iStonsoft ePub to PDF Converter
Apply User Password as Well as Owner Password to PDF Document In some circumstance, we are not willing to declare the PDF document publicly. Instead, we would specific person to read the file. Thus, it is needed to set User Password to the document. When a PDF has been set User Password, no one can open it without correct password. This software does this job for you effortlessly.
Maybe you just want to make your PDF document revealed to anyone who has interests in it but reusing the contents of the PDF is forbidden. Readers are able to read your document only and not able to copy, print or edit. If so, Owner Password is suitable for you. PDF Encryption software allows you to set Owner Password quickly and directly.
Three Levels of Encryption System This software contains three levels of encryption system - 40 bit RC4, 128 bit RC4 and 128 bit AES. These security levels adopt different encryption algorithms which protect the privacy of your PDF document hierarchically. You may choose proper encryption level according to your need.
Release Individual or Multiple Privacies Freely It enables you to protect PDF from being printed, copied, modified or annotation added selectively and individually when in common 40 bit RC4 mode.
In 128 bit RC4 and 128 bit AES modes, you are allowed to release more privacies for your document including permitting content copying / content copying accessibility, content printing, form filling, content modifying, annotation adding or assemble documents optionally.
Last Updated: Jun 06, 2013
Supported OS: Windows 7/XP/Vista