Use this form to protect a PDF file with user password, owner password and all kinds of restrictions.
1. Click "Choose File" button (different web browser may have different button name such as "browse..."), a browse window will open, select a local Adobe PDF file and click "Open" button.
2. Enter a user password if you want this PDF needs password to open. Enter an owner password if you want to set restrictions. Choose PDF restrictions from list.
3. Click "Protect Now!" button to encrypt the PDF file. Wait a few seconds for the task to finish.
4. You can download or view the output PDF file on your web browser after conversion. No email address required to receive files.