100% Browser-Based • No Upload • Free
Free PDF Protector Encrypt with Password
Add password protection to your PDF documents. Prevent unauthorized access with strong encryption — all processed in your browser.
No sign-up required to try
•
No files uploaded
•
Free forever
How It Works
1
Select or drop your file
2
Processed in your browser — nothing uploaded
3
Download the result — done!
Key Features
Why Use UniTrack PDF Protector
Secure sensitive documents with military-grade encryption — entirely on your device.
Strong Encryption
AES-256 encryption protects your PDF with industry-standard security used by banks and governments.
Custom Password
Set your own password. Recipients will need to enter it to open or print the document.
Client-Side Security
Encryption happens in your browser — your password and document are never sent to any server.
FAQ
Frequently Asked Questions
We use AES-256 encryption, the same standard used by financial institutions and government agencies. Without the password, the document cannot be opened.
Yes, if you know the password. Open the protected PDF with the password, then save it without protection using a PDF reader.
No. Your password is used only during encryption in your browser and is never transmitted or stored. Make sure to remember it — we cannot recover it for you.
Protect Your PDFs for Free
Add password encryption to your documents — no upload, no signup, no limits.
No sign-up required
100% browser-based
Free forever