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Misleading PDF: visual content differs from extracted text

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Misleading PDF: visual content differs from extracted text

#1

Post by fourgreen » Sun, Nov 23, 2025, 5:06 AM UTC

Misleading PDF: visual content differs from extracted text
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Re: Misleading PDF: visual content differs from extracted text

#2

Post by fourgreen » Sun, Nov 23, 2025, 5:06 AM UTC

By crafting custom fonts where glyphs are swapped, a PDF can display different content then it logically contains.

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