Password Protect PDF
Secure your PDF files with strong encryption. Restrict printing, copying, and editing. No installation, 100% free.
Drag & Drop PDF to Protect
or
Max 150MB • Processed locally for privacy
Why Choose Aservus Security?
Designed for maximum privacy and strong protection
Local Encryption
Encryption happens in your browser. Your files never leave your computer.
Strong Security
We use industry-standard 128-bit AES encryption algorithms.
Permissions Control
Decide if users can print, copy, or edit your document.
Instant Processing
No upload wait times. Files are secured instantly on your device.
Frequently Asked Questions
Is it safe?
Yes. Aservus uses client-side processing, meaning your file is encrypted right on your device. We never see your password or your file.
What if I forget my password?
Because we don't store your password or file, we cannot recover it for you. Please make sure to remember your password!
Can I prevent printing?
Yes. Simply uncheck the "Allow Printing" box in the settings before protecting your PDF.
Is this service free?
Yes, Aservus is 100% free to use for as many files as you need.
Does it work on mobile?
Yes, our tool works directly in the browser on iOS and Android devices without any app installation.
Secure Your Documents Today
Protect sensitive information with our free encryption tool
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