Protect PDF
Encrypt your PDF with a password to keep sensitive data confidential.
Upload your file to begin
Processing happens directly in your browser using JavaScript. Your files are not sent to the server.
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How to use
Add password protection to a PDF before sharing.
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How to use
Add password protection to a PDF before sharing.
Steps
- Click “Select file” and choose your PDF (or image) from your device.
- If the tool shows extra options, configure them before running.
- Click “Run tool” and wait until processing finishes.
- Click “Download result” to save the output.
Tips
- If a file fails, try “Repair PDF” or “Unlock PDF” first (for damaged or password-protected PDFs).
- For best results, use modern Chrome/Edge and keep the tab open during processing.
- Store your password securely — without it the file can’t be opened.
For more advanced options and additional formats you can also use the original React app version.