Pdf Encryption software locks batch pdf files with password protection. Pdf encrypt tool is Windows based desktop application provides option to lock pdf with open password and owner password security. Encrypting pdf with password ensures users that no unauthorized users can access, copy, print and pirate your confidential documents. Pdf encryption software supports RC4 40 bit/128 bit and AES 128 bit/256 bit encryption level security. Pdf protection software can be used to disable pdf printing, to block pdf editing, to deny pdf copying, to disallow page extraction, signing, form filling and commenting etc. Pdf user password is one which is required to open and view pdf document content while owner or master password is one which is used to lock pdf with permissions restrictions for edit, print & copy. Free trial version shows watermark on pages, while registered version works without any limitation. Features: (1) Program supports latest RC4 and AES encryption level protection. (2) Program is compatible with all latest Windows OS. (3) Try before buy version is available for evaluation purpose. (4) Lock pdf with open password & owner password. (5) Inbuilt user help manual is available with program.