New PDF Unlocker - Is it good tool to unlock pdf file restrictions?

The need is to call a PDF unlocker application. My pdf file is restricted to print, edit & copy options. While I searched to unlock pdf file restrictions, various experts suggested to deploy a latest pdf unlocker application. I have decided to deploy pdf restriction remover product that is located here:

http://www.pcvita.com/pdf-restriction-remover.html

Kindly ensure me that is it good to unlock pdf file or any other methods are available to remove limitation of pdf file? Looking for you all responses.

Thanks