pypdf 6.6.0

Version 6.6.0, 2026-01-09

on Python PyPI

What's new

Security (SEC)

• Improve handling of partially broken PDF files (#3594) by @stefan6419846

Deprecations (DEP)

• Block common page content modifications when assigned to reader (#3582) by @stefan6419846

New Features (ENH)

• Embellishments to generated text appearance streams (#3571) by @PJBrs

Bug Fixes (BUG)

• Do not consider multi-byte BOM-like sequences as BOMs (#3589) by @stefan6419846

Robustness (ROB)

• Avoid empty FlateDecode outputs without warning (#3579) by @stefan6419846

Documentation (DOC)

• Add outlines documentation and link it in User Guide (#3511) by @mainuddin-md

Developer Experience (DEV)

• Add PyPy 3.11 to test matrix and benchmarks (#3574) by @rassie

Maintenance (MAINT)

• Fix compatibility with Pillow >= 12.1.0 (#3590) by @stefan6419846

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