FREE ONLINE FILE TOOL
Password Protect PDF
Encrypt a PDF using AES-256 and your own password.
Upload your file
Selected tool
The selected document is processed to generate your download. See Privacy & security.
How to use Password Protect PDF
Use MallowShare’s Password Protect PDF workspace when you need to work with a file directly in your browser. The steps below describe what to check before sharing or downloading the result.
- Choose the PDF you want to protect.
- Enter a strong password and run protection when supported.
- Download the PDF and confirm that opening it requires the intended credentials.
What to check before you download
Password protection is not a replacement for controlling where sensitive documents are shared.
Keep a copy of your source file until you have opened and checked the exported result.
Password Protect PDF — common questions
What if I forget the password?
The service cannot promise recovery of a forgotten password. Store it safely.
Does password protection hide the file name?
No. It protects access to supported PDF contents, not all file metadata.