About The PDF Protect (Password)

PDF Protect adds password protection to a PDF and exports a new encrypted copy. It is meant for everyday document sharing where the recipient should need a password before opening the file.

The protection step runs in your browser with the selected PDF and password. The original PDF is left unchanged, and IO Tools cannot recover a password you forget.

How to Protect a PDF Online

1. Choose the PDF document you want to protect.
2. Enter a password and confirm it.
3. Open more options if your process needs a separate owner password.
4. Protect the PDF, then download the protected copy.
5. Store the password somewhere secure. The site does not keep or recover it for you.

Choosing Options Correctly

User password:
This is the password someone needs to open the protected PDF. Use a long, unique password stored in a password manager.

Owner password:
Use a separate owner password only when your workflow requires one. For normal sharing, the user password is the important control.

Common Use Cases

• Protecting a contract draft, invoice, statement, form, or internal document before sending it.
• Creating a password-protected copy while keeping the original PDF unchanged.
• Adding a basic access barrier before sharing a file over email or chat.

Quick FAQ

Does this overwrite my PDF?
No. The protected document is downloaded as a new file.

Are files uploaded to a server?
No. Password protection is designed to run locally in the browser.

Can IO Tools recover a forgotten password?
No. Keep the password somewhere safe before sharing or archiving the protected PDF.

How strong should the password be?
Use a long, unique password. PDF protection is only as useful as the password and the PDF reader support for the encryption.