I receive some documents as protected PDFs. I got tired of inputting the password every time I viewed them with okular so I decided to batch unprotect all the ones I have. This is on a computer which only I use.
I tried the recommended pdftk command:
pdftk protected.pdf input_pw secret output plain.pdf
but it kept telling me OWNER PASSWORD REQUIRED. Eventually I decided it was pdftk's fault, not mine, so I switched to qpdf, using the command:
qpdf --password=secret --decrypt protected.pdf plain.pdf
and that worked.
A web search showed various complaints about this. I haven't investigated when or why the problem occurs.
I tried the recommended pdftk command:
pdftk protected.pdf input_pw secret output plain.pdf
but it kept telling me OWNER PASSWORD REQUIRED. Eventually I decided it was pdftk's fault, not mine, so I switched to qpdf, using the command:
qpdf --password=secret --decrypt protected.pdf plain.pdf
and that worked.
A web search showed various complaints about this. I haven't investigated when or why the problem occurs.
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