PyPDF 2 Decrypt Not Working

Question

Currently I am using the PyPDF 2 as a dependency.

I have encountered some encrypted files and handled them as you normally would (in the following code):

<         


        

Answer 1

This error may come about due to 128-bit AES encryption on the pdf, see Query - is there a way to bypass security restrictions on a pdf?

One workaround is to decrypt all isEncrypted pdfs with "qpdf"

qpdf --password='' --decrypt input.pdf output.pdf

Even if your PDF does not appear password protected, it may still be encrypted with no password. The above snippet assumes this is the case.