This release contains improvements for annotations, the annotation editor, font conversion, image decoding, performance and the viewer.

Changes since v5.2.133

• Bump the stable version in pdfjs.config by @timvandermeij in #19875
• Add useractivation check for response function by @1Jesper1 in #19855
• Add a basic navigator polyfill for older Node.js versions by @Snuffleupagus in #19876
• Fix the bbox when saving a rotated text field (bug 1963407) by @calixteman in #19881
• Assert that numberToString is called with a number (issue 19877) by @Snuffleupagus in #19880
• Don't update the visible canvas at 60 fps (bug 1936605) by @calixteman in #19856
• Allow to, optionally, keep Unicode escape sequences in stringToPDFString (PR 17331 follow-up) by @Snuffleupagus in #19884
• Fix arguments in toStyle call in CheckButton by @gpanakkal in #19883
• Remove the BasePdfManager.prototype.catalog getter by @Snuffleupagus in #19888
• Simplify the serializeXfaData method and related code by @Snuffleupagus in #19887
• Simplify the loadXfaImages method and related code by @Snuffleupagus in #19885
• Slightly re-factor how we pre-load fonts and images in XFA documents by @Snuffleupagus in #19889
• Downscale jpeg2000 images, if needed, while decoding them by @calixteman in #19893
• Unify method return values in the ObjectLoader class, and simplify how the ObjectLoader is used by @Snuffleupagus in #19895
• Update the Firefox repository used in external/importL10n/locales.mjs by @Snuffleupagus in #19905
• Add a pref in order to cap the canvas area to a factor of the window one (bug 1958015) by @calixteman in #19755
• Shorten the code in the src/core/document.js file by @Snuffleupagus in #19902
• Shorten the PDFDocument.prototype.fieldObjects getter slightly by @Snuffleupagus in #19903
• Improve validation in the Catalog.prototype.openAction getter by @Snuffleupagus in #19913
• Decode appearance keys of checkboxes by @calixteman in #19911
• Reduce duplication when computing the maximum canvas pixels by @Snuffleupagus in #19915
• Preserve webpack/vite ignore comments when minifying by @nicolo-ribaudo in #19922
• Update qcms build by @calixteman in #19924
• [Editor] Keep aspect ratio when rescaling an image before being processed for a signature (bug 1962819) by @calixteman in #19925
• Run CI tests in Node.js version 24 by @Snuffleupagus in #19897
• Remove unused OpenJPEG wasm fallback logic by @nicolo-ribaudo in #19923
• Prefer the /Metadata, when available, in the document properties dialog (bug 1966086) by @Snuffleupagus in #19929
• Minify the js code when building for Firefox (bug 1965003) by @calixteman in #19934
• Allow using the workerPort option in Firefox by @Snuffleupagus in #19936
• Use the worker created in the child actor (bug 1966721) by @calixteman in #19935
• Bump undici from 6.21.1 to 6.21.3 by @dependabot in #19933
• Enable the unicorn/prefer-import-meta-properties ESLint plugin rule by @Snuffleupagus in #19916
• chore: remove redundant word in comment by @studystill in #19937
• Add a couple of new eslint-plugin-unicorn rules by @Snuffleupagus in #19917
• Replace PDFWorker.fromPort with a generic PDFWorker.create method by @Snuffleupagus in #19943
• Update dependencies and translations to the most recent versions by @timvandermeij in #19942
• Ensure that the viewer clears the workerPort option when using "fake" workers by @Snuffleupagus in #19939
• Use private fields in the PDFDataRangeTransport class by @Snuffleupagus in #19944
• Remove Node.js-specific checks when using the Fetch API by @Snuffleupagus in #19945
• Fix intermittent failure in the stamp editor's undo-related integration tests by @timvandermeij in #19949
• Fix missing await for asynchronous method calls in the integration tests by @timvandermeij in #19950
• [api-minor] Create the css color to use with the canvas in the worker by @calixteman in #19953
• Support Type3 fonts with an incomplete /FontDescriptor dictionary (issue 19954) by @Snuffleupagus in #19955
• Fix pdfjsPreloadedWorker when it's undefined by @calixteman in #19959
• Remove all the useless subarrays when using qcms. by @calixteman in #19957
• Bump library version to 5.3 by @Snuffleupagus in #19960
• Don't create a useless subarray when getting image data from a flate stream by @calixteman in #19958
• Revert "Minify the js code when building for Firefox (bug 1965003)" by @calixteman in #19967
• Improve how the PDF.js version/commit information is exposed in the built files by @Snuffleupagus in #19956
• Show the op dispatched by constructPath in the debugger by @nicolo-ribaudo in #19961
• Ignore empty paths when optimizing constructPath operations (issue 19971) by @Snuffleupagus in #19972
• Replace semi-private fields/methods with actual private ones in src/core/catalog.js by @Snuffleupagus in #19964
• Move a few helper functions/classes out of the src/display/api.js file by @Snuffleupagus in #19962
• Fix the colors of disabled buttons in the dialogs by @calixteman in #19975
• [Editor] Change mode when double clicking on an editor by @calixteman in #19969
• Fix intermittent failure in the "supports specifying a custom origin" viewer integration test by @timvandermeij in #19952