PDF Lock and Unlock is the best utility for locking and unlocking your PDF files. You can lock any PDF files by applying user password and owner password on it. Has option to set any restrictions like document print, copy, edit, modify, form fill, comments, annotations, accessibility, etc on PDF documents. With this program, you can enable or disable any kind of security settings of PDF. It supports PDF files of standard 40 bits, 128 bits, AES-128 bit encryption.

If you are unable to print bulk PDF files, unable to modify PDF data, unable to copy text content of PDF, etc. Donít worry because you have this software to do these tasks by enabling all this restrictions. This tool can work as Unlock PDF Files, Unlock PDF Protection, Unlock PDF Printing, Unlock PDF Password, Unlock PDF Permissions, Unlock PDF Security, Unlock PDF Copy Paste, Unlock PDF Commenting, etc.

Features of PDF Lock and Unlock

  • Add and remove user or owner password on PDF.
  • Enable or disable PDF document permissions like printing, copying, modifying, form filling, annotations, commenting, signing, editing, accessibility, etc.
  • Supports 40 bits, 128 bits, AES-128 bit encryption standards.
  • Support password protected PDF documents either locked with user password or owner password.
  • Lock as well as unlock PDF files.
  • Adobe Acrobat is not required.
  • Successfully works with all popular Windows version like 98, 2000, NT, ME, 2003, XP, Vista, 7.
  • Support both 32 bit and 64 bit OS.