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With all possible steganographic and watermarking options this looks ... I don't know ... eye-poppingly dumb?

• gpvos 2y ago
  Whatever method they choose, you can just diff a couple of PDFs to figure out what they did, and then write some code to detect and revert or mask that.
  • xandrius 2y ago
    Steganography vs adding metadata in the PDF are two absolutely different approaches
    • gpvos 2y ago
      Steganography would be trickier, but not impossible.
• deleted 2y ago
  [deleted]
• red_admiral 2y ago
  I'm sure they use other watermarking techniques as well.