Drop your PDF here
or click the button to choose a file
🔒 Your file never leaves your device — 100% private
document.pdf
Set Password
Password must be at least 4 characters
Passwords do not match
⚠️ Important: Remember your password — there is no way to recover it if lost. Store it somewhere safe.
Encrypting PDF...
0%
Applying 128-bit AES encryption in your browser
Enter a password to protect your PDF
🔒 PDF protected successfully!
📄 File
document_protected.html
🔐 Encryption
AES-256-GCM (Web Crypto)
📁 Output format
.html viewer file
💡 How to open
Open the .html file in any browser → enter password
🚫 Restrictions
None
How to protect a PDF
1
Upload your PDF
Drop your PDF or click to select it. File never leaves your browser.
2
Set a password
Enter a strong password and optionally restrict printing, copying or editing.
3
Download protected PDF
Your password-protected PDF downloads instantly with 128-bit AES encryption.