Coolmuster PDF Locker - Password Protect PDF to Keep Your Data Safe
If you want to protect your PDF files by setting a User Password (or Open Password) or an owner password, Coolmuster PDF Locker is a good choice. With its help, you can also set permissions for your PDF document, allowing content copying, modifying, annotation adding, document printing (high or low resolution), content copying for accessibility, form filling, and document assembly.
Below are the main features of Coolmuster PDF Locker:
Set User Password (Open Password) to prevent PDF from unauthorized access/opening.
Encrypt PDF with Owner Password to protect PDF from unauthorized reuse or modification.
3 encryption levels for your sensitive data: 40 bit RC4, 128 bit RC4, and 128 bit AES.
Take full control over printing, copying, editing, and more permissions for your PDF content.
Standalone and easy to use for users of all skill levels with a user-friendly interface.
System Requirements
Operating System: Windows 11, Windows 10, Windows 8, Windows 7
Minimum Hardware Requirements: >750MHz Intel or AMD CPU processor, 512MB or above of RAM, 1GB above free space
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