PDF Lock and Unlock has both options to add and remove PDF password & page restrictions. PDF unlock tool unrestrict all the applied restrictions of restricted PDF files. PDF unprotect utility can unlock PDF files, that are locked or protected for document printing, text copying, content editing, modifying, commenting, signing, form filling, annotations, etc. It supports PDF files of standard 40 bits, 128 bits, AES-128 bit encryption. PDF Unlocker application can unlock any non-password or password protected PDF files.

PDF Unlock Software is used for both locking and unlocking your PDF files. User can lock PDF files by applying User password and Owner password on PDF. You can also set all the PDF permissions like document print, edit, copy, modify, comments, annotations, form fill, accessibility, etc. With this program, you can enable or disable any security settings of PDF. If you are unable to print bulk PDF files, use this Unlock PDF Manager tool to print and modify your multiple PDF files on a single click.

Certain PDF files like bank statements, credit card bills, phone bills, etc are not only password protected but also locked to prevent any changes. You may have the password to open the PDF file but you cannot modify PDF or open it in an editor. If it is password protected, the program will ask you for the password to open the file. After entering the password, you just click 'Unlock PDF' button and the software will create an unlocked version (without security) of the same PDF file. 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.

Key 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.
• Provide PDF encryption and decryption in one tool.
• Support batch operation to save your time.
• Adobe Acrobat is not required.
• Add prefix or suffix with file names.
• Very easy to use with attractive user friendly GUI.
• Successfully works with all popular Windows version like XP, Vista, 7.
• Support both 32bit and 64bit OS.

System Specification

• .net framework 2.0 or more
• 10 MB free hard drive space
• 256 MB RAM
• Windows XP/Vista/7