Is it possible to execute QPDF through Python script <p>I'm working on a python script that processes PDF files, though some of them contain encryption that restricts usage to only printing, which I have to manually remove before I can process them.</p> <p>For that I have been manually using <a href="http://qpdf.sourceforge.net/" rel="nofollow noreferrer">QPDF</a> to remove these restrictions on individual PDF files before running the script (the commands for qpdf are pretty simple...inside the command prompt -> qpdf --decrypt input.pdf output.pdf)</p> <p>My question is - rather than doing this bit manually, is it possible to execute the QPDF executable file within my Python script and run the command? I haven't been able to find any python modules specifically to control QPDF so I am not holding much hope.</p>