1. PDF Unlocker software allows users to remove restrictions from PDF documents. Unlock PDF for copy, print, edit, sign, comment, etc., On any Windows & Mac OS. Also, remove known user-level password & owner level password security from PDF files.

  2. APD

    Appnimi PDF Unlocker Appnimi PDF Unlocker is a utility which will help you recover passwords of pdf files using Dictionary and Brute Force methods.