Re: [DIYbio] Removing watermarks from pdfs (pdfparanoia)

> It's bloated and ugly, but it's only going to have the sort of watermark
> that you can see with your naked eye; very easy to see if something is
> slipping through your net!
Not exactly, take a look at steganography techniques like this one : https://en.wikipedia.org/wiki/Steganography#Digital