chore(deps): update dependency Pillow to v11.3.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
Pillow (changelog)	==11.0.0 -> ==11.3.0

---

Release Notes

python-pillow/Pillow (Pillow)

v11.3.0

Compare Source

https://pillow.readthedocs.io/en/stable/releasenotes/11.3.0.html

Deprecations

• Deprecate fromarray mode argument #​9018 [@​radarhere]
• Deprecate saving I mode images as PNG #​9023 [@​radarhere]

Documentation

• Added release notes for #​9041 #​9042 [@​radarhere]
• Add release notes for #​8912 and #​8969 #​9019 [@​radarhere]
• ImageFont does not handle multiline text #​9000 [@​radarhere]
• Updated Ubuntu CI targets #​8988 [@​radarhere]
• Update MinGW package names #​8987 [@​H4M5TER]
• Updated docstring #​8943 [@​radarhere]
• Mention that tobytes() with the raw encoder uses Pack.c #​8878 [@​radarhere]
• Refactor docs Makefile #​8933 [@​hugovk]
• Add template for quarterly release issue #​8932 [@​aclark4life]
• Add list of third party plugins #​8910 [@​radarhere]
• Update redirected URL #​8919 [@​radarhere]
• Docs: use sentence case for headers #​8914 [@​hugovk]
• Docs: remove unused Makefile targets #​8917 [@​hugovk]
• Remove indentation from lists #​8915 [@​radarhere]
• Python 3.13 is tested on Arch #​8894 [@​radarhere]
• Move XV Thumbnails to read only section #​8893 [@​aclark4life]
• Updated macOS tested Pillow versions #​8890 [@​radarhere]

Dependencies

• Add AVIF to wheels using only aomenc and dav1d AVIF codecs for reduced size #​8858 [@​fdintino]
• Use same AVIF URL when fetching dependency #​8871 [@​radarhere]
• Update dependency mypy to v1.16.1 #​9026 [@​renovate[bot]]
• Update libpng to 1.6.49 #​9014 [@​radarhere]
• Update dependency cibuildwheel to v3 #​9010 [@​renovate[bot]]
• Updated libjpeg-turbo to 3.1.1 #​9009 [@​radarhere]
• Update dependency mypy to v1.16.0 #​8991 [@​renovate[bot]]
• Updated libpng to 1.6.48 #​8940 [@​radarhere]
• Updated Ghostscript to 10.5.1 #​8939 [@​radarhere]
• Updated harfbuzz to 11.2.1 #​8937 [@​radarhere]
• Updated libavif to 1.3.0 #​8949 [@​radarhere]
• Update dependency cibuildwheel to v2.23.3 #​8931 [@​renovate[bot]]
• Updated harfbuzz to 11.1.0 #​8904 [@​radarhere]

Testing

• Add match parameter to pytest.warns() #​9038 [@​hugovk]
• Increase pytest verbosity #​9040 [@​radarhere]
• Improve SgiImagePlugin test coverage #​8896 [@​radarhere]
• Update ruff pre-commit ID #​8994 [@​radarhere]
• Only check DHT marker for libjpeg-turbo #​9025 [@​radarhere]
• Improve BLP tests #​9020 [@​radarhere]
• Fix warning #​9016 [@​radarhere]
• Test Python 3.14t on macOS and Linux #​9011 [@​radarhere]
• Only accept missing tkinter when building wheels on Windows #​8981 [@​radarhere]
• Fix test #​8996 [@​radarhere]
• Stop testing deprecated Windows Server 2019 runner image #​8989 [@​radarhere]
• Run slow tests on valgrind, but without timeout #​8975 [@​radarhere]
• Close file pointer earlier #​8895 [@​radarhere]
• Added Fedora 42 #​8899 [@​radarhere]
• Removed Fedora 40 #​8887 [@​radarhere]

Type hints

• Assert palette is not None #​8877 [@​radarhere]
• Do not import type checking #​8854 [@​radarhere]
• Improve type hints #​8883 [@​radarhere]
• Update dependency mypy to v1.16.0 #​8991 [@​renovate[bot]]

Other changes

• Updated check script paths #​9052 [@​radarhere]
• Raise FileNotFoundError when opening an empty path #​9048 [@​radarhere]
• Handle IPTC TIFF tags with incorrect type #​8925 [@​radarhere]
• Do not update palette for L mode GIF frame #​8924 [@​radarhere]
• Use save parameters as encoderinfo defaults #​9001 [@​radarhere]
• Add support for iOS #​9030 [@​freakboy3742]
• Fix qtables and quality scaling #​8879 [@​Kyliroco]
• Read 16-bit McIdas images into I;16B mode to allow for memory mapping #​9046 [@​radarhere]
• Support ttb multiline text #​8730 [@​radarhere]
• Use unpacking #​9044 [@​radarhere]
• Fix saving MPO with more than one appended image #​8979 [@​radarhere]
• Restore original encoderinfo after saving #​8942 [@​radarhere]
• Return PixelAccess from first load of ICO and IPTC images #​8922 [@​radarhere]
• Improve justifying text #​8905 [@​radarhere]
• Set color table fourth channel to zero for 1 and L mode when saving BMP #​8889 [@​radarhere]
• Improve reading XPM images #​8874 [@​radarhere]
• Fix buffer overflow when saving compressed DDS images #​9041 [@​radarhere]
• Use PEP 489 multi-phase initialization #​8983 [@​radarhere]
• Support saving I;16L TIFF images #​9015 [@​radarhere]
• Do not call sys.executable in ImageShow in PyInstaller application #​9028 [@​radarhere]
• Search for libtiff library file first on Windows and macOS #​9034 [@​radarhere]
• Fix libtiff cleanup #​9002 [@​radarhere]
• Use percent formatting for _dbg calls #​9035 [@​radarhere]
• Removed ImageCmsProfile._set method #​9032 [@​radarhere]
• Added Python 3.14 macOS x86-64 wheels #​9031 [@​radarhere]
• Support writing QOI images #​9007 [@​thisismypassport]
• Simplify C error handling #​9021 [@​radarhere]
• Add Python 3.14 beta wheels #​9012 [@​hugovk]
• Remove padding between interleaved PCX palette data #​9005 [@​radarhere]
• Start QOI decoding with a zero-initialized array of previously seen pixels #​9008 [@​radarhere]
• Correct drawing I;16 horizontal lines #​8985 [@​radarhere]
• Reduce number of bytes read for PCX header #​9004 [@​radarhere]
• Handle XMP data from an UNDEFINED TIFF tag #​8997 [@​radarhere]
• Do not decode bytes in PPM error message #​8958 [@​radarhere]
• Parse XMP tag bytes without decoding to string #​8960 [@​radarhere]
• Clear TIFF core image if memory mapping was used for last load #​8962 [@​radarhere]
• Use mask in C when drawing wide polygon lines #​8984 [@​radarhere]
• Simplify code #​8863 [@​radarhere]
• Call startswith once with a tuple #​8998 [@​radarhere]
• [pre-commit.ci] pre-commit autoupdate #​8993 [@​pre-commit-ci[bot]]
• Use ImageFile.MAXBLOCK in tobytes() #​8906 [@​radarhere]
• Removed unreachable code #​8918 [@​radarhere]
• Valgrind Memory Leak Checking #​8954 [@​wiredfool]
• Add parallel test target, using pytest-xdist #​8972 [@​wiredfool]
• Add support for flat uint8 arrow arrays for multi channel images #​8908 [@​wiredfool]
• Removed CMAKE_POLICY_VERSION_MINIMUM=3.5 for libavif #​8973 [@​radarhere]
• Reduced number of bytes read in WMF header #​8964 [@​radarhere]
• Do not build against libavif < 1 #​8969 [@​radarhere]
• Improved support for Python 3.14 #​8948 [@​radarhere]
• [pre-commit.ci] pre-commit autoupdate #​8944 [@​pre-commit-ci[bot]]
• Allow loading ImageFile state from Pillow < 11.2.1 #​8938 [@​radarhere]
• Remove outdated comment #​8929 [@​radarhere]
• Add support for Grim in Wayland sessions ImageGrab #​8912 [@​AdianKozlica]
• Add make [-C docs] htmllive to rebuild and reload HTML files #​8913 [@​hugovk]
• Build Windows arm64 wheels on arm64 runner #​8898 [@​radarhere]

v11.2.1

Compare Source

https://pillow.readthedocs.io/en/stable/releasenotes/11.2.1.html

Deprecations

• Moved get_child_images() to ImageFile #​8689 [@​radarhere]

Documentation

• Add 11.2.1 release notes #​8885 [@​radarhere]
• Added avif to config settings #​8875 [@​radarhere]
• Added release notes for #​8330 #​8853 [@​radarhere]
• Added release notes for #​8781 and #​8837 #​8843 [@​radarhere]
• Added media_white_point to ImageCms documentation #​8829 [@​radarhere]
• Removed FIXME #​8825 [@​radarhere]
• Updated comment #​8822 [@​radarhere]
• Added release notes for #​8807 #​8824 [@​radarhere]
• DXT3 images are read in RGBA mode #​8817 [@​radarhere]
• JPEG comments are from the COM marker #​8788 [@​radarhere]
• Update Sphinx to 8.2 to remove nitpick ignore #​8763 [@​radarhere]
• Updated AffineTransform docstring to mention it uses the inverse matrix #​8735 [@​radarhere]
• Added MozJPEG documentation #​8699 [@​radarhere]
• Added Sphinx configuration key #​8691 [@​radarhere]
• Updated macOS tested Pillow versions #​8654 [@​radarhere]

Dependencies

• Updated xz to 5.8.1 #​8868 [@​radarhere]
• Updated harfbuzz to 11.0.1 #​8870 [@​radarhere]
• Update scientific-python/upload-nightly-action action to v0.6.2 #​8865 [@​renovate[bot]]
• Updated xz to 5.8.0 in macOS and Linux wheels, but not on manylinux2014 #​8836 [@​radarhere]
• Update dependency cibuildwheel to v2.23.2 #​8832 [@​renovate[bot]]
• Updated harfbuzz to 11.0.0 #​8830 [@​radarhere]
• Update dependency cibuildwheel to v2.23.1 #​8818 [@​renovate[bot]]
• Updated Ghostscript to 10.5.0 #​8814 [@​radarhere]
• Updated libtiff to 4.7.0 #​8812 [@​radarhere]
• [pre-commit.ci] pre-commit autoupdate #​8795 [@​pre-commit-ci[bot]]
• Updated harfbuzz to 10.4.0 #​8770 [@​radarhere]
• Update dependency mypy to v1.15.0 #​8791 [@​renovate[bot]]
• Updated libpng to 1.6.47 #​8764 [@​radarhere]
• Updated lcms2 to 2.17 #​8742 [@​radarhere]
• Update dependency cibuildwheel to v2.23.0 #​8785 [@​renovate[bot]]
• Updated zlib-ng to 2.2.4 #​8745 [@​radarhere]
• Updated libimagequant to 4.3.4 on Windows #​8744 [@​radarhere]
• [pre-commit.ci] pre-commit autoupdate #​8729 [@​pre-commit-ci[bot]]
• Updated harfbuzz to 10.2.0 #​8688 [@​radarhere]
• Updated xz to 5.6.4 #​8711 [@​radarhere]
• Updated libpng to 1.6.46 #​8712 [@​radarhere]
• Updated libimagequant to 4.3.4 #​8710 [@​radarhere]
• Updated libpng to 1.6.45 #​8670 [@​radarhere]
• Update cygwin/cygwin-install-action action to v5 #​8675 [@​renovate[bot]]
• [pre-commit.ci] pre-commit autoupdate #​8665 [@​pre-commit-ci[bot]]
• Updated freetype to 2.13.3 in macOS and Linux wheels #​8653 [@​radarhere]
• Upgrade zlib-ng to 2.2.3 #​8656 [@​hugovk]

Testing

• Fixed unclosed file warning #​8847 [@​radarhere]
• Assert image type #​8619 [@​radarhere]
• Parametrize tests #​8838 [@​radarhere]
• Change back to actions/setup-python #​8833 [@​radarhere]
• Simplified test code #​8823 [@​radarhere]
• Improved FliImagePlugin test coverage #​8806 [@​radarhere]
• Install libtiff-dev on Ubuntu GitHub Actions #​8816 [@​radarhere]
• Test using _seek to skip frames #​8804 [@​radarhere]
• Improved PcxImagePlugin test coverage #​8797 [@​radarhere]
• Use match argument #​8801 [@​radarhere]
• Improved BdfFontFile test coverage #​8783 [@​radarhere]
• Revert "Do not install libimagequant" #​8778 [@​radarhere]
• Improved FtexImagePlugin test coverage #​8766 [@​radarhere]
• Improved FontFile test coverage #​8771 [@​radarhere]
• Improved MpoImagePlugin test coverage #​8765 [@​radarhere]
• Improved SunImagePlugin coverage #​8762 [@​radarhere]
• Improve TarIO test coverage #​8759 [@​radarhere]
• Improve type checking in tests #​8618 [@​radarhere]
• Add PyPy3.11 to CI #​8758 [@​hugovk]
• Don't call make clean or pip in tox #​8754 [@​hugovk]
• Don't shadow builtin open #​8756 [@​radarhere]
• Removed unused test code #​8752 [@​radarhere]
• Use monkeypatch #​8747 [@​radarhere]
• Do not install libimagequant on MinGW #​8724 [@​radarhere]
• Use getpixel() instead of load() #​8727 [@​radarhere]
• Revert "Ignore brew dependencies for libraqm on macOS 13" #​8725 [@​radarhere]
• Fixed exceptions when closing AppendingTiffWriter #​8723 [@​radarhere]
• Fixed unclosed file warnings #​8705 [@​radarhere]
• Use monkeypatch #​8707 [@​radarhere]
• Use Ubuntu 22.04 for 24.04 ppc64le and s390x #​8713 [@​radarhere]
• Updated Ubuntu arm to 24.04 with arm64 runner #​8700 [@​radarhere]
• Test oldest Python on 32-bit Windows 2019 and remove AppVeyor #​8525 [@​hugovk]
• Corrected argument types #​8681 [@​radarhere]
• Test Python 3.14 pre-release #​8690 [@​radarhere]
• Skip test_embeddable if compiler cannot be initialized #​8686 [@​radarhere]
• Improved test coverage #​8679 [@​radarhere]
• Removed xfail for test_embeddable on Python 3.13 #​8683 [@​radarhere]
• Use python-numpy and python-olefile instead of virtual python3 packages #​8682 [@​hugovk]
• Use python-pip instead of python3-pip in MinGW #​8678 [@​radarhere]
• Use ImageFile._Tile #​8666 [@​radarhere]
• Improved SPIDER test coverage #​8668 [@​radarhere]
• Removed unused image open #​8649 [@​radarhere]
• PngImageFile text is a property #​8648 [@​radarhere]
• Trigger wheel builds from changes in pyproject.toml #​8674 [@​radarhere]

Type hints

• Added fromarrow type hints #​8867 [@​radarhere]
• Assert image type #​8619 [@​radarhere]
• Check that _fp type is not DeferredError before use #​8640 [@​radarhere]
• Corrected type check #​8760 [@​radarhere]
• Improve type checking in tests #​8618 [@​radarhere]
• Corrected argument types #​8681 [@​radarhere]
• Use ImageFile._Tile #​8666 [@​radarhere]
• Added return types #​8639 [@​radarhere]
• Add overloads for exif_transpose #​8657 [@​cdce8p]

Other changes

• Do not include libavif in wheels #​8876 [@​radarhere]
• Remove GPL v2 from FreeType license #​8884 [@​radarhere]
• [pre-commit.ci] pre-commit autoupdate #​8873 [@​pre-commit-ci[bot]]
• Replace deprecated classifier with licence expression (PEP 639) #​8850 [@​hugovk]
• Fixed conversion of AVIF image rotation property to EXIF orientation #​8866 [@​fdintino]
• Removed condition that is always true #​8862 [@​radarhere]
• Use multibuild build_github #​8861 [@​radarhere]
• Include filename in ImageFile state #​8859 [@​radarhere]
• Add KDE Wayland support for ImageGrab #​8842 [@​AdianKozlica]
• Only change readonly if saved filename matches opened filename #​8852 [@​radarhere]
• Allow HWND to be passed to ImageGrab.grab() on Windows #​8516 [@​radarhere]
• Allow cmake<4 when building libavif and libtiff #​8851 [@​radarhere]
• Image -> Arrow support #​8330 [@​wiredfool]
• Add AVIF plugin (decoder + encoder using libavif) #​5201 [@​fdintino]
• Updated xz to 5.8.0 on manylinux2014 by removing po4a dependency #​8848 [@​radarhere]
• Revert to zlib on macOS < 10.15 #​8772 [@​radarhere]
• Close TarIO file handle on error #​8846 [@​radarhere]
• Do not import TYPE_CHECKING #​8844 [@​radarhere]
• Enable memory mapping on PyPy #​8840 [@​radarhere]
• Corrected Palm P mode save #​8685 [@​radarhere]
• Improved connecting discontiguous corners #​8659 [@​radarhere]
• Only read until the offset of the next tile #​8609 [@​radarhere]
• Added USE_RAW_ALPHA for BMP images #​8602 [@​radarhere]
• Fixed orientation when opening YCbCr TIFF images #​8556 [@​radarhere]
• Allow loading of EMF images at a given DPI #​8536 [@​radarhere]
• Skip failing records when rendering WMF images #​8506 [@​radarhere]
• If append_images is populated, default save_all to True #​8781 [@​radarhere]
• Added GimpPaletteFile frombytes() to allow for unlimited parsing #​8826 [@​radarhere]
• Do not load image during save if file extension is unknown #​8835 [@​radarhere]
• Do not convert BC1 LUT to UINT32 #​8837 [@​radarhere]
• Start from zero index when reading GimpPaletteFile #​8805 [@​radarhere]
• Support saving DDS images with pixel formats #​8807 [@​radarhere]
• If every TIFF tile covers the image, only use the last offset #​8820 [@​radarhere]
• Use docker/setup-qemu-action #​8819 [@​radarhere]
• Replace deprecated Renovate schedule with cron syntax #​8810 [@​hugovk]
• Allow coords to be sequence of lists #​8800 [@​radarhere]
• Use ABCMeta in classes with abstractmethod #​8803 [@​radarhere]
• Support reading grayscale JPEG2000 images with 4 channels #​8786 [@​radarhere]
• Allow encoderconfig and encoderinfo to be set for appended TIFF images #​8780 [@​radarhere]
• Call startswith/endswith once with a tuple, and range without start=0 #​8799 [@​hugovk]
• Corrected exif_transpose error when XMP is tuple #​8792 [@​radarhere]
• Fixed loading GD images #​8793 [@​radarhere]
• Image.core.outline will no longer raise an AttributeError #​8794 [@​radarhere]
• Removed ImageTk._show #​8782 [@​radarhere]
• _seek_check already raises an EOFError #​8773 [@​radarhere]
• Only set mode when necessary in FtexImagePlugin #​8767 [@​radarhere]
• Build PyPy3.11 wheel for macOS 10.15 x86_64 #​8789 [@​hugovk]
• Replace slice and comparison with startswith/endswith #​8761 [@​hugovk]
• Use member names to initialize PyTypeObjects #​8741 [@​radarhere]
• Pass CFLAGS to build_simple directly #​8738 [@​radarhere]
• Only crop GIF frames when saving with disposal method 2 if transparency is present #​8748 [@​radarhere]
• Update pythoncapi_compat.h to fix building with PyPy3.11 #​8757 [@​mgorny]
• Rewrite the install_name of the ZLIB-NG library on macOS #​8673 [@​freakboy3742]
• Remove debug Image._wedge #​8755 [@​hugovk]
• Remove unused bdf_slant and bdf_spacing variables #​8753 [@​hugovk]
• Use boolean format argument for irreversible #​8739 [@​radarhere]
• Simplify Python code by receiving tuple from C #​8740 [@​radarhere]
• Use member names to initialize modules #​8734 [@​radarhere]
• Simplify Python code by passing tuples to C #​8733 [@​radarhere]
• Removed redundant argument parsing #​8732 [@​radarhere]
• Added "justify" align for multiline text #​8721 [@​radarhere]
• Seek relative to current position #​8709 [@​radarhere]
• Only use outside border of stroke in text() #​8701 [@​radarhere]
• Support saving PNG cICP chunk #​8704 [@​radarhere]
• Use Py_RETURN_NONE macro when possible #​8717 [@​radarhere]
• Added ImageFile close() #​8702 [@​radarhere]
• Use arm64 Linux runners for wheels #​8698 [@​radarhere]
• Test Windows amd64 wheels with NumPy #​8696 [@​radarhere]
• Added logging to TiffImagePlugin fixIFD() #​8568 [@​radarhere]
• Removed miniconda CPPFLAGS #​8695 [@​radarhere]
• Improved comment #​8694 [@​radarhere]
• Only F mode starts with F #​8684 [@​radarhere]
• Allow saving multiple frames as BigTIFF #​8663 [@​radarhere]
• Simplified converting to char * #​8662 [@​radarhere]
• Use namedtuple _replace #​8652 [@​radarhere]
• Updated TIFF decode error message string #​8660 [@​HarmvandenBrand]
• Added compile-time mozjpeg feature flag #​8645 [@​radarhere]
• Improved Docker coverage reporting #​8664 [@​radarhere]
• Removed giflib as webp dependency #​8661 [@​radarhere]
• Corrected installing ImageMagick on cifuzz #​8658 [@​radarhere]

v11.1.0

Compare Source

See GitHub Releases:

• https://github.com/python-pillow/Pillow/releases

---

Configuration

📅 Schedule: Branch creation - "before 10am on monday" in timezone Europe/Berlin, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[claude]

Pull Request Review: Pillow 11.0.0 → 11.3.0

Summary

This is an automated dependency update from Renovate that upgrades Pillow from version 11.0.0 to 11.3.0. The change is minimal (1 line in setup.py) and represents a minor version bump within the same major version.

---

✅ Code Quality & Best Practices

APPROVED - The change follows best practices:

• Clean, minimal diff (single line change)
• Version pinning is maintained in setup.py for reproducible builds
• Consistent with the project's dependency management approach

Note: The project has two dependency files with different philosophies:

• setup.py: Uses exact version pinning (Pillow==11.3.0) ✅ Good for reproducibility
• requirements.txt: Uses minimum versions (Pillow>=10.0.0) ✅ Good for flexibility

Recommendation: This dual approach is acceptable, but consider documenting which file is the source of truth. Based on the CLAUDE.md, it appears setup.py is the primary dependency specification.

---

🐛 Potential Bugs or Issues

NO ISSUES DETECTED - However, important observations:

1. Deprecations in Pillow 11.3.0 (per release notes):

   • fromarray() mode argument is deprecated
   • Saving I mode images as PNG is deprecated

   Action needed: Verify the codebase doesn't use these deprecated features.

2. Usage in codebase: Pillow is imported in:

   • docscan/pdf_utils.py:6 - from PIL import Image
   • docscan/invoice_detector.py:9 - from PIL import Image

   These are core modules for PDF processing, so thorough testing is recommended.

---

⚡ Performance Considerations

POSITIVE IMPACT - Pillow 11.3.0 includes several performance improvements:

1. I;16L TIFF support - Better handling of 16-bit images
2. Memory mapping improvements - Optimized TIFF and McIdas image loading
3. Drawing optimizations - Improved polygon line drawing and I;16 horizontal lines
4. iOS support - Though not applicable to this Apple Silicon-focused project

For this invoice processing system that converts PDFs to images at 150 DPI, the improvements should have neutral to slightly positive impact.

---

🔒 Security Concerns

CRITICAL FINDING - Pillow 11.3.0 includes important security fixes:

1. Buffer overflow fix (#9041):

   • "Fix buffer overflow when saving compressed DDS images"
   • Severity: This is a memory safety issue
   • Impact: Low for this project (doesn't appear to use DDS format)

2. Better error handling:

   • Improved IPTC TIFF tag handling with incorrect types
   • Better XMP data handling from UNDEFINED TIFF tags
   • FileNotFoundError for empty paths

3. Type safety improvements:

   • PEP 489 multi-phase initialization
   • Better error handling in C code

Recommendation: ✅ This upgrade should be merged - it includes important security and stability fixes.

---

🧪 Test Coverage

ACTION REQUIRED - Testing recommendations:

1. Existing tests should pass: The project has comprehensive test coverage including:

   • tests/test_pdf_utils.py - Tests PDF to image conversion
   • tests/test_invoice_detector.py - Tests VLM-based invoice analysis

2. Suggested testing:

   # Run the full test suite
   make test
   
   # Test invoice detection specifically
   pytest tests/test_pdf_utils.py tests/test_invoice_detector.py -v
   
   # Integration test with real PDF
   docscan sample_invoice.pdf --dry-run

3. Manual verification:

   • Test PDF to image conversion (150 DPI)
   • Verify PIL Image objects are created correctly
   • Check invoice processing end-to-end

---

📋 Additional Observations

1. requirements.txt inconsistency:

   • requirements.txt specifies Pillow>=10.0.0
   • setup.py now specifies Pillow==11.3.0
   • This is fine (setup.py is more restrictive), but Renovate only updated setup.py

2. Changelog highlights worth noting:

   • AVIF support improvements (reduced wheel size)
   • Python 3.14 support (future-proofing)
   • Better multiline text handling
   • Improved GIF, JPEG, TIFF, PNG handling

3. Breaking changes: None that affect typical PIL Image usage

---

🎯 Final Recommendation

✅ APPROVE AND MERGE

Reasoning:

1. Security fixes (buffer overflow)
2. No breaking changes for this codebase's usage patterns
3. Performance and stability improvements
4. Maintains semantic versioning (minor bump)
5. Well-tested upstream release (11.3.0 was released with extensive test coverage)

Pre-merge checklist:

• CI tests pass
• Manual test of invoice PDF processing
• Verify no deprecation warnings in test output

Post-merge actions:

• Consider updating requirements.txt to Pillow>=11.3.0 for consistency (optional)
• Monitor for any image processing issues in production use

---

Review conducted using repository conventions from CLAUDE.md
Pillow release notes: https://pillow.readthedocs.io/en/stable/releasenotes/11.3.0.html

[claude]

Pull Request Review: Pillow 11.0.0 → 11.3.0

Summary

This Renovate bot PR updates Pillow from 11.0.0 to 11.3.0 in setup.py. This is a minor version update that includes bug fixes, performance improvements, and new features.

---

✅ Code Quality & Best Practices

Positive:

• Single-purpose change: only updates Pillow version
• Follows semantic versioning (minor version bump)
• Clean, minimal diff with no extraneous changes

Concern:

• Version mismatch across files: The project has inconsistent Pillow version constraints across different files:

  • setup.py: Pinned to ==11.3.0 (after this PR)
  • requirements.txt: Uses minimum version >=10.0.0

  This inconsistency could cause confusion. Consider:

  1. Recommended: Update requirements.txt to >=11.3.0 to ensure the minimum version includes all security fixes
  2. Alternative: Document why setup.py uses pinned versions while requirements.txt uses minimum versions

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🐛 Potential Bugs & Issues

No Breaking Changes Detected:

• Pillow 11.0.0 → 11.3.0 is backward compatible
• The project uses basic PIL functionality (Image.open(), working with PIL Image objects)
• No deprecated features from this update affect the codebase

Usage Analysis:
The project uses Pillow in:

• docscan/pdf_utils.py:6 - Basic image handling from PyMuPDF conversion
• Tests for PDF processing

All usage is standard and should work without modification.

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🔒 Security Considerations

Security Fixes Included:
Pillow 11.3.0 includes important security improvements:

1. Buffer overflow fix (#9041) - Fixed buffer overflow when saving compressed DDS images
2. File validation improvements (#9048) - Better handling of empty file paths (FileNotFoundError)
3. Multiple image format security improvements - Better validation for XPM, PCX, QOI, TIFF, and other formats

Recommendation: ✅ Approve and merge - This update addresses security vulnerabilities and should be applied.

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⚡ Performance Considerations

Performance Improvements:

• iOS support added (#9030) - Though not relevant for this Apple Silicon project
• Memory mapping improvements for certain image formats
• Better C error handling (#9021) - Should improve performance slightly
• PEP 489 multi-phase initialization (#8983) - Better module loading

Impact: Neutral to positive - No performance regressions expected, potential minor improvements.

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🧪 Test Coverage

Testing Recommendation:
Before merging, ensure:

1. ✅ All existing tests pass (especially tests/test_pdf_utils.py and tests/test_invoice_detector.py)
2. ✅ CI/CD pipeline succeeds
3. ✅ Manual verification: Test PDF to image conversion with a sample invoice

Suggested test command:

source venv/bin/activate
pytest tests/test_pdf_utils.py -v
pytest tests/test_invoice_detector.py -v

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📋 Action Items

Before merging:

• Verify all CI checks pass
• Consider updating requirements.txt to Pillow>=11.3.0 for consistency
• Run full test suite to ensure compatibility

After merging:

• Monitor for any unexpected behavior with PDF processing
• Consider documenting the version pinning strategy in CLAUDE.md

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🎯 Final Recommendation

✅ APPROVE with minor suggestion

This is a safe and recommended update that:

• Fixes security vulnerabilities (buffer overflow, file validation)
• Improves stability and performance
• Maintains backward compatibility
• Requires no code changes

Merge confidence: High - This is a well-tested Pillow release with no breaking changes for your use case.

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Review completed following CLAUDE.md guidelines and project conventions.