Add password protection and AES-256 encryption to secure your PDF documents
Drag & drop files here
or click to browse from your computer
Your PDF will be secured with military-grade AES-256 encryption, the same standard used by banks and government agencies. Only users with the correct password can open the document.
Password Protection
Prevent unauthorized access
Permission Control
Control printing, copying, editing
AES-256 Encryption
Military-grade security
Batch Protection
Protect multiple files at once
Use at least 12 characters for strong security
Mix uppercase, lowercase, numbers, and symbols
Avoid common words or personal information
Store passwords securely (use a password manager)
Important
If you forget the password, there is NO way to recover the PDF. Make sure to store your password in a safe place!
Password Protect PDF encrypts a document so strangers cannot open it without the key. Use it before emailing ID scans, contracts, or payroll files. Choose a strong unique password and share it through a different channel than the file itself.
Encryption runs for your file in-session. We do not keep a copy of your password or document.
Modern PDF password protection suitable for everyday confidential sharing.
Yes—use Unlock PDF with the same password when you need an open copy.
Fast Processing
Convert files in seconds
Private processing
Runs in your browser when possible—files stay on your device
High Quality
Maintains original quality
No daily task wall
No signup required · no watermark on downloads