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Add an AES-256 password to a PDF, or remove a known password, entirely in your browser. Files never leave your device.
Upload Files
Add PDFs to password-protect
Encrypts with AES-256 entirely in your browser — the file and password never leave your device. Keep the password safe; it cannot be recovered.
Lock sensitive financial, legal, or medical records with industry-standard AES-256 bit encryption, or unlock password-protected documents you already own for clean sharing.
How to Use
Upload confidential documents to lock with a password, or decrypt an existing file you own.
Sensitive Financial Records
Select Lock with AES-256 or Unlock existing file
Configure industry-standard AES-256 encryption compatible with Adobe Acrobat and mobile readers.
Save your password-protected PDF securely with zero server transmission or password logging.
Setting a password encrypts the document's binary stream using industry-standard AES-256 cipher. Anyone attempting to open the PDF in Adobe Acrobat, Apple Preview, or a web browser will be prompted for the password.
Enter the current authorized password once to unlock the file, and export a clean, unencrypted copy. You can then open and share the document without typing the password every time.
No. Because AES-256 is cryptographically secure and processing happens locally with no backdoors or recovery keys stored, make sure to record your password in a secure password manager.
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