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🔒 Protect a PDF

Add an opening password and limit printing or copying.

🔒 100% local & private. Your files are never uploaded — everything runs in your browser on your device. Turn off your Wi-Fi: it still works.

Secure a PDF with an opening password and usage restrictions (printing, copying, modifying). Ideal for a confidential document, a quote or a certificate.

The tool lets you set permissions in one click, then export a protected document without a watermark.

Handling is 100% local: the files stay in your browser.

How to protect a pdf

  1. Add a PDF. Drop the file.
  2. Set the password. Type the opening password.
  3. Choose the restrictions. Allow or block printing and copying.
  4. Protect and download. Get your protected PDF.

Frequently asked questions

Are my files safe?

Yes: they never leave your device.

Can I later remove the password?

Yes, with the Unlock PDF tool.

Is it really private?

Yes, the processing is local.

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Try Bang PDF for free - no account, no watermark, no upload.

Merge your PDFs now