AI Document Platform
Add password protection to any PDF instantly.
Encrypt your PDF with a password. All processing happens locally — your file never leaves your device.
- Price
- Free
- Input
- PDF file
- Output
- Encrypted PDF
PDF
Upload a PDF to protect
Drag and drop a PDF here.
PDF only. Set a password and download your encrypted PDF.
or upload from
Waiting for upload
Drop files here or click upload.
- Accepted files: PDF
- Files: 1
- Per-file limit: 50.0 MB
FAQ
PDF password protection questions
How do I password protect a PDF?+
Upload a PDF, enter a password, and download the encrypted result.
Is my PDF sent to a server?+
No. All encryption happens in your browser.
Protect PDF
Add password protection to your PDF.
Encrypt PDFs with a password entirely in your browser.