fix(read): enhance file validation with comprehensive magic byte chec… #9810
+146
−0
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Fixes #9512
What does this PR do?
Improve validation against file signatures from Wikipedia's file signature reference to be more robust:
Add comprehensive test coverage for invalid GIF and PDF files to ensure the robust validation catches misnamed/corrupted files across all formats.
How did you verify your code works?
Screen.Recording.2026-01-21.at.15.05.03.mov