browser, flags.MustInt64("chromium-restart-after"), flags.MustInt64("chromium-max-queue-size"), mod.maxConcurrency, flags.MustDuration("chromium-idle-shutdown-timeout"))
 
 	// PDF Engine.
 	provider, err := ctx.Module(new(gotenberg.PdfEngineProvider))
@@ -502,104 +518,107 @@ func (mod *Chromium) Provision(ctx *gotenberg.Context) error {
 	}
 	mod.engine = engine
 
-	// OpenTelemetry.
+	// Metrics.
 	meter := gotenberg.Meter()
-	_, err = meter.Int64ObservableCounter(
-		"chromium.process.restarts.total",
-		metric.WithDescription("Current number of Chromium restarts."),
-		metric.WithUnit("{restart}"),
+
+	// Observable gauges.
+	_, err = meter.Int64ObservableGauge(
+		"chromium.requests.active",
+		metric.WithDescription("Current number of active Chromium requests"),
+		metric.WithUnit("{request}"),
 		metric.WithInt64Callback(func(_ context.Context, o metric.Int64Observer) error {
-			val := mod.supervisor.RestartsCount()
-			o.Observe(val)
+			o.Observe(mod.supervisor.ActiveTasksCount())
 			return nil
 		}),
 	)
 	if err != nil {
-		return fmt.Errorf("create process restarts observable counter: %w", err)
+		return fmt.Errorf("create chromium.requests.active gauge: %w", err)
 	}
 
 	_, err = meter.Int64ObservableGauge(
 		"chromium.requests.queue_size",
-		metric.WithDescription("Current number of Chromium conversion requests waiting to be treated."),
+		metric.WithDescription("Current number of Chromium conversion requests waiting to be treated"),
 		metric.WithUnit("{request}"),
 		metric.WithInt64Callback(func(_ context.Context, o metric.Int64Observer) error {
-			val := mod.supervisor.ReqQueueSize()
-			o.Observe(val)
+			o.Observe(mod.supervisor.ReqQueueSize())
 			return nil
 		}),
 	)
 	if err != nil {
-		return fmt.Errorf("create requests queue size observable gauge: %w", err)
+		return fmt.Errorf("create chromium.requests.queue_size gauge: %w", err)
 	}
 
-	_, err = meter.Int64ObservableGauge(
-		"chromium.requests.active",
-		metric.WithDescription("Current number of Chromium conversion requests actively being processed."),
-		metric.WithUnit("{request}"),
+	_, err = meter.Int64ObservableCounter(
+		"chromium.process.restarts.total",
+		metric.WithDescription("Current number of Chromium restarts"),
+		metric.WithUnit("{restart}"),
 		metric.WithInt64Callback(func(_ context.Context, o metric.Int64Observer) error {
-			val := mod.supervisor.ActiveTasksCount()
-			o.Observe(val)
+			o.Observe(mod.supervisor.RestartsCount())
 			return nil
 		}),
 	)
 	if err != nil {
-		return fmt.Errorf("create requests active observable gauge: %w", err)
+		return fmt.Errorf("create chromium.process.restarts.total counter: %w", err)
 	}
 
+	// Counters.
 	mod.reqsCounter, err = meter.Int64Counter(
 		"chromium.requests.total",
-		metric.WithDescription("Total number of Chromium conversion requests."),
+		metric.WithDescription("Total number of Chromium conversion requests"),
 		metric.WithUnit("{request}"),
 	)
 	if err != nil {
-		return fmt.Errorf("create requests total counter: %w", err)
+		return fmt.Errorf("create chromium.requests.total counter: %w", err)
 	}
 
 	mod.errsCounter, err = meter.Int64Counter(
 		"chromium.errors.total",
-		metric.WithDescription("Total number of Chromium errors."),
+		metric.WithDescription("Total number of Chromium conversion errors"),
 		metric.WithUnit("{error}"),
 	)
 	if err != nil {
-		return fmt.Errorf("create errors total counter: %w", err)
+		return fmt.Errorf("create chromium.errors.total counter: %w", err)
 	}
 
+	// Histograms.
+	durationBuckets := metric.WithExplicitBucketBoundaries(0.5, 1, 2, 5, 10, 30, 60)
+
 	mod.conversionDurationCounter, err = meter.Float64Histogram(
 		"chromium.conversion.duration",
-		metric.WithDescription("Duration of each HTML-to-PDF conversion."),
+		metric.WithDescription("Duration of Chromium conversions"),
 		metric.WithUnit("s"),
-		metric.WithExplicitBucketBoundaries(0.5, 1, 2, 5, 10, 30, 60),
+		durationBuckets,
 	)
 	if err != nil {
-		return fmt.Errorf("create conversion duration histogram: %w", err)
+		return fmt.Errorf("create chromium.conversion.duration histogram: %w", err)
 	}
 
 	mod.queueWaitDurationCounter, err = meter.Float64Histogram(
 		"chromium.queue.wait.duration",
-		metric.WithDescription("Time a request spends waiting in the queue before processing starts."),
+		metric.WithDescription("Duration of waiting in queue for Chromium conversions"),
 		metric.WithUnit("s"),
-		metric.WithExplicitBucketBoundaries(0.5, 1, 2, 5, 10, 30, 60),
+		durationBuckets,
 	)
 	if err != nil {
-		return fmt.Errorf("create queue wait duration histogram: %w", err)
+		return fmt.Errorf("create chromium.queue.wait.duration histogram: %w", err)
 	}
 
 	mod.pdfOutputSizeCounter, err = meter.Int64Histogram(
 		"chromium.pdf.output.size",
-		metric.WithDescription("Size of the generated PDF files."),
+		metric.WithDescription("Size of PDF output from Chromium conversions"),
 		metric.WithUnit("By"),
 	)
 	if err != nil {
-		return fmt.Errorf("create pdf output size histogram: %w", err)
+		return fmt.Errorf("create chromium.pdf.output.size histogram: %w", err)
 	}
 
 	mod.imageOutputSizeCounter, err = meter.Int64Histogram(
 		"chromium.image.output.size",
-		metric.WithDescription("Size of the generated image files."),
+		metric.WithDescription("Size of image output from Chromium screenshots"),
 		metric.WithUnit("By"),
 	)
 	if err != nil {
-		return fmt.Errorf("create image output size histogram: %w", err)
+		return fmt.Errorf("create chromium.image.output.size histogram: %w", err)
 	}
 
 	return nil
@@ -681,6 +700,26 @@ func (mod *Chromium) Debug() map[string]any {
 	return debug
 }
 
+// Metrics returns the metrics.
+func (mod *Chromium) Metrics() ([]gotenberg.Metric, error) {
+	return []gotenberg.Metric{
+		{
+			Name:        "chromium_requests_queue_size",
+			Description: "Current number of Chromium conversion requests waiting to be treated.",
+			Read: func() float64 {
+				return float64(mod.supervisor.ReqQueueSize())
+			},
+		},
+		{
+			Name:        "chromium_restarts_count",
+			Description: "Current number of Chromium restarts.",
+			Read: func() float64 {
+				return float64(mod.supervisor.RestartsCount())
+			},
+		},
+	}, nil
+}
+
 // Checks adds a health check that verifies if Chromium is healthy.
 func (mod *Chromium) Checks() ([]health.CheckerOption, error) {
 	return []health.CheckerOption{
@@ -749,9 +788,10 @@ func (mod *Chromium) Routes() ([]api.Route, error) {
 
 // Pdf converts a URL to PDF.
 func (mod *Chromium) Pdf(ctx context.Context, logger *slog.Logger, url, outputPath string, options PdfOptions) error {
-	// Note: no error wrapping because it leaks on errors we want to display to
-	// the end user.
-	ctx, span := gotenberg.Tracer().Start(ctx, "Chromium.Pdf")
+	ctx, span := gotenberg.Tracer().Start(ctx, "chromium.Pdf",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(mod.args.binPath)),
+	)
 	defer span.End()
 
 	start := time.Now()
@@ -772,17 +812,15 @@ func (mod *Chromium) Pdf(ctx context.Context, logger *slog.Logger, url, outputPa
 			status = "error"
 		}
 
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-
 		reason := "unknown"
-		if errors.Is(err, context.DeadlineExceeded) {
+		switch {
+		case errors.Is(err, context.DeadlineExceeded):
 			reason = "timeout"
-		} else if errors.Is(err, context.Canceled) {
+		case errors.Is(err, context.Canceled):
 			reason = "context_cancelled"
-		} else if errors.Is(err, ErrInvalidHttpStatusCode) || errors.Is(err, ErrInvalidResourceHttpStatusCode) || errors.Is(err, ErrLoadingFailed) || errors.Is(err, ErrResourceLoadingFailed) || errors.Is(err, ErrInvalidEvaluationExpression) || errors.Is(err, ErrInvalidSelectorQuery) {
+		case errors.Is(err, ErrInvalidHttpStatusCode) || errors.Is(err, ErrInvalidResourceHttpStatusCode) || errors.Is(err, ErrLoadingFailed) || errors.Is(err, ErrResourceLoadingFailed) || errors.Is(err, ErrInvalidEvaluationExpression) || errors.Is(err, ErrInvalidSelectorQuery):
 			reason = "invalid_input"
-		} else if errors.Is(err, gotenberg.ErrMaximumQueueSizeExceeded) || errors.Is(err, gotenberg.ErrProcessAlreadyRestarting) {
+		case errors.Is(err, gotenberg.ErrMaximumQueueSizeExceeded) || errors.Is(err, gotenberg.ErrProcessAlreadyRestarting):
 			reason = "chromium_unavailable"
 		}
 
@@ -816,15 +854,21 @@ func (mod *Chromium) Pdf(ctx context.Context, logger *slog.Logger, url, outputPa
 		if fileInfo, statErr := os.Stat(outputPath); statErr == nil {
 			mod.pdfOutputSizeCounter.Record(ctx, fileInfo.Size())
 		}
+
+		span.SetStatus(codes.Ok, "")
+		return nil
 	}
 
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return err
 }
 
 func (mod *Chromium) Screenshot(ctx context.Context, logger *slog.Logger, url, outputPath string, options ScreenshotOptions) error {
-	// Note: no error wrapping because it leaks on errors we want to display to
-	// the end user.
-	ctx, span := gotenberg.Tracer().Start(ctx, "Chromium.Screenshot")
+	ctx, span := gotenberg.Tracer().Start(ctx, "chromium.Screenshot",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(mod.args.binPath)),
+	)
 	defer span.End()
 
 	start := time.Now()
@@ -845,19 +889,17 @@ func (mod *Chromium) Screenshot(ctx context.Context, logger *slog.Logger, url, o
 			status = "error"
 		}
 
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-
 		reason := "unknown"
-		if errors.Is(err, context.DeadlineExceeded) {
+		switch {
+		case errors.Is(err, context.DeadlineExceeded):
 			reason = "timeout"
-		} else if errors.Is(err, context.Canceled) {
+		case errors.Is(err, context.Canceled):
 			reason = "context_cancelled"
-		} else if errors.Is(err, ErrInvalidHttpStatusCode) || errors.Is(err, ErrInvalidResourceHttpStatusCode) || errors.Is(err, ErrLoadingFailed) || errors.Is(err, ErrResourceLoadingFailed) || errors.Is(err, ErrInvalidEvaluationExpression) || errors.Is(err, ErrInvalidSelectorQuery) {
+		case errors.Is(err, ErrInvalidHttpStatusCode) || errors.Is(err, ErrInvalidResourceHttpStatusCode) || errors.Is(err, ErrLoadingFailed) || errors.Is(err, ErrResourceLoadingFailed) || errors.Is(err, ErrInvalidEvaluationExpression) || errors.Is(err, ErrInvalidSelectorQuery):
 			reason = "invalid_input"
-		} else if errors.Is(err, gotenberg.ErrMaximumQueueSizeExceeded) {
+		case errors.Is(err, gotenberg.ErrMaximumQueueSizeExceeded):
 			reason = "chromium_maximum_queue_size_exceeded"
-		} else if errors.Is(err, gotenberg.ErrProcessAlreadyRestarting) {
+		case errors.Is(err, gotenberg.ErrProcessAlreadyRestarting):
 			reason = "chromium_unavailable"
 		}
 
@@ -891,20 +933,26 @@ func (mod *Chromium) Screenshot(ctx context.Context, logger *slog.Logger, url, o
 		if fileInfo, statErr := os.Stat(outputPath); statErr == nil {
 			mod.imageOutputSizeCounter.Record(ctx, fileInfo.Size())
 		}
+
+		span.SetStatus(codes.Ok, "")
+		return nil
 	}
 
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return err
 }
 
 // Interface guards.
 var (
-	_ gotenberg.Module      = (*Chromium)(nil)
-	_ gotenberg.Provisioner = (*Chromium)(nil)
-	_ gotenberg.Validator   = (*Chromium)(nil)
-	_ gotenberg.App         = (*Chromium)(nil)
-	_ gotenberg.Debuggable  = (*Chromium)(nil)
-	_ api.HealthChecker     = (*Chromium)(nil)
-	_ api.Router            = (*Chromium)(nil)
-	_ Api                   = (*Chromium)(nil)
-	_ Provider              = (*Chromium)(nil)
+	_ gotenberg.Module          = (*Chromium)(nil)
+	_ 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)
+	_ Api                       = (*Chromium)(nil)
+	_ Provider                  = (*Chromium)(nil)
 )

pkg/modules/chromium/debug.go

@@ -10,20 +10,19 @@ import (
 // debugLogger is wrapper around a [slog.Logger] which is used for debugging
 // Chromium.
 type debugLogger struct {
-	ctx    context.Context
 	logger *slog.Logger
 }
 
 // Write logs the bytes in a debug message.
 func (debug *debugLogger) Write(p []byte) (n int, err error) {
-	debug.logger.DebugContext(debug.ctx, string(p))
+	debug.logger.DebugContext(context.Background(), string(p))
 
 	return len(p), nil
 }
 
 // Printf logs a debug message.
 func (debug *debugLogger) Printf(format string, v ...any) {
-	debug.logger.DebugContext(debug.ctx, fmt.Sprintf(format, v...))
+	debug.logger.DebugContext(context.Background(), fmt.Sprintf(format, v...))
 }
 
 // Interface guards.

pkg/modules/chromium/doc.go

@@ -1,4 +1,3 @@
-// Package chromium provides a module which adds routes for converting HTML
-// documents to PDF. Other modules may also retrieve the [Api] provided by this
-// module.
+// Package chromium adds routes for converting HTML documents to PDF. Exposes
+// an [Api] for other modules.
 package chromium

pkg/modules/chromium/events.go

@@ -2,6 +2,7 @@ package chromium
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"log/slog"
 	"net/http"
@@ -17,14 +18,14 @@ import (
 	"github.com/chromedp/cdproto/runtime"
 	"github.com/chromedp/chromedp"
 	"github.com/dlclark/regexp2"
-	"go.uber.org/multierr"
 	"golang.org/x/sync/errgroup"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 )
 
 type eventRequestPausedOptions struct {
-	allowList, denyList *regexp2.Regexp
+	allowList, denyList []*regexp2.Regexp
+	allowedFilePrefixes []string
 	extraHttpHeaders    []ExtraHttpHeader
 }
 
@@ -40,8 +41,7 @@ func listenForEventRequestPaused(ctx context.Context, logger *slog.Logger, optio
 	}
 
 	chromedp.ListenTarget(ctx, func(ev any) {
-		switch e := ev.(type) {
-		case *fetch.EventRequestPaused:
+		if e, ok := ev.(*fetch.EventRequestPaused); ok {
 			go func() {
 				logger.DebugContext(ctx, fmt.Sprintf("event EventRequestPaused fired for '%s'", e.Request.URL))
 				allow := true
@@ -52,16 +52,44 @@ func listenForEventRequestPaused(ctx context.Context, logger *slog.Logger, optio
 					return
 				}
 
-				err := gotenberg.FilterDeadline(options.allowList, options.denyList, e.Request.URL, deadline)
+				err := gotenberg.FilterOutboundURL(ctx, e.Request.URL, options.allowList, options.denyList, deadline)
 				if err != nil {
 					logger.WarnContext(ctx, err.Error())
 					allow = false
 				}
 
+				// Additional restriction: if the sub-resource is a file:// URL
+				// and we have allowed file prefixes, restrict access to only
+				// those directories. This prevents cross-request file access
+				// in /tmp.
+				if allow && strings.HasPrefix(e.Request.URL, "file://") && len(options.allowedFilePrefixes) > 0 {
+					prefixMatch := false
+					for _, prefix := range options.allowedFilePrefixes {
+						if strings.HasPrefix(e.Request.URL, "file://"+prefix) {
+							prefixMatch = true
+							break
+						}
+					}
+
+					if !prefixMatch {
+						logger.WarnContext(ctx, fmt.Sprintf("'%s' is not within any allowed file prefix", e.Request.URL))
+						allow = false
+					}
+				}
+
 				cctx := chromedp.FromContext(ctx)
 				executorCtx := cdp.WithExecutor(ctx, cctx.Target)
 
 				if !allow {
+					// Use AccessDenied so Chromium emits net::ERR_ACCESS_DENIED,
+					// which is intentionally absent from the EventLoadingFailed
+					// known-errors list. Routing through BlockedByClient would
+					// surface the failure, but the Document-type dispatcher in
+					// listenForEventLoadingFailed cannot distinguish a blocked
+					// iframe (sub-frame Document) from a main-page Document, and
+					// would attribute the iframe failure to the main page.
+					// Filter-block observability is provided by the warn log
+					// above instead.
 					req := fetch.FailRequest(e.RequestID, network.ErrorReasonAccessDenied)
 					err = req.Do(executorCtx)
 					if err != nil {
@@ -87,12 +115,13 @@ func listenForEventRequestPaused(ctx context.Context, logger *slog.Logger, optio
 						}
 
 						ok, err := header.Scope.MatchString(e.Request.URL)
-						if err != nil {
+						switch {
+						case err != nil:
 							logger.ErrorContext(ctx, fmt.Sprintf("fail to match extra HTTP header '%s' scope with URL '%s': %s", header.Name, e.Request.URL, err))
-						} else if ok {
+						case ok:
 							logger.DebugContext(ctx, fmt.Sprintf("extra HTTP header '%s' (scoped) will be set for request URL '%s'", header.Name, e.Request.URL))
 							extraHttpHeadersToSet = append(extraHttpHeadersToSet, header)
-						} else {
+						default:
 							logger.DebugContext(ctx, fmt.Sprintf("scoped extra HTTP header '%s' (scoped) will not be set for request URL '%s'", header.Name, e.Request.URL))
 						}
 					}
@@ -148,6 +177,7 @@ type eventResponseReceivedOptions struct {
 	ignoreResourceHttpStatusDomains []string
 	invalidResourceHttpStatusCode   *error
 	invalidResourceHttpStatusCodeMu *sync.RWMutex
+	cancelOnMainPageError           context.CancelFunc
 }
 
 // listenForEventResponseReceived listens for an invalid HTTP status code
@@ -177,8 +207,7 @@ func listenForEventResponseReceived(
 	}
 
 	chromedp.ListenTarget(ctx, func(ev any) {
-		switch ev := ev.(type) {
-		case *network.EventResponseReceived:
+		if ev, ok := ev.(*network.EventResponseReceived); ok {
 			if ev.Response.URL == options.mainPageUrl {
 				logger.DebugContext(ctx, fmt.Sprintf("event EventResponseReceived fired for main page: %+v", ev.Response))
 
@@ -187,6 +216,14 @@ func listenForEventResponseReceived(
 					defer options.invalidHttpStatusCodeMu.Unlock()
 
 					*options.invalidHttpStatusCode = fmt.Errorf("%d: %s", ev.Response.Status, ev.Response.StatusText)
+
+					// Cancel the task context so that any in-flight wait
+					// operations (waitForSelector, waitForExpression, etc.)
+					// abort immediately instead of polling until timeout.
+					// See https://github.com/gotenberg/gotenberg/issues/1492.
+					if options.cancelOnMainPageError != nil {
+						options.cancelOnMainPageError()
+					}
 				}
 
 				return
@@ -203,7 +240,7 @@ func listenForEventResponseReceived(
 				options.invalidResourceHttpStatusCodeMu.Lock()
 				defer options.invalidResourceHttpStatusCodeMu.Unlock()
 
-				*options.invalidResourceHttpStatusCode = multierr.Append(
+				*options.invalidResourceHttpStatusCode = errors.Join(
 					*options.invalidResourceHttpStatusCode,
 					fmt.Errorf("%s - %d: %s", ev.Response.URL, ev.Response.Status, http.StatusText(int(ev.Response.Status))),
 				)
@@ -290,6 +327,7 @@ type eventLoadingFailedOptions struct {
 	loadingFailedMu         *sync.RWMutex
 	resourceLoadingFailed   *error
 	resourceLoadingFailedMu *sync.RWMutex
+	cancelOnMainPageError   context.CancelFunc
 }
 
 // listenForEventLoadingFailed listens for an event indicating that the main
@@ -300,13 +338,12 @@ type eventLoadingFailedOptions struct {
 // https://github.com/gotenberg/gotenberg/issues/1021.
 func listenForEventLoadingFailed(ctx context.Context, logger *slog.Logger, options eventLoadingFailedOptions) {
 	chromedp.ListenTarget(ctx, func(ev any) {
-		switch ev := ev.(type) {
-		case *network.EventLoadingFailed:
+		if ev, ok := ev.(*network.EventLoadingFailed); ok {
 			logger.DebugContext(ctx, fmt.Sprintf("event EventLoadingFailed fired: %+v", ev.ErrorText))
 
 			// We are looking for common errors.
 			// TODO: sufficient?
-			errors := []string{
+			knownErrors := []string{
 				"net::ERR_CONNECTION_CLOSED",
 				"net::ERR_CONNECTION_RESET",
 				"net::ERR_CONNECTION_REFUSED",
@@ -320,8 +357,8 @@ func listenForEventLoadingFailed(ctx context.Context, logger *slog.Logger, optio
 				"net::ERR_FILE_NOT_FOUND",
 				"net::ERR_HTTP2_PROTOCOL_ERROR",
 			}
-			if !slices.Contains(errors, ev.ErrorText) {
-				logger.DebugContext(ctx, fmt.Sprintf("skip EventLoadingFailed: '%s' is not part of %+v", ev.ErrorText, errors))
+			if !slices.Contains(knownErrors, ev.ErrorText) {
+				logger.DebugContext(ctx, fmt.Sprintf("skip EventLoadingFailed: '%s' is not part of %+v", ev.ErrorText, knownErrors))
 				return
 			}
 
@@ -335,6 +372,13 @@ func listenForEventLoadingFailed(ctx context.Context, logger *slog.Logger, optio
 
 				*options.loadingFailed = fmt.Errorf("%s", ev.ErrorText)
 
+				// Cancel the task context so that any in-flight wait
+				// operations abort immediately.
+				// See https://github.com/gotenberg/gotenberg/issues/1492.
+				if options.cancelOnMainPageError != nil {
+					options.cancelOnMainPageError()
+				}
+
 				return
 			}
 
@@ -343,7 +387,7 @@ func listenForEventLoadingFailed(ctx context.Context, logger *slog.Logger, optio
 			options.resourceLoadingFailedMu.Lock()
 			defer options.resourceLoadingFailedMu.Unlock()
 
-			*options.resourceLoadingFailed = multierr.Append(
+			*options.resourceLoadingFailed = errors.Join(
 				*options.resourceLoadingFailed,
 				fmt.Errorf("resource %s: %s", ev.Type, ev.ErrorText),
 			)
@@ -356,14 +400,13 @@ func listenForEventLoadingFailed(ctx context.Context, logger *slog.Logger, optio
 // See https://github.com/gotenberg/gotenberg/issues/262.
 func listenForEventExceptionThrown(ctx context.Context, logger *slog.Logger, consoleExceptions *error, consoleExceptionsMu *sync.RWMutex) {
 	chromedp.ListenTarget(ctx, func(ev any) {
-		switch ev := ev.(type) {
-		case *runtime.EventExceptionThrown:
+		if ev, ok := ev.(*runtime.EventExceptionThrown); ok {
 			logger.DebugContext(ctx, fmt.Sprintf("event EventExceptionThrown fired: %+v", ev.ExceptionDetails))
 
 			consoleExceptionsMu.Lock()
 			defer consoleExceptionsMu.Unlock()
 
-			*consoleExceptions = multierr.Append(*consoleExceptions, fmt.Errorf("\n%+v", ev.ExceptionDetails))
+			*consoleExceptions = errors.Join(*consoleExceptions, fmt.Errorf("\n%+v", ev.ExceptionDetails))
 		}
 	})
 }
@@ -375,8 +418,7 @@ func waitForEventDomContentEventFired(ctx context.Context, logger *slog.Logger)
 		ch := make(chan struct{})
 		cctx, cancel := context.WithCancel(ctx)
 		chromedp.ListenTarget(cctx, func(ev any) {
-			switch ev.(type) {
-			case *page.EventDomContentEventFired:
+			if _, ok := ev.(*page.EventDomContentEventFired); ok {
 				cancel()
 				close(ch)
 			}
@@ -399,8 +441,7 @@ func waitForEventLoadEventFired(ctx context.Context, logger *slog.Logger) func()
 		ch := make(chan struct{})
 		cctx, cancel := context.WithCancel(ctx)
 		chromedp.ListenTarget(cctx, func(ev any) {
-			switch ev.(type) {
-			case *page.EventLoadEventFired:
+			if _, ok := ev.(*page.EventLoadEventFired); ok {
 				cancel()
 				close(ch)
 			}
@@ -423,12 +464,9 @@ func waitForEventNetworkIdle(ctx context.Context, logger *slog.Logger) func() er
 		ch := make(chan struct{})
 		cctx, cancel := context.WithCancel(ctx)
 		chromedp.ListenTarget(cctx, func(ev any) {
-			switch e := ev.(type) {
-			case *page.EventLifecycleEvent:
-				if e.Name == "networkIdle" {
-					cancel()
-					close(ch)
-				}
+			if e, ok := ev.(*page.EventLifecycleEvent); ok && e.Name == "networkIdle" {
+				cancel()
+				close(ch)
 			}
 		})
 
@@ -449,12 +487,9 @@ func waitForEventNetworkAlmostIdle(ctx context.Context, logger *slog.Logger) fun
 		ch := make(chan struct{})
 		cctx, cancel := context.WithCancel(ctx)
 		chromedp.ListenTarget(cctx, func(ev any) {
-			switch e := ev.(type) {
-			case *page.EventLifecycleEvent:
-				if e.Name == "networkIdle2" {
-					cancel()
-					close(ch)
-				}
+			if e, ok := ev.(*page.EventLifecycleEvent); ok && e.Name == "networkIdle2" {
+				cancel()
+				close(ch)
 			}
 		})
 
@@ -475,8 +510,7 @@ func waitForEventLoadingFinished(ctx context.Context, logger *slog.Logger) func(
 		ch := make(chan struct{})
 		cctx, cancel := context.WithCancel(ctx)
 		chromedp.ListenTarget(cctx, func(ev any) {
-			switch ev.(type) {
-			case *network.EventLoadingFinished:
+			if _, ok := ev.(*network.EventLoadingFinished); ok {
 				cancel()
 				close(ch)
 			}

pkg/modules/chromium/routes.go

@@ -17,7 +17,6 @@ import (
 	"github.com/gomarkdown/markdown"
 	"github.com/labstack/echo/v4"
 	"github.com/microcosm-cc/bluemonday"
-	"go.uber.org/multierr"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 	"github.com/gotenberg/gotenberg/v8/pkg/modules/api"
@@ -150,7 +149,7 @@ func FormDataChromiumOptions(ctx *api.Context) (*api.FormData, Options) {
 
 			for i, cookie := range cookies {
 				if strings.TrimSpace(cookie.Name) == "" || strings.TrimSpace(cookie.Value) == "" || strings.TrimSpace(cookie.Domain) == "" {
-					err = multierr.Append(err, fmt.Errorf("cookie %d must have its name, value and domain set", i))
+					err = errors.Join(err, fmt.Errorf("cookie %d must have its name, value and domain set", i))
 				}
 			}
 
@@ -183,14 +182,12 @@ func FormDataChromiumOptions(ctx *api.Context) (*api.FormData, Options) {
 						if len(parts) == 2 && strings.ToLower(parts[0]) == "scope" && parts[1] != "" {
 							scope = parts[1]
 						} else {
-							err = multierr.Append(err, fmt.Errorf("invalid scope '%s' for header '%s'", scope, k))
+							err = errors.Join(err, fmt.Errorf("invalid scope '%s' for header '%s'", scope, k))
 							invalidScopeToken = true
 							break
 						}
-					} else {
-						if token != "" {
-							valueTokens = append(valueTokens, token)
-						}
+					} else if token != "" {
+						valueTokens = append(valueTokens, token)
 					}
 				}
 
@@ -202,9 +199,10 @@ func FormDataChromiumOptions(ctx *api.Context) (*api.FormData, Options) {
 				if len(scope) > 0 {
 					p, errCompile := regexp2.Compile(scope, regexp2.None)
 					if errCompile != nil {
-						err = multierr.Append(err, fmt.Errorf("invalid scope regex pattern for header '%s': %w", k, errCompile))
+						err = errors.Join(err, fmt.Errorf("invalid scope regex pattern for header '%s': %w", k, errCompile))
 						continue
 					}
+					p.MatchTimeout = 5 * time.Second
 					scopeRegexp = p
 				}
 
@@ -417,7 +415,13 @@ func convertUrlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 			pdfFormats := pdfengines.FormDataPdfFormats(form)
 			metadata := pdfengines.FormDataPdfMetadata(form, false)
 			userPassword, ownerPassword := pdfengines.FormDataPdfEncrypt(form)
-			attachmentsPaths := pdfengines.FormDataPdfAttachments(form)
+			embedPaths := pdfengines.FormDataPdfEmbeds(form)
+			watermark := pdfengines.FormDataPdfWatermark(form, false)
+			watermarkFile := pdfengines.FormDataPdfWatermarkFile(form)
+			stamp := pdfengines.FormDataPdfStamp(form, false)
+			stampFile := pdfengines.FormDataPdfStampFile(form)
+			rotateAngle, rotatePages := pdfengines.FormDataPdfRotate(form, false)
+			embedsMetadata := pdfengines.FormDataPdfEmbedsMetadata(form)
 
 			var url string
 			err := form.
@@ -427,7 +431,14 @@ func convertUrlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 				return fmt.Errorf("validate form data: %w", err)
 			}
 
-			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata, userPassword, ownerPassword, attachmentsPaths)
+			if (watermark.Source == gotenberg.StampSourceImage || watermark.Source == gotenberg.StampSourcePDF) && watermarkFile != "" {
+				watermark.Expression = watermarkFile
+			}
+			if (stamp.Source == gotenberg.StampSourceImage || stamp.Source == gotenberg.StampSourcePDF) && stampFile != "" {
+				stamp.Expression = stampFile
+			}
+
+			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata, userPassword, ownerPassword, embedPaths, embedsMetadata, watermark, stamp, rotateAngle, rotatePages)
 			if err != nil {
 				return fmt.Errorf("convert URL to PDF: %w", err)
 			}
@@ -480,7 +491,13 @@ func convertHtmlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 			pdfFormats := pdfengines.FormDataPdfFormats(form)
 			metadata := pdfengines.FormDataPdfMetadata(form, false)
 			userPassword, ownerPassword := pdfengines.FormDataPdfEncrypt(form)
-			attachmentsPaths := pdfengines.FormDataPdfAttachments(form)
+			embedPaths := pdfengines.FormDataPdfEmbeds(form)
+			watermark := pdfengines.FormDataPdfWatermark(form, false)
+			watermarkFile := pdfengines.FormDataPdfWatermarkFile(form)
+			stamp := pdfengines.FormDataPdfStamp(form, false)
+			stampFile := pdfengines.FormDataPdfStampFile(form)
+			rotateAngle, rotatePages := pdfengines.FormDataPdfRotate(form, false)
+			embedsMetadata := pdfengines.FormDataPdfEmbedsMetadata(form)
 
 			var inputPath string
 			err := form.
@@ -490,8 +507,16 @@ func convertHtmlRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 				return fmt.Errorf("validate form data: %w", err)
 			}
 
+			if (watermark.Source == gotenberg.StampSourceImage || watermark.Source == gotenberg.StampSourcePDF) && watermarkFile != "" {
+				watermark.Expression = watermarkFile
+			}
+			if (stamp.Source == gotenberg.StampSourceImage || stamp.Source == gotenberg.StampSourcePDF) && stampFile != "" {
+				stamp.Expression = stampFile
+			}
+
 			url := fmt.Sprintf("file://%s", inputPath)
-			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata, userPassword, ownerPassword, attachmentsPaths)
+			options.AllowedFilePrefixes = []string{ctx.DirPath()}
+			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata, userPassword, ownerPassword, embedPaths, embedsMetadata, watermark, stamp, rotateAngle, rotatePages)
 			if err != nil {
 				return fmt.Errorf("convert HTML to PDF: %w", err)
 			}
@@ -521,6 +546,7 @@ func screenshotHtmlRoute(chromium Api) api.Route {
 			}
 
 			url := fmt.Sprintf("file://%s", inputPath)
+			options.AllowedFilePrefixes = []string{ctx.DirPath()}
 			err = screenshotUrl(ctx, chromium, url, options)
 			if err != nil {
 				return fmt.Errorf("HTML screenshot: %w", err)
@@ -545,7 +571,13 @@ func convertMarkdownRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 			pdfFormats := pdfengines.FormDataPdfFormats(form)
 			metadata := pdfengines.FormDataPdfMetadata(form, false)
 			userPassword, ownerPassword := pdfengines.FormDataPdfEncrypt(form)
-			attachmentsPaths := pdfengines.FormDataPdfAttachments(form)
+			embedPaths := pdfengines.FormDataPdfEmbeds(form)
+			watermark := pdfengines.FormDataPdfWatermark(form, false)
+			watermarkFile := pdfengines.FormDataPdfWatermarkFile(form)
+			stamp := pdfengines.FormDataPdfStamp(form, false)
+			stampFile := pdfengines.FormDataPdfStampFile(form)
+			rotateAngle, rotatePages := pdfengines.FormDataPdfRotate(form, false)
+			embedsMetadata := pdfengines.FormDataPdfEmbedsMetadata(form)
 
 			var (
 				inputPath     string
@@ -560,12 +592,20 @@ func convertMarkdownRoute(chromium Api, engine gotenberg.PdfEngine) api.Route {
 				return fmt.Errorf("validate form data: %w", err)
 			}
 
+			if (watermark.Source == gotenberg.StampSourceImage || watermark.Source == gotenberg.StampSourcePDF) && watermarkFile != "" {
+				watermark.Expression = watermarkFile
+			}
+			if (stamp.Source == gotenberg.StampSourceImage || stamp.Source == gotenberg.StampSourcePDF) && stampFile != "" {
+				stamp.Expression = stampFile
+			}
+
 			url, err := markdownToHtml(ctx, inputPath, markdownPaths)
 			if err != nil {
 				return fmt.Errorf("transform markdown file(s) to HTML: %w", err)
 			}
 
-			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata, userPassword, ownerPassword, attachmentsPaths)
+			options.AllowedFilePrefixes = []string{ctx.DirPath()}
+			err = convertUrl(ctx, chromium, engine, url, options, mode, pdfFormats, metadata, userPassword, ownerPassword, embedPaths, embedsMetadata, watermark, stamp, rotateAngle, rotatePages)
 			if err != nil {
 				return fmt.Errorf("convert markdown to PDF: %w", err)
 			}
@@ -604,6 +644,7 @@ func screenshotMarkdownRoute(chromium Api) api.Route {
 				return fmt.Errorf("transform markdown file(s) to HTML: %w", err)
 			}
 
+			options.AllowedFilePrefixes = []string{ctx.DirPath()}
 			err = screenshotUrl(ctx, chromium, url, options)
 			if err != nil {
 				return fmt.Errorf("markdown screenshot: %w", err)
@@ -629,7 +670,7 @@ func markdownToHtml(ctx *api.Context, inputPath string, markdownPaths []string)
 				var path string
 
 				for _, markdownPath := range markdownPaths {
-					markdownFilename := filepath.Base(markdownPath)
+					markdownFilename := ctx.OriginalFilename(markdownPath)
 
 					if filename == markdownFilename {
 						path = markdownPath
@@ -638,7 +679,7 @@ func markdownToHtml(ctx *api.Context, inputPath string, markdownPaths []string)
 				}
 
 				if path == "" {
-					markdownFilesNotFoundErr = multierr.Append(
+					markdownFilesNotFoundErr = errors.Join(
 						markdownFilesNotFoundErr,
 						fmt.Errorf("'%s'", filename),
 					)
@@ -689,7 +730,7 @@ func markdownToHtml(ctx *api.Context, inputPath string, markdownPaths []string)
 	return fmt.Sprintf("file://%s", inputPath), nil
 }
 
-func convertUrl(ctx *api.Context, chromium Api, engine gotenberg.PdfEngine, url string, options PdfOptions, mode gotenberg.SplitMode, pdfFormats gotenberg.PdfFormats, metadata map[string]any, userPassword, ownerPassword string, attachmentsPaths []string) error {
+func convertUrl(ctx *api.Context, chromium Api, engine gotenberg.PdfEngine, url string, options PdfOptions, mode gotenberg.SplitMode, pdfFormats gotenberg.PdfFormats, metadata map[string]any, userPassword, ownerPassword string, embedPaths []string, embedsMetadata map[string]map[string]string, watermark, stamp gotenberg.Stamp, rotateAngle int, rotatePages string) error {
 	outputPath := ctx.GeneratePath(".pdf")
 	// See https://github.com/gotenberg/gotenberg/issues/1130.
 	filename := ctx.OutputFilename(outputPath)
@@ -751,26 +792,53 @@ func convertUrl(ctx *api.Context, chromium Api, engine gotenberg.PdfEngine, url
 		return fmt.Errorf("convert to PDF: %w", err)
 	}
 
+	err = pdfengines.ValidatePdfFormatsCompat(pdfFormats, userPassword, embedPaths)
+	if err != nil {
+		return err
+	}
+
 	outputPaths, err := pdfengines.SplitPdfStub(ctx, engine, mode, []string{outputPath})
 	if err != nil {
 		return fmt.Errorf("split PDF: %w", err)
 	}
 
+	err = pdfengines.WatermarkStub(ctx, engine, watermark, outputPaths)
+	if err != nil {
+		return fmt.Errorf("watermark PDFs: %w", err)
+	}
+
+	err = pdfengines.StampStub(ctx, engine, stamp, outputPaths)
+	if err != nil {
+		return fmt.Errorf("stamp PDFs: %w", err)
+	}
+
+	err = pdfengines.RotateStub(ctx, engine, rotateAngle, rotatePages, outputPaths)
+	if err != nil {
+		return fmt.Errorf("rotate PDFs: %w", err)
+	}
+
 	convertOutputPaths, err := pdfengines.ConvertStub(ctx, engine, pdfFormats, outputPaths)
 	if err != nil {
 		return fmt.Errorf("convert PDF(s): %w", err)
 	}
 
-	err = pdfengines.AddAttachmentsStub(ctx, engine, attachmentsPaths, convertOutputPaths)
-	if err != nil {
-		return fmt.Errorf("add attachments into PDFs: %w", err)
-	}
-
+	// Metadata, embeds are written after Convert, as LibreOffice
+	// strips them during PDF/A conversion.
 	err = pdfengines.WriteMetadataStub(ctx, engine, metadata, convertOutputPaths)
 	if err != nil {
 		return fmt.Errorf("write metadata: %w", err)
 	}
 
+	err = pdfengines.EmbedFilesStub(ctx, engine, embedPaths, convertOutputPaths)
+	if err != nil {
+		return fmt.Errorf("embed files into PDFs: %w", err)
+	}
+
+	err = pdfengines.EmbedFilesMetadataStub(ctx, engine, embedsMetadata, convertOutputPaths)
+	if err != nil {
+		return fmt.Errorf("set embeds metadata: %w", err)
+	}
+
 	err = pdfengines.EncryptPdfStub(ctx, engine, userPassword, ownerPassword, convertOutputPaths)
 	if err != nil {
 		return fmt.Errorf("encrypt PDFs: %w", err)

pkg/modules/chromium/tasks.go

@@ -31,7 +31,9 @@ func printToPdfActionFunc(logger *slog.Logger, outputPath string, options PdfOpt
 
 			// There are 96 CSS pixels per inch.
 			// See https://issues.chromium.org/issues/40267771#comment14.
-			paperHeight = cssContentSize.Height / 96
+			// We add top and bottom margins so that the content area
+			// is large enough to fit the entire content.
+			paperHeight = (cssContentSize.Height / 96) + options.MarginTop + options.MarginBottom
 			pageRanges = "1" // little dirty hack to avoid leftovers.
 		}
 
@@ -303,28 +305,28 @@ func userAgentOverride(logger *slog.Logger, userAgent string) chromedp.ActionFun
 // network.SetExtraHTTPHeaders set the headers for ALL requests from the page.
 // See https://github.com/gotenberg/gotenberg/issues/1011.
 //
-//func extraHttpHeadersActionFunc(logger *slog.Logger, extraHttpHeaders map[string]string) chromedp.ActionFunc {
-//	return func(ctx context.Context) error {
-//		if len(extraHttpHeaders) == 0 {
-//			logger.DebugContext(ctx, "no extra HTTP headers")
-//			return nil
-//		}
+//  func extraHttpHeadersActionFunc(logger *slog.Logger, extraHttpHeaders map[string]string) chromedp.ActionFunc {
+// 	return func(ctx context.Context) error {
+// 		if len(extraHttpHeaders) == 0 {
+// 			logger.DebugContext(ctx,"no extra HTTP headers")
+// 			return nil
+// 		}
 //
-//		logger.DebugContext(ctx, fmt.Sprintf("extra HTTP headers: %+v", extraHttpHeaders))
+// 		logger.DebugContext(ctx,fmt.Sprintf("extra HTTP headers: %+v", extraHttpHeaders))
 //
-//		headers := make(network.Headers, len(extraHttpHeaders))
-//		for key, value := range extraHttpHeaders {
-//			headers[key] = value
-//		}
+// 		headers := make(network.Headers, len(extraHttpHeaders))
+// 		for key, value := range extraHttpHeaders {
+// 			headers[key] = value
+// 		}
 //
-//		err := network.SetExtraHTTPHeaders(headers).Do(ctx)
-//		if err == nil {
-//			return nil
-//		}
+// 		err := network.SetExtraHTTPHeaders(headers).Do(ctx)
+// 		if err == nil {
+// 			return nil
+// 		}
 //
-//		return fmt.Errorf("set extra HTTP headers: %w", err)
-//	}
-//}
+// 		return fmt.Errorf("set extra HTTP headers: %w", err)
+// 	}
+// }
 
 func navigateActionFunc(logger *slog.Logger, url string, skipNetworkIdleEvent, skipNetworkAlmostIdleEvent bool) chromedp.ActionFunc {
 	return func(ctx context.Context) error {

pkg/modules/exiftool/doc.go

@@ -1,11 +1,6 @@
-// Package exiftool provides an implementation of the gotenberg.PdfEngine
-// interface using the ExifTool command-line tool. This package allows for:
+// Package exiftool implements gotenberg.PdfEngine using the ExifTool command-line tool. Reads and writes PDF metadata.
 //
-// 1. The reading of metadata.
-// 2. The writing of metadata.
+// Requires the EXIFTOOL_BIN_PATH environment variable.
 //
-// The path to the exiftool binary must be specified using the
-// EXIFTOOL_BIN_PATH environment variable.
-//
-// See: https://exiftool.org.
+// See https://exiftool.org.
 package exiftool

pkg/modules/exiftool/exiftool.go

@@ -8,11 +8,13 @@ import (
 	"os"
 	"os/exec"
 	"reflect"
+	"regexp"
 	"strings"
 	"syscall"
 
 	"github.com/barasher/go-exiftool"
 	"go.opentelemetry.io/otel/codes"
+	semconv "go.opentelemetry.io/otel/semconv/v1.40.0"
 	"go.opentelemetry.io/otel/trace"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
@@ -22,6 +24,58 @@ func init() {
 	gotenberg.MustRegisterModule(new(ExifTool))
 }
 
+// safeKeyPattern matches legitimate ExifTool tag names: alphanumeric,
+// hyphens, underscores, colons, and periods. Rejects control characters
+// (especially \n) that would inject stdin arguments via go-exiftool's
+// line-based protocol.
+var safeKeyPattern = regexp.MustCompile(`^[a-zA-Z0-9\-_.:]+$`)
+
+// validateMetadataValue rejects metadata values containing characters that
+// could inject ExifTool stdin arguments. go-exiftool writes each key/value
+// pair as a single line via fmt.Fprintln(stdin, "-"+k+"="+str), so a
+// newline in the value splits into a second stdin line that ExifTool
+// interprets as an additional argument. An attacker who controls a
+// metadata value but not the key could otherwise inject pseudo-tags like
+// -FileName=, -Directory=, -SymLink=, or -HardLink= and trigger arbitrary
+// filesystem side effects. The same applies to carriage returns and NUL.
+//
+// The returned error wraps [gotenberg.ErrPdfEngineMetadataValueNotSupported]
+// so the API layer surfaces it as HTTP 400.
+func validateMetadataValue(key, value string) error {
+	if strings.ContainsAny(value, "\n\r\x00") {
+		return fmt.Errorf("write PDF metadata with ExifTool: invalid metadata value for key %q (contains control character): %w", key, gotenberg.ErrPdfEngineMetadataValueNotSupported)
+	}
+	return nil
+}
+
+// systemTags lists ExifTool tags that reflect internal filesystem state
+// rather than actual PDF metadata. These are stripped from both read and
+// write operations.
+var systemTags = []string{
+	"FileName",            // Reflects UUID-based disk name, not original filename
+	"Directory",           // Leaks internal temp path
+	"FileSize",            // System attribute
+	"FileModifyDate",      // System attribute
+	"FileAccessDate",      // System attribute
+	"FileInodeChangeDate", // System attribute
+	"FilePermissions",     // System attribute
+	"ExifToolVersion",     // Tool metadata
+	"Error",               // Extraction error messages
+	"Warning",             // Extraction warning messages
+}
+
+// writeOnlyDerivedTags lists ExifTool tags that are safe to return when
+// reading metadata but should not be written back (writing them can break
+// PDF/A compliance or cause side effects).
+var writeOnlyDerivedTags = []string{
+	"PageCount",         // Causes prism:pageCount injection
+	"Linearized",        // Computed status; writing it may invalidate structure
+	"PDFVersion",        // Header version; should not be manually forced via metadata
+	"MIMEType",          // Read-only derived
+	"FileType",          // Read-only derived
+	"FileTypeExtension", // Read-only derived
+}
+
 // ExifTool abstracts the CLI tool ExifTool and implements the
 // [gotenberg.PdfEngine] interface.
 type ExifTool struct {
@@ -77,63 +131,66 @@ func (engine *ExifTool) Debug() map[string]any {
 
 // Merge is not available in this implementation.
 func (engine *ExifTool) Merge(ctx context.Context, logger *slog.Logger, inputPaths []string, outputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.Merge", trace.WithSpanKind(trace.SpanKindInternal))
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Merge",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
 	err := fmt.Errorf("merge PDFs with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return err
 }
 
 // Split is not available in this implementation.
 func (engine *ExifTool) Split(ctx context.Context, logger *slog.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.Split", trace.WithSpanKind(trace.SpanKindInternal))
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Split",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
 	err := fmt.Errorf("split PDF with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return nil, err
 }
 
 // Flatten is not available in this implementation.
 func (engine *ExifTool) Flatten(ctx context.Context, logger *slog.Logger, inputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.Flatten", trace.WithSpanKind(trace.SpanKindInternal))
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Flatten",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
 	err := fmt.Errorf("flatten PDF with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return err
 }
 
 // Convert is not available in this implementation.
 func (engine *ExifTool) Convert(ctx context.Context, logger *slog.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.Convert", trace.WithSpanKind(trace.SpanKindInternal))
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Convert",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
 	err := fmt.Errorf("convert PDF to '%+v' with ExifTool: %w", formats, gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return err
 }
 
 // ReadMetadata extracts the metadata of a given PDF file.
 func (engine *ExifTool) ReadMetadata(ctx context.Context, logger *slog.Logger, inputPath string) (map[string]any, error) {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.ReadMetadata", trace.WithSpanKind(trace.SpanKindInternal))
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.ReadMetadata",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
 	exifTool, err := exiftool.NewExiftool(exiftool.SetExiftoolBinaryPath(engine.binPath))
@@ -159,12 +216,22 @@ func (engine *ExifTool) ReadMetadata(ctx context.Context, logger *slog.Logger, i
 		return nil, err
 	}
 
+	// Strip system tags that reflect internal filesystem state (e.g.,
+	// UUID-based FileName, temp Directory) rather than actual PDF metadata.
+	for _, tag := range systemTags {
+		delete(fileMetadata[0].Fields, tag)
+	}
+
+	span.SetStatus(codes.Ok, "")
 	return fileMetadata[0].Fields, nil
 }
 
 // WriteMetadata writes the metadata into a given PDF file.
 func (engine *ExifTool) WriteMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]any, inputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.WriteMetadata", trace.WithSpanKind(trace.SpanKindInternal))
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.WriteMetadata",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
 	exifTool, err := exiftool.NewExiftool(exiftool.SetExiftoolBinaryPath(engine.binPath))
@@ -190,51 +257,95 @@ func (engine *ExifTool) WriteMetadata(ctx context.Context, logger *slog.Logger,
 		return err
 	}
 
-	// Define a list of derived, system, or computed tags that ExifTool
-	// extracts but should never be written back. Writing these can break PDF/A
-	// compliance (e.g., PageCount -> prism:pageCount) or cause side effects
-	// (e.g., FileModifyDate).
-	derivedTags := []string{
-		"PageCount",           // Causes prism:pageCount injection
-		"Linearized",          // Computed status; writing it may invalidate structure
-		"PDFVersion",          // Header version; should not be manually forced via metadata
-		"MIMEType",            // Read-only derived
-		"FileType",            // Read-only derived
-		"FileTypeExtension",   // Read-only derived
-		"FileSize",            // System attribute
-		"FileModifyDate",      // System attribute
-		"FileAccessDate",      // System attribute
-		"FileInodeChangeDate", // System attribute
-		"FilePermissions",     // System attribute
-		"FileName",            // Writing this triggers a file rename in ExifTool
-		"Directory",           // System attribute
-		"ExifToolVersion",     // Tool metadata
-		"Error",               // Extraction error messages
-		"Warning",             // Extraction warning messages
+	// Strip system and derived tags from the existing file metadata so
+	// they are not written back (which can break PDF/A compliance or
+	// cause side effects).
+	for _, tag := range systemTags {
+		delete(fileMetadata[0].Fields, tag)
+	}
+	for _, tag := range writeOnlyDerivedTags {
+		delete(fileMetadata[0].Fields, tag)
 	}
 
-	for _, tag := range derivedTags {
-		delete(fileMetadata[0].Fields, tag)
+	// Filter user-supplied metadata to prevent ExifTool pseudo-tags from
+	// triggering dangerous side effects like file renames, moves, link
+	// creation, or permission changes. Comparison is case-insensitive
+	// because ExifTool processes tag names case-insensitively, and group
+	// prefixes are stripped because ExifTool treats "System:FileName" the
+	// same as "FileName".
+	// See https://exiftool.org/TagNames/Extra.html.
+	dangerousTags := []string{
+		"FileName",        // Writing this triggers a file rename in ExifTool
+		"Directory",       // Writing this triggers a file move in ExifTool
+		"HardLink",        // Writing this creates a hard link in ExifTool
+		"SymLink",         // Writing this creates a symbolic link in ExifTool
+		"FilePermissions", // Writing this changes the file's permissions
+	}
+	// Reject metadata keys containing characters that could inject ExifTool
+	// stdin arguments. ExifTool uses a line-based stdin protocol; a newline
+	// in a key splits into a separate argument, enabling flag injection
+	// (e.g., -if with Perl eval). Only allow alphanumeric, hyphen, colon,
+	// period, and underscore — sufficient for all legitimate tag names.
+	for key := range metadata {
+		if !safeKeyPattern.MatchString(key) {
+			err = fmt.Errorf("write PDF metadata with ExifTool: invalid metadata key %q: %w", key, gotenberg.ErrPdfEngineMetadataValueNotSupported)
+			span.RecordError(err)
+			span.SetStatus(codes.Error, err.Error())
+			return err
+		}
+	}
+
+	for key := range metadata {
+		// Strip ExifTool group prefixes (e.g., "System:FileName" →
+		// "FileName") before comparing. ExifTool allows leading group
+		// names separated by colons, and treats the prefixed and bare
+		// forms identically.
+		bare := key
+		if i := strings.LastIndex(key, ":"); i >= 0 {
+			bare = key[i+1:]
+		}
+		for _, tag := range dangerousTags {
+			if strings.EqualFold(bare, tag) {
+				delete(metadata, key)
+			}
+		}
 	}
 
 	for key, value := range metadata {
 		switch val := value.(type) {
 		case string:
+			if err = validateMetadataValue(key, val); err != nil {
+				span.RecordError(err)
+				span.SetStatus(codes.Error, err.Error())
+				return err
+			}
 			fileMetadata[0].SetString(key, val)
 		case []string:
+			for _, s := range val {
+				if err = validateMetadataValue(key, s); err != nil {
+					span.RecordError(err)
+					span.SetStatus(codes.Error, err.Error())
+					return err
+				}
+			}
 			fileMetadata[0].SetStrings(key, val)
 		case []any:
 			// See https://github.com/gotenberg/gotenberg/issues/1048.
 			strs := make([]string, len(val))
 			for i, entry := range val {
-				if str, ok := entry.(string); ok {
-					strs[i] = str
-					continue
+				str, ok := entry.(string)
+				if !ok {
+					err = fmt.Errorf("write PDF metadata with ExifTool: %s %+v %s %w", key, val, reflect.TypeFor[[]any](), gotenberg.ErrPdfEngineMetadataValueNotSupported)
+					span.RecordError(err)
+					span.SetStatus(codes.Error, err.Error())
+					return err
 				}
-				err = fmt.Errorf("write PDF metadata with ExifTool: %s %+v %s %w", key, val, reflect.TypeFor[[]any](), gotenberg.ErrPdfEngineMetadataValueNotSupported)
-				span.RecordError(err)
-				span.SetStatus(codes.Error, err.Error())
-				return err
+				if err = validateMetadataValue(key, str); err != nil {
+					span.RecordError(err)
+					span.SetStatus(codes.Error, err.Error())
+					return err
+				}
+				strs[i] = str
 			}
 			fileMetadata[0].SetStrings(key, strs)
 		case bool:
@@ -265,37 +376,166 @@ func (engine *ExifTool) WriteMetadata(ctx context.Context, logger *slog.Logger,
 		return err
 	}
 
+	span.SetStatus(codes.Ok, "")
 	return nil
 }
 
+// PageCount returns the number of pages in a PDF file using ExifTool.
+func (engine *ExifTool) PageCount(ctx context.Context, logger *slog.Logger, inputPath string) (int, error) {
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.PageCount",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
+	defer span.End()
+
+	metadata, err := engine.ReadMetadata(ctx, logger, inputPath)
+	if err != nil {
+		err = fmt.Errorf("read metadata with ExifTool: %w", err)
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+		return 0, err
+	}
+
+	pageCountValue, ok := metadata["PageCount"]
+	if !ok {
+		err = errors.New("PageCount not found in metadata")
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+		return 0, err
+	}
+
+	switch val := pageCountValue.(type) {
+	case int:
+		span.SetStatus(codes.Ok, "")
+		return val, nil
+	case int64:
+		span.SetStatus(codes.Ok, "")
+		return int(val), nil
+	case float64:
+		span.SetStatus(codes.Ok, "")
+		return int(val), nil
+	case string:
+		var res int
+		_, err := fmt.Sscanf(val, "%d", &res)
+		if err != nil {
+			err = fmt.Errorf("parse PageCount string '%s': %w", val, err)
+			span.RecordError(err)
+			span.SetStatus(codes.Error, err.Error())
+			return 0, err
+		}
+		span.SetStatus(codes.Ok, "")
+		return res, nil
+	default:
+		err = fmt.Errorf("unexpected PageCount type '%T'", pageCountValue)
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+		return 0, err
+	}
+}
+
+// WriteBookmarks is not available in this implementation.
+func (engine *ExifTool) WriteBookmarks(ctx context.Context, logger *slog.Logger, inputPath string, bookmarks []gotenberg.Bookmark) error {
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.WriteBookmarks",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
+	defer span.End()
+
+	err := fmt.Errorf("write PDF bookmarks with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
+	return err
+}
+
+// ReadBookmarks is not available in this implementation.
+func (engine *ExifTool) ReadBookmarks(ctx context.Context, logger *slog.Logger, inputPath string) ([]gotenberg.Bookmark, error) {
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.ReadBookmarks",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
+	defer span.End()
+
+	err := fmt.Errorf("read PDF bookmarks with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
+	return nil, err
+}
+
 // Encrypt is not available in this implementation.
 func (engine *ExifTool) Encrypt(ctx context.Context, logger *slog.Logger, inputPath, userPassword, ownerPassword string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.Encrypt", trace.WithSpanKind(trace.SpanKindInternal))
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Encrypt",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
 	err := fmt.Errorf("encrypt PDF using ExifTool: %w", gotenberg.ErrPdfEncryptionNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return err
 }
 
-// AddAttachments is not available in this implementation.
-func (engine *ExifTool) AddAttachments(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "ExifTool.AddAttachments", trace.WithSpanKind(trace.SpanKindInternal))
+// EmbedFiles is not available in this implementation.
+func (engine *ExifTool) EmbedFiles(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error {
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.EmbedFiles",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
 	defer span.End()
 
-	err := fmt.Errorf("add attachments with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
+	err := fmt.Errorf("embed files with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
 	return err
 }
 
+// Watermark is not available in this implementation.
+func (engine *ExifTool) Watermark(ctx context.Context, logger *slog.Logger, inputPath string, stamp gotenberg.Stamp) error {
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Watermark",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
+	defer span.End()
+
+	err := fmt.Errorf("watermark PDF with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
+	return err
+}
+
+// Stamp is not available in this implementation.
+func (engine *ExifTool) Stamp(ctx context.Context, logger *slog.Logger, inputPath string, stamp gotenberg.Stamp) error {
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Stamp",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
+	defer span.End()
+
+	err := fmt.Errorf("stamp PDF with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
+	return err
+}
+
+// Rotate is not available in this implementation.
+func (engine *ExifTool) Rotate(ctx context.Context, logger *slog.Logger, inputPath string, angle int, pages string) error {
+	_, span := gotenberg.Tracer().Start(ctx, "exiftool.Rotate",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(engine.binPath)),
+	)
+	defer span.End()
+
+	err := fmt.Errorf("rotate PDF with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+	span.RecordError(err)
+	span.SetStatus(codes.Error, err.Error())
+	return err
+}
+
+// EmbedFilesMetadata is not available in this implementation.
+func (engine *ExifTool) EmbedFilesMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]map[string]string, inputPath string) error {
+	return fmt.Errorf("set embeds metadata with ExifTool: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
 // Interface guards.
 var (
 	_ gotenberg.Module      = (*ExifTool)(nil)

pkg/modules/libreoffice/api/api.go

@@ -16,7 +16,8 @@ import (
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
 	"go.opentelemetry.io/otel/metric"
-	"go.uber.org/multierr"
+	semconv "go.opentelemetry.io/otel/semconv/v1.40.0"
+	"go.opentelemetry.io/otel/trace"
 
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 	"github.com/gotenberg/gotenberg/v8/pkg/modules/api"
@@ -138,6 +139,66 @@ type Options struct {
 	// one page.
 	SinglePageSheets bool
 
+	// InitialView specifies how the PDF document should be displayed when
+	// opened. 0 = neither outlines nor thumbnails, 1 = outline pane open,
+	// 2 = thumbnail pane open.
+	InitialView int
+
+	// InitialPage specifies the page on which the PDF document should be
+	// opened in the viewer.
+	InitialPage int
+
+	// Magnification specifies the action to be performed when the PDF document
+	// is opened. 0 = default, 1 = fit entire page, 2 = fit page width,
+	// 3 = fit visible, 4 = use zoom value from Zoom property.
+	Magnification int
+
+	// Zoom specifies the zoom level the PDF document is opened with. Only
+	// used if Magnification is set to 4.
+	Zoom int
+
+	// PageLayout specifies the page layout when the document is opened.
+	// 0 = default, 1 = single page, 2 = one column, 3 = two columns.
+	PageLayout int
+
+	// FirstPageOnLeft is used with PageLayout value 3. If true, the first
+	// page is displayed on the left side.
+	FirstPageOnLeft bool
+
+	// ResizeWindowToInitialPage specifies that the PDF viewer window is
+	// resized to show the whole initial page.
+	ResizeWindowToInitialPage bool
+
+	// CenterWindow specifies that the PDF viewer window is centered on the
+	// screen.
+	CenterWindow bool
+
+	// OpenInFullScreenMode specifies that the PDF viewer window is opened
+	// full screen.
+	OpenInFullScreenMode bool
+
+	// DisplayPDFDocumentTitle specifies that the document title is displayed
+	// in the PDF viewer title bar.
+	DisplayPDFDocumentTitle bool
+
+	// HideViewerMenubar specifies whether to hide the PDF viewer menubar.
+	HideViewerMenubar bool
+
+	// HideViewerToolbar specifies whether to hide the PDF viewer toolbar.
+	HideViewerToolbar bool
+
+	// HideViewerWindowControls specifies whether to hide the PDF viewer
+	// window controls.
+	HideViewerWindowControls bool
+
+	// UseTransitionEffects specifies that slide transitions are exported to
+	// PDF. Only active for Impress documents.
+	UseTransitionEffects bool
+
+	// OpenBookmarkLevels specifies how many bookmark levels should be opened
+	// in the reader. -1 = all levels, 1-10 = specific level.
+	OpenBookmarkLevels int
+
 	// LosslessImageCompression specifies if images are exported to PDF using
 	// a lossless compression format like PNG or compressed using the JPEG
 	// format.
@@ -156,6 +217,29 @@ type Options struct {
 	// Possible values are: 75, 150, 300, 600 and 1200.
 	MaxImageResolution int
 
+	// NativeWatermarkText specifies the text for a watermark to be drawn on
+	// every page of the exported PDF file.
+	// See https://help.libreoffice.org/latest/en-US/text/shared/guide/pdf_params.html.
+	NativeWatermarkText string
+
+	// NativeWatermarkColor specifies the color for the watermark text as a
+	// decimal long value. Default is 8388223 (light green).
+	NativeWatermarkColor int
+
+	// NativeWatermarkFontHeight specifies the font size for the watermark text.
+	NativeWatermarkFontHeight int
+
+	// NativeWatermarkRotateAngle specifies the rotation angle for the watermark
+	// text in tenths of a degree (e.g., 450 = 45°).
+	NativeWatermarkRotateAngle int
+
+	// NativeWatermarkFontName specifies the font name for the watermark text.
+	// Default is "Helvetica".
+	NativeWatermarkFontName string
+
+	// NativeTiledWatermarkText specifies the tiled watermark text.
+	NativeTiledWatermarkText string
+
 	// PdfFormats allows to convert the resulting PDF to PDF/A-1b, PDF/A-2b,
 	// PDF/A-3b and PDF/UA.
 	PdfFormats gotenberg.PdfFormats
@@ -183,10 +267,31 @@ func DefaultOptions() Options {
 		SkipEmptyPages:                  false,
 		AddOriginalDocumentAsStream:     false,
 		SinglePageSheets:                false,
+		InitialView:                     0,
+		InitialPage:                     1,
+		Magnification:                   0,
+		Zoom:                            100,
+		PageLayout:                      0,
+		FirstPageOnLeft:                 false,
+		ResizeWindowToInitialPage:       false,
+		CenterWindow:                    false,
+		OpenInFullScreenMode:            false,
+		DisplayPDFDocumentTitle:         true,
+		HideViewerMenubar:               false,
+		HideViewerToolbar:               false,
+		HideViewerWindowControls:        false,
+		UseTransitionEffects:            true,
+		OpenBookmarkLevels:              -1,
 		LosslessImageCompression:        false,
 		Quality:                         90,
 		ReduceImageResolution:           false,
 		MaxImageResolution:              300,
+		NativeWatermarkText:             "",
+		NativeWatermarkColor:            8388223,
+		NativeWatermarkFontHeight:       0,
+		NativeWatermarkRotateAngle:      0,
+		NativeWatermarkFontName:         "Helvetica",
+		NativeTiledWatermarkText:        "",
 		PdfFormats: gotenberg.PdfFormats{
 			PdfA:  "",
 			PdfUa: false,
@@ -219,6 +324,7 @@ func (a *Api) Descriptor() gotenberg.ModuleDescriptor {
 			fs := flag.NewFlagSet("api", flag.ExitOnError)
 			fs.Int64("libreoffice-restart-after", 10, "Number of conversions after which LibreOffice will automatically restart. Set to 0 to disable this feature")
 			fs.Int64("libreoffice-max-queue-size", 0, "Maximum request queue size for LibreOffice. Set to 0 to disable this feature")
+			fs.Duration("libreoffice-idle-shutdown-timeout", 0, "Shutdown LibreOffice after being idle for the given duration. Set to 0 to disable this feature")
 			fs.Bool("libreoffice-auto-start", false, "Automatically launch LibreOffice upon initialization if set to true; otherwise, LibreOffice will start at the time of the first conversion")
 			fs.Duration("libreoffice-start-timeout", time.Duration(20)*time.Second, "Maximum duration to wait for LibreOffice to start or restart")
 
@@ -254,97 +360,102 @@ func (a *Api) Provision(ctx *gotenberg.Context) error {
 
 	// Process.
 	a.libreOffice = newLibreOfficeProcess(a.args)
-	a.supervisor = gotenberg.NewProcessSupervisor(a.logger, a.libreOffice, flags.MustInt64("libreoffice-restart-after"), flags.MustInt64("libreoffice-max-queue-size"), 1)
+	a.supervisor = gotenberg.NewProcessSupervisor(a.logger, a.libreOffice, flags.MustInt64("libreoffice-restart-after"), flags.MustInt64("libreoffice-max-queue-size"), 1, flags.MustDuration("libreoffice-idle-shutdown-timeout"))
 
-	// OpenTelemetry.
+	// Metrics.
 	meter := gotenberg.Meter()
-	_, err := meter.Int64ObservableCounter(
-		"libreoffice.process.restarts.total",
-		metric.WithDescription("Current number of LibreOffice restarts."),
-		metric.WithUnit("{restart}"),
+
+	// Observable gauges.
+	var err error
+
+	_, err = meter.Int64ObservableGauge(
+		"libreoffice.requests.active",
+		metric.WithDescription("Current number of active LibreOffice requests"),
+		metric.WithUnit("{request}"),
 		metric.WithInt64Callback(func(_ context.Context, o metric.Int64Observer) error {
-			val := a.supervisor.RestartsCount()
-			o.Observe(val)
+			o.Observe(a.supervisor.ActiveTasksCount())
 			return nil
 		}),
 	)
 	if err != nil {
-		return fmt.Errorf("create process restarts observable counter: %w", err)
+		return fmt.Errorf("create libreoffice.requests.active gauge: %w", err)
 	}
 
 	_, err = meter.Int64ObservableGauge(
 		"libreoffice.requests.queue_size",
-		metric.WithDescription("Current number of LibreOffice conversion requests waiting to be treated."),
+		metric.WithDescription("Current number of LibreOffice conversion requests waiting to be treated"),
 		metric.WithUnit("{request}"),
 		metric.WithInt64Callback(func(_ context.Context, o metric.Int64Observer) error {
-			val := a.supervisor.ReqQueueSize()
-			o.Observe(val)
+			o.Observe(a.supervisor.ReqQueueSize())
 			return nil
 		}),
 	)
 	if err != nil {
-		return fmt.Errorf("create requests queue size observable gauge: %w", err)
+		return fmt.Errorf("create libreoffice.requests.queue_size gauge: %w", err)
 	}
 
-	_, err = meter.Int64ObservableGauge(
-		"libreoffice.requests.active",
-		metric.WithDescription("Current number of LibreOffice conversion requests actively being processed."),
-		metric.WithUnit("{request}"),
+	_, err = meter.Int64ObservableCounter(
+		"libreoffice.process.restarts.total",
+		metric.WithDescription("Current number of LibreOffice restarts"),
+		metric.WithUnit("{restart}"),
 		metric.WithInt64Callback(func(_ context.Context, o metric.Int64Observer) error {
-			val := a.supervisor.ActiveTasksCount()
-			o.Observe(val)
+			o.Observe(a.supervisor.RestartsCount())
 			return nil
 		}),
 	)
 	if err != nil {
-		return fmt.Errorf("create requests active observable gauge: %w", err)
+		return fmt.Errorf("create libreoffice.process.restarts.total counter: %w", err)
 	}
 
+	// Counters.
 	a.reqsCounter, err = meter.Int64Counter(
 		"libreoffice.requests.total",
-		metric.WithDescription("Total number of LibreOffice conversion requests."),
+		metric.WithDescription("Total number of LibreOffice conversion requests"),
 		metric.WithUnit("{request}"),
 	)
 	if err != nil {
-		return fmt.Errorf("create requests total counter: %w", err)
+		return fmt.Errorf("create libreoffice.requests.total counter: %w", err)
 	}
 
 	a.errsCounter, err = meter.Int64Counter(
 		"libreoffice.errors.total",
-		metric.WithDescription("Total number of LibreOffice errors."),
+		metric.WithDescription("Total number of LibreOffice conversion errors"),
 		metric.WithUnit("{error}"),
 	)
 	if err != nil {
-		return fmt.Errorf("create errors total counter: %w", err)
+		return fmt.Errorf("create libreoffice.errors.total counter: %w", err)
 	}
 
+	// Histograms.
+	durationBuckets := metric.WithExplicitBucketBoundaries(0.5, 1, 2, 5, 10, 30, 60)
+
 	a.conversionDurationCounter, err = meter.Float64Histogram(
 		"libreoffice.conversion.duration",
-		metric.WithDescription("Duration of each PDF conversion."),
+		metric.WithDescription("Duration of LibreOffice conversions"),
 		metric.WithUnit("s"),
-		metric.WithExplicitBucketBoundaries(0.5, 1, 2, 5, 10, 30, 60),
+		durationBuckets,
 	)
 	if err != nil {
-		return fmt.Errorf("create conversion duration histogram: %w", err)
+		return fmt.Errorf("create libreoffice.conversion.duration histogram: %w", err)
 	}
 
 	a.queueWaitDurationCounter, err = meter.Float64Histogram(
 		"libreoffice.queue.wait.duration",
-		metric.WithDescription("Time a request spends waiting in the queue before processing starts."),
+		metric.WithDescription("Duration of waiting in queue for LibreOffice conversions"),
 		metric.WithUnit("s"),
-		metric.WithExplicitBucketBoundaries(0.5, 1, 2, 5, 10, 30, 60),
+		durationBuckets,
 	)
 	if err != nil {
-		return fmt.Errorf("create queue wait duration histogram: %w", err)
+		return fmt.Errorf("create libreoffice.queue.wait.duration histogram: %w", err)
 	}
 
 	a.pdfOutputSizeCounter, err = meter.Int64Histogram(
 		"libreoffice.pdf.output.size",
-		metric.WithDescription("Size of the generated PDF files."),
+		metric.WithDescription("Size of PDF output from LibreOffice conversions"),
 		metric.WithUnit("By"),
 	)
 	if err != nil {
-		return fmt.Errorf("create pdf output size histogram: %w", err)
+		return fmt.Errorf("create libreoffice.pdf.output.size histogram: %w", err)
 	}
 
 	return nil
@@ -356,12 +467,12 @@ func (a *Api) Validate() error {
 
 	_, statErr := os.Stat(a.args.binPath)
 	if os.IsNotExist(statErr) {
-		err = multierr.Append(err, fmt.Errorf("LibreOffice binary path does not exist: %w", statErr))
+		err = errors.Join(err, fmt.Errorf("LibreOffice binary path does not exist: %w", statErr))
 	}
 
 	_, statErr = os.Stat(a.args.unoBinPath)
 	if os.IsNotExist(statErr) {
-		err = multierr.Append(err, fmt.Errorf("unoconverter binary path does not exist: %w", statErr))
+		err = errors.Join(err, fmt.Errorf("unoconverter binary path does not exist: %w", statErr))
 	}
 
 	return err
@@ -424,6 +535,26 @@ func (a *Api) Debug() map[string]any {
 	return debug
 }
 
+// Metrics returns the metrics.
+func (a *Api) Metrics() ([]gotenberg.Metric, error) {
+	return []gotenberg.Metric{
+		{
+			Name:        "libreoffice_requests_queue_size",
+			Description: "Current number of LibreOffice conversion requests waiting to be treated.",
+			Read: func() float64 {
+				return float64(a.supervisor.ReqQueueSize())
+			},
+		},
+		{
+			Name:        "libreoffice_restarts_count",
+			Description: "Current number of LibreOffice restarts.",
+			Read: func() float64 {
+				return float64(a.supervisor.RestartsCount())
+			},
+		},
+	}, nil
+}
+
 // Checks adds a health check that verifies if LibreOffice is healthy.
 func (a *Api) Checks() ([]health.CheckerOption, error) {
 	return []health.CheckerOption{
@@ -475,7 +606,10 @@ func (a *Api) LibreOffice() (Uno, error) {
 
 // Pdf converts a document to PDF.
 func (a *Api) Pdf(ctx context.Context, logger *slog.Logger, inputPath, outputPath string, options Options) error {
-	ctx, span := gotenberg.Tracer().Start(ctx, "LibreOffice.Pdf")
+	ctx, span := gotenberg.Tracer().Start(ctx, "libreoffice.Pdf",
+		trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(semconv.ServerAddress(a.args.binPath)),
+	)
 	defer span.End()
 
 	start := time.Now()
@@ -486,78 +620,62 @@ func (a *Api) Pdf(ctx context.Context, logger *slog.Logger, inputPath, outputPat
 		return a.libreOffice.pdf(ctx, logger, inputPath, outputPath, options)
 	})
 
-	end := time.Now()
-
+	// Determine status and error reason.
 	status := "success"
+	reason := ""
+
 	if err != nil {
-		if errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled) {
+		switch {
+		case errors.Is(err, context.DeadlineExceeded):
 			status = "timeout"
-		} else {
+			reason = "timeout"
+		case errors.Is(err, context.Canceled):
 			status = "error"
+			reason = "context_cancelled"
+		case errors.Is(err, gotenberg.ErrMaximumQueueSizeExceeded) || errors.Is(err, gotenberg.ErrProcessAlreadyRestarting):
+			status = "error"
+			reason = "libreoffice_unavailable"
+		default:
+			status = "error"
+			reason = "unknown"
 		}
 	}
 
+	// Record metrics.
+	attrs := metric.WithAttributes(attribute.String("status", status))
+	a.reqsCounter.Add(ctx, 1, attrs)
+
+	if reason != "" {
+		a.errsCounter.Add(ctx, 1, metric.WithAttributes(attribute.String("reason", reason)))
+	}
+
 	if !conversionStart.IsZero() {
-		waitDuration := conversionStart.Sub(start).Seconds()
-		conversionDuration := end.Sub(conversionStart).Seconds()
+		queueWait := conversionStart.Sub(start).Seconds()
+		a.queueWaitDurationCounter.Record(ctx, queueWait, attrs)
 
-		a.queueWaitDurationCounter.Record(ctx, waitDuration, metric.WithAttributes(
-			attribute.String("status", status),
-		))
-		a.conversionDurationCounter.Record(ctx, conversionDuration, metric.WithAttributes(
-			attribute.String("status", status),
-		))
-	} else {
-		waitDuration := end.Sub(start).Seconds()
-		a.queueWaitDurationCounter.Record(ctx, waitDuration, metric.WithAttributes(
-			attribute.String("status", status),
-		))
+		conversionDuration := time.Since(conversionStart).Seconds()
+		a.conversionDurationCounter.Record(ctx, conversionDuration, attrs)
 	}
 
-	a.reqsCounter.Add(ctx, 1, metric.WithAttributes(
-		attribute.String("status", status),
-	))
-
 	if err == nil {
-		if fileInfo, statErr := os.Stat(outputPath); statErr == nil {
-			a.pdfOutputSizeCounter.Record(ctx, fileInfo.Size())
+		stat, statErr := os.Stat(outputPath)
+		if statErr == nil {
+			a.pdfOutputSizeCounter.Record(ctx, stat.Size(), attrs)
 		}
+
+		span.SetStatus(codes.Ok, "")
 		return nil
 	}
 
-	reason := "unknown"
-	if errors.Is(err, context.DeadlineExceeded) {
-		reason = "timeout"
-	} else if errors.Is(err, context.Canceled) {
-		reason = "context_cancelled"
-	} else if errors.Is(err, ErrInvalidPdfFormats) {
-		reason = "invalid_input"
-	} else if errors.Is(err, gotenberg.ErrMaximumQueueSizeExceeded) {
-		reason = "libreoffice_maximum_queue_size_exceeded"
-	} else if errors.Is(err, gotenberg.ErrProcessAlreadyRestarting) {
-		reason = "libreoffice_unavailable"
-	}
-
-	a.errsCounter.Add(ctx, 1, metric.WithAttributes(
-		attribute.String("reason", reason),
-	))
-
 	// See https://github.com/gotenberg/gotenberg/issues/639.
 	if errors.Is(err, ErrCoreDumped) {
 		logger.DebugContext(ctx, fmt.Sprintf("got a '%s' error, retry conversion", err))
-		err = a.Pdf(ctx, logger, inputPath, outputPath, options)
-		if err != nil {
-			span.RecordError(err)
-			span.SetStatus(codes.Error, err.Error())
-		}
-		return err
+		return a.Pdf(ctx, logger, inputPath, outputPath, options)
 	}
 
-	err = fmt.Errorf("supervisor run task: %w", err)
 	span.RecordError(err)
 	span.SetStatus(codes.Error, err.Error())
-
-	return err
+	return fmt.Errorf("supervisor run task: %w", err)
 }
 
 // Extensions returns the file extensions available for conversions.
@@ -699,12 +817,13 @@ func (a *Api) Extensions() []string {
 
 // Interface guards.
 var (
-	_ gotenberg.Module      = (*Api)(nil)
-	_ gotenberg.Provisioner = (*Api)(nil)
-	_ gotenberg.Validator   = (*Api)(nil)
-	_ gotenberg.App         = (*Api)(nil)
-	_ gotenberg.Debuggable  = (*Api)(nil)
-	_ api.HealthChecker     = (*Api)(nil)
-	_ Uno                   = (*Api)(nil)
-	_ Provider              = (*Api)(nil)
+	_ gotenberg.Module          = (*Api)(nil)
+	_ 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)
+	_ Provider                  = (*Api)(nil)
 )

pkg/modules/libreoffice/api/doc.go

@@ -1,3 +1,2 @@
-// Package api provides a module which manages a LibreOffice instance and
-// interacts with it via the UNO (Universal Network Objects) API.
+// Package api manages a LibreOffice instance via the UNO API.
 package api

pkg/modules/libreoffice/api/libreoffice.go

@@ -12,11 +12,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/codes"
-	semconv "go.opentelemetry.io/otel/semconv/v1.39.0"
-	"go.opentelemetry.io/otel/trace"
-
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 )
 
@@ -90,7 +85,7 @@ func (p *libreOfficeProcess) Start(logger *slog.Logger) error {
 		return fmt.Errorf("execute LibreOffice: %w", err)
 	}
 
-	logger.DebugContext(ctx, "got exit code 81, e.g., LibreOffice first start")
+	logger.DebugContext(context.Background(), "got exit code 81, e.g., LibreOffice first start")
 
 	// Second start (daemon).
 	cmd = gotenberg.Command(logger, p.arguments.binPath, args...)
@@ -127,7 +122,7 @@ func (p *libreOfficeProcess) Start(logger *slog.Logger) error {
 			connChan <- nil
 			err = conn.Close()
 			if err != nil {
-				logger.DebugContext(ctx, fmt.Sprintf("close connection after health checking the LibreOffice: %v", err))
+				logger.DebugContext(context.Background(), fmt.Sprintf("close connection after health checking the LibreOffice: %v", err))
 			}
 
 			break
@@ -164,7 +159,7 @@ func (p *libreOfficeProcess) Start(logger *slog.Logger) error {
 		logger.DebugContext(context.Background(), fmt.Sprintf("'%s' LibreOffice's user profile directory removed", userProfileDirPath))
 	}()
 
-	logger.DebugContext(ctx, "waiting for the LibreOffice socket to be available...")
+	logger.DebugContext(context.Background(), "waiting for the LibreOffice socket to be available...")
 
 	for {
 		select {
@@ -173,7 +168,7 @@ func (p *libreOfficeProcess) Start(logger *slog.Logger) error {
 				return fmt.Errorf("LibreOffice socket not available: %w", err)
 			}
 
-			logger.DebugContext(ctx, "LibreOffice socket available")
+			logger.DebugContext(context.Background(), "LibreOffice socket available")
 			success = true
 
 			return nil
@@ -300,19 +295,58 @@ func (p *libreOfficeProcess) pdf(ctx context.Context, logger *slog.Logger, input
 	args = append(args, "--export", fmt.Sprintf("IsSkipEmptyPages=%t", options.SkipEmptyPages))
 	args = append(args, "--export", fmt.Sprintf("IsAddStream=%t", options.AddOriginalDocumentAsStream))
 	args = append(args, "--export", fmt.Sprintf("SinglePageSheets=%t", options.SinglePageSheets))
+	args = append(args, "--export", fmt.Sprintf("InitialView=%d", options.InitialView))
+	args = append(args, "--export", fmt.Sprintf("InitialPage=%d", options.InitialPage))
+	args = append(args, "--export", fmt.Sprintf("Magnification=%d", options.Magnification))
+	args = append(args, "--export", fmt.Sprintf("Zoom=%d", options.Zoom))
+	args = append(args, "--export", fmt.Sprintf("PageLayout=%d", options.PageLayout))
+	args = append(args, "--export", fmt.Sprintf("FirstPageOnLeft=%t", options.FirstPageOnLeft))
+	args = append(args, "--export", fmt.Sprintf("ResizeWindowToInitialPage=%t", options.ResizeWindowToInitialPage))
+	args = append(args, "--export", fmt.Sprintf("CenterWindow=%t", options.CenterWindow))
+	args = append(args, "--export", fmt.Sprintf("OpenInFullScreenMode=%t", options.OpenInFullScreenMode))
+	args = append(args, "--export", fmt.Sprintf("DisplayPDFDocumentTitle=%t", options.DisplayPDFDocumentTitle))
+	args = append(args, "--export", fmt.Sprintf("HideViewerMenubar=%t", options.HideViewerMenubar))
+	args = append(args, "--export", fmt.Sprintf("HideViewerToolbar=%t", options.HideViewerToolbar))
+	args = append(args, "--export", fmt.Sprintf("HideViewerWindowControls=%t", options.HideViewerWindowControls))
+	args = append(args, "--export", fmt.Sprintf("UseTransitionEffects=%t", options.UseTransitionEffects))
+	args = append(args, "--export", fmt.Sprintf("OpenBookmarkLevels=%d", options.OpenBookmarkLevels))
 	args = append(args, "--export", fmt.Sprintf("UseLosslessCompression=%t", options.LosslessImageCompression))
 	args = append(args, "--export", fmt.Sprintf("Quality=%d", options.Quality))
 	args = append(args, "--export", fmt.Sprintf("ReduceImageResolution=%t", options.ReduceImageResolution))
 	args = append(args, "--export", fmt.Sprintf("MaxImageResolution=%d", options.MaxImageResolution))
 
+	if options.NativeWatermarkText != "" {
+		args = append(args, "--export", fmt.Sprintf("Watermark=%s", options.NativeWatermarkText))
+	}
+
+	if options.NativeWatermarkColor != 0 {
+		args = append(args, "--export", fmt.Sprintf("WatermarkColor=%d", options.NativeWatermarkColor))
+	}
+
+	if options.NativeWatermarkFontHeight > 0 {
+		args = append(args, "--export", fmt.Sprintf("WatermarkFontHeight=%d", options.NativeWatermarkFontHeight))
+	}
+
+	if options.NativeWatermarkRotateAngle != 0 {
+		args = append(args, "--export", fmt.Sprintf("WatermarkRotateAngle=%d", options.NativeWatermarkRotateAngle))
+	}
+
+	if options.NativeWatermarkFontName != "" && options.NativeWatermarkFontName != "Helvetica" {
+		args = append(args, "--export", fmt.Sprintf("WatermarkFontName=%s", options.NativeWatermarkFontName))
+	}
+
+	if options.NativeTiledWatermarkText != "" {
+		args = append(args, "--export", fmt.Sprintf("TiledWatermark=%s", options.NativeTiledWatermarkText))
+	}
+
 	switch options.PdfFormats.PdfA {
 	case "":
 	case gotenberg.PdfA1b:
-		args = append(args, "--export", "SelectPdfVersion=1")
+		args = append(args, "--export", "SelectPdfVersion=1", "--export", "EmbedStandardFonts=true")
 	case gotenberg.PdfA2b:
-		args = append(args, "--export", "SelectPdfVersion=2")
+		args = append(args, "--export", "SelectPdfVersion=2", "--export", "EmbedStandardFonts=true")
 	case gotenberg.PdfA3b:
-		args = append(args, "--export", "SelectPdfVersion=3")
+		args = append(args, "--export", "SelectPdfVersion=3", "--export", "EmbedStandardFonts=true")
 	default:
 		return ErrInvalidPdfFormats
 	}
@@ -323,6 +357,7 @@ func (p *libreOfficeProcess) pdf(ctx context.Context, logger *slog.Logger, input
 			"--export", "PDFUACompliance=true",
 			"--export", "UseTaggedPDF=true",
 			"--export", "EnableTextAccessForAccessibilityTools=true",
+			"--export", "EmbedStandardFonts=true",
 		)
 	} else {
 		args = append(
@@ -335,35 +370,14 @@ func (p *libreOfficeProcess) pdf(ctx context.Context, logger *slog.Logger, input
 
 	args = append(args, "--output", outputPath, inputPath)
 
-	p.cfgMu.RLock()
-	clientCtx, clientSpan := gotenberg.Tracer().Start(ctx, "uno.execute",
-		trace.WithSpanKind(trace.SpanKindClient),
-		trace.WithAttributes(
-			semconv.ServerAddress("127.0.0.1"),
-			semconv.ServerPort(p.socketPort),
-			semconv.ServicePeerName("libreoffice"),
-			// Legacy attribute for older APMs (Datadog, Jaeger) to draw the
-			// dependency graph.
-			attribute.String("peer.service", "libreoffice"),
-		),
-	)
-	p.cfgMu.RUnlock()
-
-	cmd, err := gotenberg.CommandContext(clientCtx, logger, p.arguments.unoBinPath, args...)
+	cmd, err := gotenberg.CommandContext(ctx, logger, p.arguments.unoBinPath, args...)
 	if err != nil {
 		return fmt.Errorf("create uno command: %w", err)
 	}
 
-	logger.DebugContext(clientCtx, fmt.Sprintf("print to PDF with: %+v", options))
+	logger.DebugContext(ctx, fmt.Sprintf("print to PDF with: %+v", options))
 
 	exitCode, err := cmd.Exec()
-	if err != nil {
-		clientSpan.RecordError(err)
-		clientSpan.SetStatus(codes.Error, err.Error())
-	}
-
-	clientSpan.End()
-
 	if err == nil {
 		return nil
 	}

pkg/modules/libreoffice/doc.go

@@ -1,3 +1,3 @@
-// Package libreoffice provides a module which adds a route for converting
-// documents to PDF with LibreOffice.
+// Package libreoffice adds a route for converting documents to PDF with
+// LibreOffice.
 package libreoffice

pkg/modules/libreoffice/pdfengine/doc.go

@@ -1,6 +1,3 @@
-// Package pdfengine provides a module which interacts with LibreOffice via the
-// UNO (Universal Network Objects) API and implements the gotenberg.PdfEngine
-// interface. This package allows for:
-//
-// 1. The conversion to specific PDF formats.
+// Package pdfengine implements gotenberg.PdfEngine using LibreOffice via the
+// UNO API. Converts PDFs to specific PDF formats.
 package pdfengine

pkg/modules/libreoffice/pdfengine/pdfengine.go

@@ -6,9 +6,6 @@ import (
 	"fmt"
 	"log/slog"
 
-	"go.opentelemetry.io/otel/codes"
-	"go.opentelemetry.io/otel/trace"
-
 	"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
 	"github.com/gotenberg/gotenberg/v8/pkg/modules/libreoffice/api"
 )
@@ -50,44 +47,17 @@ func (engine *LibreOfficePdfEngine) Provision(ctx *gotenberg.Context) error {
 
 // Merge is not available in this implementation.
 func (engine *LibreOfficePdfEngine) Merge(ctx context.Context, logger *slog.Logger, inputPaths []string, outputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.Merge", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
-
-	err := fmt.Errorf("merge PDFs with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
-	return err
+	return fmt.Errorf("merge PDFs with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // Split is not available in this implementation.
 func (engine *LibreOfficePdfEngine) Split(ctx context.Context, logger *slog.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
-	_, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.Split", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
-
-	err := fmt.Errorf("split PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
-	return nil, err
+	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 *slog.Logger, inputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.Flatten", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
-
-	err := fmt.Errorf("flatten PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
-	return err
+	return fmt.Errorf("flatten PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // Convert converts the given PDF to a specific PDF format. Currently, only the
@@ -95,9 +65,6 @@ func (engine *LibreOfficePdfEngine) Flatten(ctx context.Context, logger *slog.Lo
 // PDF format is requested, it returns a [gotenberg.ErrPdfFormatNotSupported]
 // error.
 func (engine *LibreOfficePdfEngine) Convert(ctx context.Context, logger *slog.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
-	ctx, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.Convert", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
-
 	opts := api.DefaultOptions()
 	opts.PdfFormats = formats
 	err := engine.unoApi.Pdf(ctx, logger, inputPath, outputPath, opts)
@@ -107,73 +74,65 @@ func (engine *LibreOfficePdfEngine) Convert(ctx context.Context, logger *slog.Lo
 	}
 
 	if errors.Is(err, api.ErrInvalidPdfFormats) {
-		err = fmt.Errorf("convert PDF to '%+v' with LibreOffice: %w", formats, gotenberg.ErrPdfFormatNotSupported)
-	} else {
-		err = fmt.Errorf("convert PDF to '%+v' with LibreOffice: %w", formats, err)
+		return fmt.Errorf("convert PDF to '%+v' with LibreOffice: %w", formats, gotenberg.ErrPdfFormatNotSupported)
 	}
 
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
-	return err
+	return fmt.Errorf("convert PDF to '%+v' with LibreOffice: %w", formats, err)
 }
 
 // ReadMetadata is not available in this implementation.
 func (engine *LibreOfficePdfEngine) ReadMetadata(ctx context.Context, logger *slog.Logger, inputPath string) (map[string]any, error) {
-	_, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.ReadMetadata", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
-
-	err := fmt.Errorf("read PDF metadata with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
-	return nil, err
+	return nil, fmt.Errorf("read PDF metadata with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // WriteMetadata is not available in this implementation.
 func (engine *LibreOfficePdfEngine) WriteMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]any, inputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.WriteMetadata", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
+	return fmt.Errorf("write PDF metadata with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
 
-	err := fmt.Errorf("write PDF metadata with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
+// PageCount is not available in this implementation.
+func (engine *LibreOfficePdfEngine) PageCount(ctx context.Context, logger *slog.Logger, inputPath string) (int, error) {
+	return 0, fmt.Errorf("page count with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
 
-	return err
+// WriteBookmarks is not available in this implementation.
+func (engine *LibreOfficePdfEngine) WriteBookmarks(ctx context.Context, logger *slog.Logger, inputPath string, bookmarks []gotenberg.Bookmark) error {
+	return fmt.Errorf("write PDF bookmarks with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
+// ReadBookmarks is not available in this implementation.
+func (engine *LibreOfficePdfEngine) ReadBookmarks(ctx context.Context, logger *slog.Logger, inputPath string) ([]gotenberg.Bookmark, error) {
+	return nil, fmt.Errorf("read PDF bookmarks with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // Encrypt is not available in this implementation.
 func (engine *LibreOfficePdfEngine) Encrypt(ctx context.Context, logger *slog.Logger, inputPath, userPassword, ownerPassword string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.Encrypt", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
-
-	err := fmt.Errorf("encrypt PDF using LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
-
-	return err
+	return fmt.Errorf("encrypt PDF using LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
-// AddAttachments is not available in this implementation.
-func (engine *LibreOfficePdfEngine) AddAttachments(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error {
-	_, span := gotenberg.Tracer().Start(ctx, "LibreOfficePdfEngine.AddAttachments", trace.WithSpanKind(trace.SpanKindInternal))
-	defer span.End()
+// EmbedFiles is not available in this implementation.
+func (engine *LibreOfficePdfEngine) EmbedFiles(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error {
+	return fmt.Errorf("embed files with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
 
-	err := fmt.Errorf("add attachments with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
-	if err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
-	}
+// EmbedFilesMetadata is not available in this implementation.
+func (engine *LibreOfficePdfEngine) EmbedFilesMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]map[string]string, inputPath string) error {
+	return fmt.Errorf("set embeds metadata with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
 
-	return err
+// Watermark is not available in this implementation.
+func (engine *LibreOfficePdfEngine) Watermark(ctx context.Context, logger *slog.Logger, inputPath string, stamp gotenberg.Stamp) error {
+	return fmt.Errorf("watermark PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
+// Stamp is not available in this implementation.
+func (engine *LibreOfficePdfEngine) Stamp(ctx context.Context, logger *slog.Logger, inputPath string, stamp gotenberg.Stamp) error {
+	return fmt.Errorf("stamp PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
+}
+
+// Rotate is not available in this implementation.
+func (engine *LibreOfficePdfEngine) Rotate(ctx context.Context, logger *slog.Logger, inputPath string, angle int, pages string) error {
+	return fmt.Errorf("rotate PDF with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
 }
 
 // Interface guards.

pkg/modules/libreoffice/routes.go

@@ -31,7 +31,13 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 			pdfFormats := pdfengines.FormDataPdfFormats(form)
 			metadata := pdfengines.FormDataPdfMetadata(form, false)
 			userPassword, ownerPassword := pdfengines.FormDataPdfEncrypt(form)
-			attachmentsPaths := pdfengines.FormDataPdfAttachments(form)
+			embedPaths := pdfengines.FormDataPdfEmbeds(form)
+			watermark := pdfengines.FormDataPdfWatermark(form, false)
+			watermarkFile := pdfengines.FormDataPdfWatermarkFile(form)
+			stamp := pdfengines.FormDataPdfStamp(form, false)
+			stampFile := pdfengines.FormDataPdfStampFile(form)
+			angle, rotatePages := pdfengines.FormDataPdfRotate(form, false)
+			embedsMetadata := pdfengines.FormDataPdfEmbedsMetadata(form)
 
 			zeroValuedSplitMode := gotenberg.SplitMode{}
 
@@ -60,6 +66,27 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				quality                         int
 				reduceImageResolution           bool
 				maxImageResolution              int
+				nativeWatermarkText             string
+				nativeWatermarkColor            int
+				initialView                     int
+				initialPage                     int
+				magnification                   int
+				zoom                            int
+				pageLayout                      int
+				firstPageOnLeft                 bool
+				resizeWindowToInitialPage       bool
+				centerWindow                    bool
+				openInFullScreenMode            bool
+				displayPDFDocumentTitle         bool
+				hideViewerMenubar               bool
+				hideViewerToolbar               bool
+				hideViewerWindowControls        bool
+				useTransitionEffects            bool
+				openBookmarkLevels              int
+				nativeWatermarkFontHeight       int
+				nativeWatermarkRotateAngle      int
+				nativeWatermarkFontName         string
+				nativeTiledWatermarkText        string
 				nativePdfFormats                bool
 				merge                           bool
 				flatten                         bool
@@ -86,6 +113,105 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				Bool("skipEmptyPages", &skipEmptyPages, defaultOptions.SkipEmptyPages).
 				Bool("addOriginalDocumentAsStream", &addOriginalDocumentAsStream, defaultOptions.AddOriginalDocumentAsStream).
 				Bool("singlePageSheets", &singlePageSheets, defaultOptions.SinglePageSheets).
+				Custom("initialView", func(value string) error {
+					if value == "" {
+						initialView = defaultOptions.InitialView
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					if !slices.Contains([]int{0, 1, 2}, intValue) {
+						return errors.New("value is not 0, 1 or 2")
+					}
+					initialView = intValue
+					return nil
+				}).
+				Custom("initialPage", func(value string) error {
+					if value == "" {
+						initialPage = defaultOptions.InitialPage
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					if intValue < 1 {
+						return errors.New("value is inferior to 1")
+					}
+					initialPage = intValue
+					return nil
+				}).
+				Custom("magnification", func(value string) error {
+					if value == "" {
+						magnification = defaultOptions.Magnification
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					if !slices.Contains([]int{0, 1, 2, 3, 4}, intValue) {
+						return errors.New("value is not 0, 1, 2, 3 or 4")
+					}
+					magnification = intValue
+					return nil
+				}).
+				Custom("zoom", func(value string) error {
+					if value == "" {
+						zoom = defaultOptions.Zoom
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					if intValue < 1 {
+						return errors.New("value is inferior to 1")
+					}
+					zoom = intValue
+					return nil
+				}).
+				Custom("pageLayout", func(value string) error {
+					if value == "" {
+						pageLayout = defaultOptions.PageLayout
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					if !slices.Contains([]int{0, 1, 2, 3}, intValue) {
+						return errors.New("value is not 0, 1, 2 or 3")
+					}
+					pageLayout = intValue
+					return nil
+				}).
+				Bool("firstPageOnLeft", &firstPageOnLeft, defaultOptions.FirstPageOnLeft).
+				Bool("resizeWindowToInitialPage", &resizeWindowToInitialPage, defaultOptions.ResizeWindowToInitialPage).
+				Bool("centerWindow", &centerWindow, defaultOptions.CenterWindow).
+				Bool("openInFullScreenMode", &openInFullScreenMode, defaultOptions.OpenInFullScreenMode).
+				Bool("displayPDFDocumentTitle", &displayPDFDocumentTitle, defaultOptions.DisplayPDFDocumentTitle).
+				Bool("hideViewerMenubar", &hideViewerMenubar, defaultOptions.HideViewerMenubar).
+				Bool("hideViewerToolbar", &hideViewerToolbar, defaultOptions.HideViewerToolbar).
+				Bool("hideViewerWindowControls", &hideViewerWindowControls, defaultOptions.HideViewerWindowControls).
+				Bool("useTransitionEffects", &useTransitionEffects, defaultOptions.UseTransitionEffects).
+				Custom("openBookmarkLevels", func(value string) error {
+					if value == "" {
+						openBookmarkLevels = defaultOptions.OpenBookmarkLevels
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					if intValue != -1 && (intValue < 1 || intValue > 10) {
+						return errors.New("value is not -1 or between 1 and 10")
+					}
+					openBookmarkLevels = intValue
+					return nil
+				}).
 				Bool("losslessImageCompression", &losslessImageCompression, defaultOptions.LosslessImageCompression).
 				Custom("quality", func(value string) error {
 					if value == "" {
@@ -128,6 +254,48 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 					maxImageResolution = intValue
 					return nil
 				}).
+				String("nativeWatermarkText", &nativeWatermarkText, defaultOptions.NativeWatermarkText).
+				Custom("nativeWatermarkColor", func(value string) error {
+					if value == "" {
+						nativeWatermarkColor = defaultOptions.NativeWatermarkColor
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					nativeWatermarkColor = intValue
+					return nil
+				}).
+				Custom("nativeWatermarkFontHeight", func(value string) error {
+					if value == "" {
+						nativeWatermarkFontHeight = defaultOptions.NativeWatermarkFontHeight
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					if intValue < 0 {
+						return errors.New("value is inferior to 0")
+					}
+					nativeWatermarkFontHeight = intValue
+					return nil
+				}).
+				Custom("nativeWatermarkRotateAngle", func(value string) error {
+					if value == "" {
+						nativeWatermarkRotateAngle = defaultOptions.NativeWatermarkRotateAngle
+						return nil
+					}
+					intValue, err := strconv.Atoi(value)
+					if err != nil {
+						return err
+					}
+					nativeWatermarkRotateAngle = intValue
+					return nil
+				}).
+				String("nativeWatermarkFontName", &nativeWatermarkFontName, defaultOptions.NativeWatermarkFontName).
+				String("nativeTiledWatermarkText", &nativeTiledWatermarkText, defaultOptions.NativeTiledWatermarkText).
 				Bool("nativePdfFormats", &nativePdfFormats, true).
 				Bool("merge", &merge, false).
 				Bool("flatten", &flatten, false).
@@ -136,6 +304,21 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				return fmt.Errorf("validate form data: %w", err)
 			}
 
+			if (watermark.Source == gotenberg.StampSourceImage || watermark.Source == gotenberg.StampSourcePDF) && watermarkFile != "" {
+				watermark.Expression = watermarkFile
+			}
+			if (stamp.Source == gotenberg.StampSourceImage || stamp.Source == gotenberg.StampSourcePDF) && stampFile != "" {
+				stamp.Expression = stampFile
+			}
+
+			err = pdfengines.ValidatePdfFormatsCompat(pdfFormats, userPassword, embedPaths)
+			if err != nil {
+				return err
+			}
+
+			hasPostProcessing := watermark.Source != "" || stamp.Source != "" || angle != 0 ||
+				len(embedPaths) > 0 || len(metadata) > 0 || flatten
+
 			outputPaths := make([]string, len(inputPaths))
 			for i, inputPath := range inputPaths {
 				outputPaths[i] = ctx.GeneratePath(".pdf")
@@ -159,15 +342,37 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 					SkipEmptyPages:                  skipEmptyPages,
 					AddOriginalDocumentAsStream:     addOriginalDocumentAsStream,
 					SinglePageSheets:                singlePageSheets,
+					InitialView:                     initialView,
+					InitialPage:                     initialPage,
+					Magnification:                   magnification,
+					Zoom:                            zoom,
+					PageLayout:                      pageLayout,
+					FirstPageOnLeft:                 firstPageOnLeft,
+					ResizeWindowToInitialPage:       resizeWindowToInitialPage,
+					CenterWindow:                    centerWindow,
+					OpenInFullScreenMode:            openInFullScreenMode,
+					DisplayPDFDocumentTitle:         displayPDFDocumentTitle,
+					HideViewerMenubar:               hideViewerMenubar,
+					HideViewerToolbar:               hideViewerToolbar,
+					HideViewerWindowControls:        hideViewerWindowControls,
+					UseTransitionEffects:            useTransitionEffects,
+					OpenBookmarkLevels:              openBookmarkLevels,
 					LosslessImageCompression:        losslessImageCompression,
 					Quality:                         quality,
 					ReduceImageResolution:           reduceImageResolution,
 					MaxImageResolution:              maxImageResolution,
+					NativeWatermarkText:             nativeWatermarkText,
+					NativeWatermarkColor:            nativeWatermarkColor,
+					NativeWatermarkFontHeight:       nativeWatermarkFontHeight,
+					NativeWatermarkRotateAngle:      nativeWatermarkRotateAngle,
+					NativeWatermarkFontName:         nativeWatermarkFontName,
+					NativeTiledWatermarkText:        nativeTiledWatermarkText,
 				}
 
-				if nativePdfFormats && splitMode == zeroValuedSplitMode {
+				if nativePdfFormats && splitMode == zeroValuedSplitMode && !hasPostProcessing {
 					// Only natively apply given PDF formats if we're not
-					// splitting the PDF later.
+					// splitting the PDF later and no post-processing features
+					// are enabled (as they would degrade compliance).
 					options.PdfFormats = pdfFormats
 				}
 
@@ -216,7 +421,8 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 					// document.docx -> document.docx.pdf, so that split naming
 					// document.docx_0.pdf, etc.
 					for i, inputPath := range inputPaths {
-						outputPath := fmt.Sprintf("%s.pdf", inputPath)
+						originalName := ctx.OriginalFilename(inputPath)
+						outputPath := ctx.GeneratePathFromFilename(originalName + ".pdf")
 
 						err = ctx.Rename(outputPaths[i], outputPath)
 						if err != nil {
@@ -233,7 +439,32 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				}
 			}
 
-			if !nativePdfFormats || (nativePdfFormats && splitMode != zeroValuedSplitMode) {
+			err = pdfengines.WatermarkStub(ctx, engine, watermark, outputPaths)
+			if err != nil {
+				return fmt.Errorf("watermark PDFs: %w", err)
+			}
+
+			err = pdfengines.StampStub(ctx, engine, stamp, outputPaths)
+			if err != nil {
+				return fmt.Errorf("stamp PDFs: %w", err)
+			}
+
+			err = pdfengines.RotateStub(ctx, engine, angle, rotatePages, outputPaths)
+			if err != nil {
+				return fmt.Errorf("rotate PDFs: %w", err)
+			}
+
+			if flatten {
+				err = pdfengines.FlattenStub(ctx, engine, outputPaths)
+				if err != nil {
+					return fmt.Errorf("flatten PDFs: %w", err)
+				}
+			}
+
+			needsConvertStub := !nativePdfFormats ||
+				(nativePdfFormats && splitMode != zeroValuedSplitMode) ||
+				(nativePdfFormats && hasPostProcessing)
+			if needsConvertStub {
 				convertOutputPaths, err := pdfengines.ConvertStub(ctx, engine, pdfFormats, outputPaths)
 				if err != nil {
 					return fmt.Errorf("convert PDFs: %w", err)
@@ -253,21 +484,21 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 				}
 			}
 
-			err = pdfengines.AddAttachmentsStub(ctx, engine, attachmentsPaths, outputPaths)
-			if err != nil {
-				return fmt.Errorf("add attachments into PDFs: %w", err)
-			}
-
+			// Metadata, embeds are written after Convert, as LibreOffice
+			// strips them during PDF/A conversion.
 			err = pdfengines.WriteMetadataStub(ctx, engine, metadata, outputPaths)
 			if err != nil {
 				return fmt.Errorf("write metadata: %w", err)
 			}
 
-			if flatten {
-				err = pdfengines.FlattenStub(ctx, engine, outputPaths)
-				if err != nil {
-					return fmt.Errorf("flatten PDFs: %w", err)
-				}
+			err = pdfengines.EmbedFilesStub(ctx, engine, embedPaths, outputPaths)
+			if err != nil {
+				return fmt.Errorf("embed files into PDFs: %w", err)
+			}
+
+			err = pdfengines.EmbedFilesMetadataStub(ctx, engine, embedsMetadata, outputPaths)
+			if err != nil {
+				return fmt.Errorf("set embeds metadata: %w", err)
 			}
 
 			err = pdfengines.EncryptPdfStub(ctx, engine, userPassword, ownerPassword, outputPaths)
@@ -278,7 +509,8 @@ func convertRoute(libreOffice libreofficeapi.Uno, engine gotenberg.PdfEngine) ap
 			if len(outputPaths) > 1 && splitMode == zeroValuedSplitMode {
 				// If .zip archive, document.docx -> document.docx.pdf.
 				for i, inputPath := range inputPaths {
-					outputPath := fmt.Sprintf("%s.pdf", inputPath)
+					originalName := ctx.OriginalFilename(inputPath)
+					outputPath := ctx.GeneratePathFromFilename(originalName + ".pdf")
 
 					err = ctx.Rename(outputPaths[i], outputPath)
 					if err != nil {