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Comment by thangalin

https://www.argeliuslabs.com/deep-research-on-pdf-redaction-...

> Information Leaking from Redaction Marks: Even when content is properly removed, the redaction marks themselves can leak some information if not done carefully. For example, if you have a black box exactly covering a word, the length of that black box gives a clue to the word’s length (and potentially its identity).

Does X-ray employ glyph spacing attacks and try to exploit font metric leaks?

parent thangalin 10 months ago

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