Manage · on device

Password-protect PDF

Encrypt a document so only you can open it.

Some documents should only open for the right person. rawPDF lets you lock a PDF with a password, encrypting it so it can't be read without the passphrase you set - ideal before you email a contract, share an ID or store something sensitive.

  • Encrypt any PDF with a passphrase
  • Lock documents before sharing them
  • Encryption performed entirely on device
  • No account and no upload involved
Why on-device matters

Setting a password only protects you if the process itself is private. rawPDF encrypts your PDF on device, which means the unprotected file is never uploaded first. You set the passphrase, the encryption happens locally, and only people you give the password to can open the result.

How to password-protect pdf with rawPDF

  1. 1

    Open the PDF and choose Password.

  2. 2

    Set a strong passphrase you'll remember.

  3. 3

    rawPDF encrypts the document on your device.

  4. 4

    Share the locked PDF and the password separately.

Password-protect PDF - questions

Is the file uploaded before it's encrypted?

No. Encryption happens on your device, so the unprotected version is never sent anywhere.

What happens if I forget the password?

For your security the document can't be opened without it, so store the passphrase somewhere safe.

Can the recipient open it on any device?

Yes. A password-protected PDF opens in standard PDF readers once the correct passphrase is entered.

Everything on device. Nothing in the cloud.

Download rawPDF