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Is there a way to digitally markup a pdf so its not OCR-readable? (lemmy.world)

submitted 2 hours ago by [email protected] to c/[email protected]

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Want to ensure financial documents cant be parsed by automated systems

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[–] [email protected] 13 points 2 hours ago (1 children)

PDF scanning is done by both OCR and PDF analysis so no. If you, a human can read it, a bot can read it too.

Your best bet is the classic inserting BS in a 1-hex-off-white font

[–] [email protected] 5 points 1 hour ago

This is correct. There are also typefaces that are designed to be difficult for OCR eg https://www.librarystack.org/zxx/

These are, however, difficult for humans to read as well.