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Protect PDF
Add password protection to PDF
Add password protection to PDF. Work directly in your browser and keep a copy of the original for comparison.
1
Upload a PDF file.
2
Enter a password.
3
Apply protection.
4
Download the protected PDF.
About Protect PDF
Add password protection to PDF. Work directly in your browser and keep a copy of the original for comparison.
How to use Protect PDF
- Upload a PDF file.
- Enter a password.
- Apply protection.
- Download the protected PDF.
Frequently Asked Questions
Is this tool free?
Yes. All PDF AI tools are currently free, with no account required.
How large can my upload be?
Upload up to 200 MB per task and up to 10 files for tools that support multiple files.
How are files handled?
Files are processed on the server. Successful jobs are scheduled for automatic cleanup after 10 minutes.