Protect PDF with Password & Encryption
Add industry-standard encryption to lock sensitive documents from unauthorized reading or editing.
or drop PDF files here
Files are processed locally on your device and never uploaded to any server.
How It Works
01
Upload PDF
Choose the file you want to secure.
02
Set Password
Type a strong access password.
03
Download Encrypted PDF
Save your protected document.
Key Advantages of Protect PDF
Zero Cloud Upload
Documents are processed strictly on your device without transmitting data.
Unlimited Page Count
Convert massive documents without running into arbitrary cloud quotas.
High-Fidelity Output
Preserves fonts, vector geometry, and structural document layout.
100% Free Forever
No credit card, no sign-ups, and zero watermarks.
Helpful Guides & Tutorials
Frequently Asked Questions
Never. Encryption occurs strictly in your browser. Your password and document are never transmitted anywhere.