Cathryn Lee
Coolmuster PDF Locker is a desktop tool built to secure PDF documents with passwords and permission controls. The software sets user passwords to block file opening and applies owner passwords to restrict copying, printing, and text editing. It encrypts files using three standard levels: 40-bit RC4, 128-bit RC4, and 128-bit AES.
- Product name: Coolmuster PDF Locker
- Publisher: Coolmuster
- Homepage: https://www.coolmuster.com/pdf-locker.html
- License type: 1-year license
- Price:
$15.95$0.0 - Platform: Windows 11/10/8/7
- License code & download – last updated: May 02, 2026
Click here...
Unlocking content...
📝 Note: Please follow the Activation Guide to successfully claim your license.
Coolmuster PDF Locker Coupon Codes (100% Working)
Coolmuster PDF Locker - 1 Month (1 PC)
50% discount coupon code: regular price $9.95, discounted price $4.96
Coolmuster PDF Locker - 1 Year (1 PC)
50% discount coupon code: regular price $15.95, discounted price $7.97
Coolmuster PDF Locker - Lifetime (1 PC)
50% discount code: regular price $25.95, discounted price $12.97
Activation Guide: How to Get Coolmuster PDF Locker Key Free
On the Coolmuster PDF Locker giveaway page, please enter your name and your email address to get your free license code.
Download and install the software by clicking on the above download link. To use the software for 1-year free, please insert your email address and license code on the available form.
Now you can enjoy it for 1-year free with full functions!
Coolmuster PDF Locker Screenshot!
Main Features
- Coolmuster PDF Locker allows you to protect PDF files by setting a password to prevent unauthorized access to the PDF document, whether it’s business-related or personal.
- It provides two ways to set the PDF password: User Password and Owner Password to add a password to protect your own PDF files.
- This tool also supports 3 different security levels for different situations in daily life and work: 40-bit RC4, 128-bit RC4, and 128-bit AES.
- Along with the password and encryption level, Coolmuster PDF Locker also gives a lot of other options for your reference, such as resolution settings, document printing, copying, etc.
Why Choose WinningPC
- Why Trust? We are committed to providing 100% valid and verified coupon codes, so you can always shop with confidence.
- Found an Invalid Coupon or a Better Deal? If you encounter an invalid code or a better offer, please let us know. Our team updates all discount information regularly to ensure accuracy.
- Official Authorization: We only share authentic discounts from trusted software developers.
- No Fake Discounts: Unlike some sites, we never use misleading deals. The final price you see is the true discounted price.
- Secure Purchases: All transactions are processed on the official vendor’s website, ensuring authenticity and data protection.
- Extra Support: If you face order or vendor issues, contact us. We’ll liaise with the vendor to help resolve your problem quickly.
Technical Details
| Language Support | English, Français, Italian, Spanish, Swedish, and more… |
| Money Back Guarantee | 30-Day |
| Operating System | Windows 11/10/8/7 |
| Shipping | Register code will be sent to your email in minutes |
| Subscription | Lifetime |
| Support Services |
OWNER password restrictions can be removed without even knowing the password by many 3rd party utilities, heck coolmuster likely sell one themselves! PDF generation software *SHOULD* provide all the functions that this one trick pony does, check the properties of the virtual printer you use, it may be hidden in there!