Need to unlock PDF to allow copying, printing, editing, modifying? Unlock PDF software can help! Unlock PDF is a superior program to unlock secured PDF settings of PDF files like: copy, print, edit, modify. With PDF Unlocker program users can unlock pdf security, unlock pdf restrictions, unlock secured pdf files or unlock pdf security settings at ease. The process to unlock pdf files is easier & simpler with Unrestrict PDF – an useful solution to unlock pdf security, unlock pdf protection, unlock pdf password, unlock secured pdf, unlock pdf owner password, unlock pdf restrictions. Unlock PDF successfully unlock secured PDF files of Acrobat version up to 9, even with 128-bit or 256-bit encryption. While unlocking PDF securities with Unlock PDF program, a machine do not require any versions of Adobe Acrobat reader to be installed. Users can run the Unlock PDF software on any version of Windows 98/ME/2000/2003/XP/Vista/7. Also you can try using Restrict PDF tool to protect pdf files against unauthorised use.