4 ms·
I am not following your line of reasoning correctly. The watermarking is done using characters that look different from each other. Printing the book will not
by probably_wrong 6y ago
I am not following your line of reasoning correctly.
The watermarking is done using characters that look different from each other. Printing the book will not change those characters, and therefore it is still possible to extract the original information. Harder, but not impossible.
For this information to be lost, Evince would have to print the book in a crappy font that uses a single symbol for both. Which is possible, but I think it's not what you were going for.
- young_unixer 6y agoThe hash won't be the same, which is what matters the most. They won't have people manually reviewing the punctuation to catch infringement, and it's highly probable that Evince printing to PDF will mess the whole internal structure, so it's hard to automate it.
- Polylactic_acid 6y agoIf you just print it then that defeats the point. They don't care about individual copies, they want to find who is stripping DRM and posting books on torrent trackers.