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.
Need batch processing, OCR, or e-signatures?
- ✓ Edit & create PDFs
- ✓ OCR for scanned docs
- ✓ E-sign documents
- ✓ Batch processing
Professional PDF editor for Mac & iOS
- ✓ Fast PDF editing
- ✓ Annotation tools
- ✓ Form filling
- ✓ Merge & split
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Disclaimer:This tool is provided “as is” for informational and educational purposes only. Results may not be 100% accurate. ToolBird makes no warranties, express or implied, regarding the accuracy, reliability, or completeness of any output generated by this tool. This tool does not constitute professional, legal, financial, medical, or tax advice. Always consult a qualified professional for important decisions. By using this tool, you agree that ToolBird and its operators shall not be held liable for any damages, losses, or consequences arising from the use of this tool or reliance on its results. All processing occurs in your browser — we do not store, transmit, or access your data. Use at your own risk.