Fairly new to using Acrobat and when I saw that I could protect documents I thought great! I can prevent copying, editing and printing with a password. I was concerned that there may be ways around the security and decided to test it out for myself. A simple internet search found [link removed by moderator] which stripped out all my security leaving the file accessible - I had expected to be able to find a way, but not this easily. Question is, is there a different way that I have not yet found to secure acrobat files?
There is a warning when you first set password security:
Sad but true.
Apparently certificate security is much better, but enormously hard work, because the person who wants to read the file has to send you their personal certificate, and you make them a personal file.
And there are DRM solutions, in the 5-6 figure price range.
DRM is indeed the only 'unbreakable' option for protecting a PDF file, though combinations of certifying signatures and encryption can be a lot more difficult to remove.
LiveCycle DRM as a standalone platform is only an option for enterprise class users as it involves a large investment in resources and money, but LC DRM has also been bolted onto the Adobe EchoSign process. It's not an exact replacement as you have to sign everything first, but an EchoSign subscription is a heck of a lot cheaper than a LiveCycle server license!