Password Protect PDF
Add password protection to your PDF files. Set a password that must be entered to open the document. 100% client-side -- your password and files never leave your browser.
Drop a PDF file here or click to upload
PDF files only
How to Password Protect a PDF
- Upload a PDF file using the drop zone or file picker.
- Enter and confirm your desired password.
- Click Protect and download the password-protected PDF.
Features
- Set user password for opening PDF
- Password strength indicator
- Uses jsPDF encryption for protection
- All pages preserved in the protected PDF
- 100% client-side processing -- files never leave your device
- No sign-up, no file size limits, completely free
Note: This tool applies client-side PDF encryption using jsPDF. For enterprise-grade encryption, consider server-side tools or dedicated PDF security software.
Some links on this page are affiliate links. If you click and make a purchase, we may earn a commission at no extra cost to you.
Recommended Products
AdAffiliate Disclosure: As an Amazon Associate, ToolBird earns from qualifying purchases. Links above are affiliate links — if you buy through them, we may earn a small commission at no extra cost to you.
Disclaimer: This tool is provided as-is for informational and educational purposes only.