Add Pdf Security Password Lock Tool

Lock pdf files with open password as well as owner password. Open password known as user password which helps to restrict unauthorized users to open and view pdf. Pdf prompts to type open password. Owner password known as permission password which helps to disable pdf editing, block pdf printing, prevent form filling, disallow text & image copying on clipboard, signing & commenting with 128 bit AES, 40 bit RC4 strong protection.Download for Free.