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How to Password Protect a PDF

4 min read · Updated October 2026

Documents like salary slips, ID copies and contracts should not travel unprotected. A password stops casual access if the file is forwarded or the email goes to the wrong person.

Try it now: Protect PDF

Free, no sign up, and the file stays on your device.

Open Protect PDF

How to protect a PDF

  • Open Protect PDF and add your file.
  • Type a password and repeat it to avoid typing mistakes.
  • Download the protected copy.
  • Open it once to test the password.

Choosing a good password

  • Use at least 10 characters.
  • Mix words, numbers and symbols.
  • Do not use birthdays or phone numbers.
  • Do not reuse your email or bank password.

Sharing the password

Never send the password in the same email as the file. Share it by a call or in a different app. Keep it in a password manager, because if you lose it nobody can recover the file.

Frequently asked questions

Can the password be recovered?

No. If it is lost, the file cannot be opened. Keep an unprotected original in a safe place.

Is my file uploaded?

No. The work happens in your browser, so your file stays on your device.

Ready to start?

Open Protect PDF