Add password protection to your PDF documents to prevent unauthorized access.
Privacy-first
Files never leave your device
Lightning fast
Instant protection
Secure
Password protection
Choose a strong password with at least 4 characters
Note: Protection runs locally in your browser using AES-256. Keep this password safe—we can't recover it for you.
Owner password matches the user password for compatibility. Use the Unlock tool later to remove protection.
Drop your PDF here
or click to browse
PDF password protection is a standard security feature. However, no encryption is unbreakable. For highly sensitive documents, consider using additional encryption methods or secure document management systems.
Yes, you can use the PDF Unlock tool to remove password protection if you know the password. You'll need to provide the correct password to unlock and save an unprotected version.
User password is required to open and view the PDF. Owner password allows full access including editing, printing, and changing permissions. You can set both for maximum control.
Yes, password-protected PDFs follow the PDF standard and work with all major PDF viewers including Adobe Reader, Chrome, Firefox, Safari, and mobile apps.