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the_darkhorse13
06-29-2003, 09:08 AM
I'm in need of a program that password protects, or at least makes read-only, pdf files. I'm going to be using this for work, so the last thing I need is other people changing some of the things. I've managed to create the pdf files from OO, but I can't seem to figure out how to password protect them. I could only come across a couple of excrypters for linux on google, of which the download link doesnt work and the other is java souce files (???). Any suggestions would be great! Thanks
brockmasterflex
06-29-2003, 09:14 AM
could you just change the permissions on the file so others can't open it.
-bmf
mdwatts
06-29-2003, 09:14 AM
I only found
PGP encrypt it. Password protected PDF files are a joke. This is the
classic content protection issue (a la SDMI etc) which just isn't
possible.
in a quick G4L search for "password protect pdf".
Search for AES or Blowfish. They're both encryption/decryption methods that are perfectly secure for what you're trying to do. They're not PDF specific though, so if you're looking for something which automatically asks for a password when you open it in XPDF or Acrobat or whatever, then they aren't suitable.