Protect PDF
Secure your PDF with a password to prevent unauthorized access. Set both open and permission passwords.
Protect PDF
Add password protection to your PDF files.
Drop file here or click to upload
PDF files only · Max 100MB
How to Use Protect PDF
- 1Upload your PDF
- 2Set a password
- 3Click Protect
- 4Download protected PDF
Your Privacy is Protected
Protect PDF runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
No server uploadNo account required100% freeWorks on all devices
Frequently Asked Questions
Is the encryption secure?
We use 256-bit AES encryption for maximum security.
Why Use This Tool?
Files never leave your device
No upload to any server
Instant processing in browser
100% free, no account needed
Tags
pdfprotectpasswordsecurity