So, how to decrypt a PDF file?
I already know the password, but I want to figure it out so that I can view them on mobile devices. The password only works if the file is located in the same folder as such PFX file. But in any operating system other than Windows, it's completely meaningless, and so I can't see the file even if I know the password. How do I decipher such a file?
Forgive me if this is the most ignorant question ever.
It is a form of digital rights (DRM) management. They clearly did to stop the shared files, and if someone could decrypt the file then the file could be shared. If you can not. DRM is (some googling will show) an EXTREMELY controversial thing.
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