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[liberationtech] Removing watermarks from pdfs (pdfparanoia)

Bryan Bishop kanzure at
Tue Feb 5 12:20:22 PST 2013

How about removing those pesky watermarks from pdfs? Sometimes they
completely obfuscate the contents of a paper we're trying to read, or
sometimes they have more sinister purposes.

Working proof of concept:

Discussion history:

People who could theoretically benefit from this:"Redistribution+subject+to+SEG+license+or+copyright"<>"Redistribution+subject+to+AIP"<>""<>"Downloaded+*+*+2001..2013+to+*"<*+*+2001..2013+to+*%22>

To get source code:

git clone git://

To install:

sudo pip install pdfparanoia


sudo easy_install pdfparanoia

Right now there's IEEE and AIP support. I need more samples to work with.

- Bryan
1 512 203 0507
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