Protect PDF

Encrypt your PDF document with a strong password to prevent unauthorized access.

or drop files here

Protect PDF: High-Security Document Locking

Why Lock Your PDF?

Ensure that sensitive information—like bank statements, personal health records, or classified business contracts—can only be accessed by the specific people you authorize. Putting a password on your PDF prevents unauthorized snoopers from opening the file.

Advanced AES Encryption

We do not just put a visual lock on the file. We rewrite the data stream using advanced standard user-password encryption algorithms. Unless the viewer physically has the correct password, the document's content string remains encrypted and unreadable.

Privacy Guaranteed

We never save your files, and we absolutely never save your password. Since we do not record the password, please make sure you memorize it—as it cannot be recovered if lost.