Secure PDF Unlocker - Version 4.0 Need a solution like Secure PDF Unlocker to unlock secured PDF files ? Then easily rely on PCVARE Secure PDF Unlocker software to unlock secured PDF files in easy approach. Secure PDF Unlocker is a ideal utility to unlock secured PDF in easy steps. With Secure PDF Unlocker program, one can unlock secured PDF within 2 seconds. Secure PDF Unlocker program support to unlock secured PDF files of Acrobat version up to 9, even with 128-bit or 256-bit encryption. Try the best Secure PDF Unlocker program, to unlock pdf security, unlock pdf restrictions, unlock secured pdf files instantly. Secure PDF Unlocker program do not require any versions of Adobe Acrobat reader to be installed. Users can run the Secure PDF Unlocker software on any version of Windows 98/ME/2000/2003/XP/Vista/7.