PDF (40 bits and 128 bits), set permissions, add user and owner password.For example you can encrypt a pdf without to allow to print it.

The button to print the file will be disabled in Acrobat Reader application.For example you can encrypt a pdf allowing the user to read it only if he know the correct passwordIt's simple to use it like a batch application to set permissions to every PDF in your archive.It's simple to use it like a pipe application.It's simple to use it inside your cgis.We distribute only executable versions (if you need ask us the original PERL code, we'll evaluate your request).