Add password protection to your PDF files with user and owner passwords using AES-128/256 encryption. All processing happens locally in your browser.
Click to select PDF or drag & drop here
Max 50MB
1. Upload PDF: Click the upload area or drag and drop your PDF file.
2. Set Passwords: Enter a user password (required to open) and owner password (optional, controls permissions).
3. Choose Encryption: Select AES-128 or AES-256 encryption level, then click Encrypt PDF.
4. Download: The encrypted PDF downloads automatically when ready.
Upload your PDF, set a user password (required to open) and optionally an owner password (for permissions), choose encryption level (128-bit or 256-bit AES), then click Encrypt PDF. All processing is done locally in your browser.
User password is required to open/view the PDF. Owner password controls editing, printing, and copying permissions. You can set one or both.
We use AES-128 or AES-256 encryption, the same standards used by Adobe Acrobat. 256-bit AES is among the most secure PDF encryption methods. Use strong passwords (8+ characters with mixed types).