Warn about duplicate Raqm text preprocessing - #9914
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August 28, 2026 02:38
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Fixes #9907.
Pillow uses libraqm to perform shaping and bidirectional text layout when it is available. This adds a note to the
ImageDrawdocumentation warning that pre-processing text witharabic_reshaperandpython-bidiin that case applies the same processing twice and can produce incorrect output.The note also points readers to
PIL.features.check("raqm")so applications can choose the appropriate behavior at runtime.Validation:
git diff --check.I used OpenAI Codex to assist with investigating and preparing this change, and reviewed the resulting documentation before submission.