In my very old post, I have introduced a software which can unlock the encrypted pdf files (Click to have a view). Since so many days went by, some of you started to asked if there is any alternatives. Fine, there is one I can find for you. Appnimi PDF is a freeware which can make you unlock your encrypted pdf files.
Official site: http://www.appnimi.com/softwares/1-password-tools/1-pdf-unlocker
Features of Appnimi PDF Unlocker
- It is free
- Easy to use
- Support Windows 98, ME, NT, 2000, XP, 2003, Vista and Win 7 Systems
- Recovers user password required to open the file
- Brute-Force alogorithm are used to unlock the file
- Dictionary Attack using a word list can be used to unlock the file.
- The exe in the installation directory is portable
- With an elegant GUI the user can set the parameters easily before starting the recovery process
- Extract the files
- Unlocks any password protected PDF. Following permission are allowed on the unprotected pdf produced by PDF Unlocker.
- Fill In
- Modify Annotations
- Modify Contents
- Screen Readers
- The tool is completely portable as it is an exe.