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How to password-protect a PDF

A password asks for a code before the file opens.

Keep the password, and keep an unlocked original for yourself.

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About this tool

Password-protecting a PDF requires a code before the file opens. This security measure ensures that sensitive documents remain private. Using Nibras PDF tools, you can easily apply this protection to your digital documents. Once the password is set, the contents of the file are restricted only to those who know the correct code.

People frequently need this feature when sending financial statements, personal agreements, and confidential correspondence. Note that this action does not hide the file name. If you forget the password, the text inside often cannot be recovered, so it is important to keep the password secure and retain an unlocked original copy for yourself.

How to use it

  1. Select the PDF document you want to secure.
  2. Navigate to the security or password option.
  3. Enter your chosen password and confirm the action.
  4. Download or save the password-protected file to your device.

Common uses

Frequently asked questions

Does password protection hide the file name?

No, setting a password requires a code to open the file, but it does not hide the file name.

What happens if I forget the password?

If you forget the password, the text inside the file often cannot be retrieved. Therefore, you should keep the password in a safe place and keep an unlocked original for yourself.

Who can open the protected document?

Anyone who knows the correct password can open and view the document.