These often require commercial software and what's known as a “dictionary” attack.
However, removing the “user” password is much more difficult. While this doesn't spell great news if you've been thinking your password protection is secure, it is handy if you made a mistake.įree password remover tools can remove the owner password to allow editing or printing. This used to be more of an issue, but these days you can use a PDF password unlocker to remove security from the PDF. You quickly realize that you forgot the PDF password and don't have a backup anywhere. It's all too common to create a password-protected PDF, only to come back to it later and be hit with an error when trying to open it. 10 How to Remove an unknown PDF Password with a PDF Password Remover.9 How to Remove a known PDF Password with Adobe Acrobat DC Pro.
