If you want to add password protection to your PDF files, pdfprotect is a free web tool that will help you to create password protection your important PDF files. It is very simple and doesnâ€™t require any downloads. It allows only to converting files upto 10 MB.
To add password simply upload your PDF files into pdfprotect website and add your password and click â€œProtect!â€ button after process you will get protected files for download. It will open only when you type your password.