What type of Encryption?

Nov 9, 2012 at 4:37 AM
Edited Nov 9, 2012 at 4:41 AM



  Can someone please tell me what type of encryption is used for this software?  i.e. DES?  If so, how many bits?   Basically what I'm looking for is good PDF encryption software.  This software seems very straightforward but I am concerned as to how secure it is.  Thank you to all that respond!


I'm referring to ISAFE PDF just so you all know what I'm talking about.