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

On Wed, Feb 6, 2013 at 8:29 AM, Bjonnh wrote:
> I think the best way to find which kind of watermark you have is to
> compare two files from two different providers if it's possible.

Everyone has been theorizing that there might be stenographic
watermarks, but so far I haven't found any evidence of a publisher
employing this level of sophistication in their pdf/http servers. I
have compared downloads from multiple sources through binary diffs and
checksums. So far I haven't seen any evidence of this. I would be very
interested in being notified in the event that anyone discovers a
stenographic watermark in any academic papers.

- Bryan
http://heybryan.org/
1 512 203 0507

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