2041449 - Update PDF.js to new version 52d574c53985b665693935fec5be86de20b73a33 from 2026-05-21 19:01:42

Status: RESOLVED DUPLICATE of bug 2041505

(Firefox :: PDF Viewer, enhancement)

Description

[Update Bot]

This update covers 10 commits. Here are the overall diff statistics, and then the commit information.

---

toolkit/components/pdfjs/PdfJsDefaultPrefs.js | 1 +
toolkit/components/pdfjs/content/build/pdf.mjs | 435 +++++++++++++-
toolkit/components/pdfjs/content/build/pdf.scripting.mjs | 4 +-
toolkit/components/pdfjs/content/build/pdf.worker.mjs | 6 +-
toolkit/components/pdfjs/content/web/viewer-geckoview.css | 3 +-
toolkit/components/pdfjs/content/web/viewer-geckoview.mjs | 60 +-
toolkit/components/pdfjs/content/web/viewer.css | 31 +-
toolkit/components/pdfjs/content/web/viewer.mjs | 271 ++++++-
toolkit/components/pdfjs/moz.yaml | 4 +-
9 files changed, 730 insertions(+), 85 deletions(-)

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0f909879275e8aacbe5c794aac1c0af2c9e0e1bb by Calixte Denizet <[e-mail]>

https://github.com/mozilla/pdf.js/commit/0f909879275e8aacbe5c794aac1c0af2c9e0e1bb
Authored: 2026-05-20 19:30:22 +0200
Committed: 2026-05-21 16:39:34 +0200

Fix 'Select all' after #20981

Files Modified:

• src/display/draw_layer.js
• test/integration/text_layer_spec.mjs

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74471651c79efceab7eb8b5aa0cfc2cc6085b531 by Jonas Jenwald <[e-mail]>

https://github.com/mozilla/pdf.js/commit/74471651c79efceab7eb8b5aa0cfc2cc6085b531
Authored: 2026-05-21 14:03:32 +0200
Committed: 2026-05-21 14:03:32 +0200

Extend unit-test coverage for the getPdfFilenameFromUrl helper function

Currently there's a couple of branches, specifically for dealing with corrupt URLs, that are not covered by tests.

Files Modified:

• test/unit/display_utils_spec.js

---

d79043b3afdd239f3cd8eaed2f8e5c13f33cec59 by Calixte Denizet <[e-mail]>

https://github.com/mozilla/pdf.js/commit/d79043b3afdd239f3cd8eaed2f8e5c13f33cec59
Authored: 2026-05-20 14:28:54 +0200
Committed: 2026-05-20 18:06:55 +0200

Allow merging a PDF by dropping it onto the thumbnail viewer

Drop an external PDF anywhere in the views-manager thumbnail
sidebar to merge it at the cursor, rather than always inserting
after the current page via the "Add file" button.

The drop reuses the blue separator from page-move drag so the
user can see exactly where the inserted pages will land, and the
merge path is shared with the existing picker so post-merge
selection/current-page behavior stays consistent.

Files Modified:

• test/integration/reorganize_pages_spec.mjs
• web/pdf_thumbnail_viewer.js
• web/views_manager.css

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429b469ecbfad83027f6a9a816ea3a4fc03869f5 by Jonas Jenwald <[e-mail]>

https://github.com/mozilla/pdf.js/commit/429b469ecbfad83027f6a9a816ea3a4fc03869f5
Authored: 2026-05-20 14:45:29 +0200
Committed: 2026-05-20 17:26:50 +0200

Add basic integration-tests for the PdfTextExtractor class

Files Added:

• test/integration/text_extractor_spec.mjs

Files Modified:

• test/integration/jasmine-boot.js
• web/genericcom.js

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abe8b564a346070b7fc921db0d1335fdb7ff2e1d by Jonas Jenwald <[e-mail]>

https://github.com/mozilla/pdf.js/commit/abe8b564a346070b7fc921db0d1335fdb7ff2e1d
Authored: 2026-05-20 16:39:21 +0200
Committed: 2026-05-20 16:39:21 +0200

Don't use "internal" EventBus methods in the integration-tests

This way guarantees that any and all internal viewer state has been updated first, before any test-specific code runs.

Files Modified:

• test/integration/reorganize_pages_spec.mjs

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16a9f1cafc6268e65014393c05d9504cbf4e532e by dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

https://github.com/mozilla/pdf.js/commit/16a9f1cafc6268e65014393c05d9504cbf4e532e
Authored: 2026-05-19 23:20:52 +0000
Committed: 2026-05-19 23:20:52 +0000

Bump github/codeql-action from 4.35.3 to 4.35.4

Bumps github/codeql-action from 4.35.3 to 4.35.4.

• Release notes
• Changelog
• Commits

---

updated-dependencies:

• dependency-name: github/codeql-action
  dependency-version: 4.35.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  ...

Signed-off-by: dependabot[bot] <[e-mail]>

Files Modified:

• .github/workflows/codeql.yml

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5b991730433e4d101dee44e748425a4db8f13e5a by dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

https://github.com/mozilla/pdf.js/commit/5b991730433e4d101dee44e748425a4db8f13e5a
Authored: 2026-05-19 23:19:08 +0000
Committed: 2026-05-19 23:19:08 +0000

Bump actions/create-github-app-token from 3.1.1 to 3.2.0

Bumps actions/create-github-app-token from 3.1.1 to 3.2.0.

• Release notes
• Changelog
• Commits

---

updated-dependencies:

• dependency-name: actions/create-github-app-token
  dependency-version: 3.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  ...

Signed-off-by: dependabot[bot] <[e-mail]>

Files Modified:

• .github/workflows/notify-pdf-sync.yml
• .github/workflows/update_locales.yml

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957e004e38faa2f0175d905ef09fb3ee85347961 by Titus Wormer <[e-mail]>

https://github.com/mozilla/pdf.js/commit/957e004e38faa2f0175d905ef09fb3ee85347961
Authored: 2026-03-26 12:14:14 +0100
Committed: 2026-05-19 21:10:12 +0200

Make text selection more visible (bug 1879559)

References https://bugzilla.mozilla.org/show_bug.cgi?id=1879559
(“In HCM, the text selection is barely visible”).

Continues work from @calixteman who had a partial patch.

This PR improves viewer text-selection highlighting by rendering
selection shapes in the draw layer.

• add selection overlay rendering in the draw layer
  • significant code relates to selections spanning multiple text
    layers/pages, and edges/end-of-content boundaries
• clear selection on rotate/scale/scroll/spread changes

My main question is: how should it appear?
I don’t have access to the Figma file linked on bugzilla.

In the CSS (draw_layer-builder.css) there are 3 blocks:

• default
• @supports for browsers supporting backdrop-filter
• forced-colors mode

So it’s possible to design for those (or more).
Personally, the backdrop-filter: invert(1) is the most contrast,
so perhaps it’s better to use something else as the default,
and to use invert(1) if high contrast mode is used (maybe with a
prefers-contrast media query instead)?

Files Modified:

• src/display/draw_layer.js
• src/display/filter_factory.js
• test/integration/text_layer_spec.mjs
• web/annotation_editor_layer_builder.css
• web/app.js
• web/app_options.js
• web/base_pdf_page_view.js
• web/draw_layer_builder.css
• web/draw_layer_builder.js
• web/pdf_page_view.js
• web/pdf_viewer.js
• web/text_layer_builder.css

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60591388a85499f3ff970522d98352dca15da8cc by Tim van der Meij <[e-mail]>

https://github.com/mozilla/pdf.js/commit/60591388a85499f3ff970522d98352dca15da8cc
Authored: 2026-05-19 20:16:32 +0200
Committed: 2026-05-19 21:07:26 +0200

Disable hardware acceleration for Chrome tests

This commit fixes the rendering issue that makes the "must update an
existing annotation" ink editor integration test permafail locally in
Chrome. Note that we already do this for Firefox tests, so this also
improves consistency between the two browsers.

Moreover, improve how we define Chrome options to (similar to their
Firefox counterparts) provide them in a single array, and document the
reasoning for why these options are being set more explicitly.

Fixes #21272.

Files Modified:

• test/test.mjs

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0d69cc4dcf368272d5122fe04c61ba390fcf06e0 by Tim van der Meij <[e-mail]>

https://github.com/mozilla/pdf.js/commit/0d69cc4dcf368272d5122fe04c61ba390fcf06e0
Authored: 2026-05-17 16:12:52 +0200
Committed: 2026-05-18 20:52:00 +0200

Introduce integration tests for the presentation mode functionality

This commit provides coverage for the happy flows of basic operations
like entering/exiting and changing pages.

Files Added:

• test/integration/presentation_mode_spec.mjs

Files Modified:

• test/integration/jasmine-boot.js

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Comment 2

[Update Bot]

I've submitted a try run for this commit: https://treeherder.mozilla.org/jobs?repo=try&revision=4a264b3fae5c7fe5f0e8010639c8e6ebbe6a69ad

Comment 3

[Update Bot]

Attachment: Bug 2041449 - Update PDF.js to 52d574c53985b665693935fec5be86de20b73a33

Comment 4

[Update Bot]

All the jobs in the try run succeeded. Like literally all of them, there weren't
even any intermittents. That is pretty surprising to me, so maybe you should double
check to make sure I didn't misinterpret things and that the correct tests ran...

Anyway, I've done all I can, so I'm passing to you to review and land the patch.
When reviewing, please note that this is external code, which needs a full and
careful inspection - not a rubberstamp.

Comment 5

[Update Bot]

This bug is being closed because a newer revision of the library is available.
This bug will be marked as a duplicate of it (because although this bug is older, it is superseded by the newer one).