Paperplane · Local-first PDF workspace

Protect a PDF with a password

Encrypt a PDF with an open password using local qpdf processing.

Supported workflows process files on your device. Your original file remains unchanged.

Open Protect a PDF with a password

How it works

  1. 1.Choose the file for protect a pdf with a password
  2. 2.Review the local processing options
  3. 3.Download the result to your device

Private processing you can understand

Supported tools process files on your device. Tools that are still being tested are marked Coming soon.

Frequently asked questions

Are my files uploaded?

Supported Paperplane tools process files on your device. Tools that are not available yet are clearly marked Coming soon.

Does Paperplane change my original file?

No. Paperplane creates a new output and leaves the original file unchanged.