Wonderfulshare PDF Protect Pro is a powerful and easy-to-use PDF protection software. It helps you to protect your PDF files from unauthorized access, modification, copying, printing, and distribution. It enables you to password protect your PDF files with ease. You can also set various permissions for each user such as reading, editing, printing, etc. The software also allows you to add watermarks and encrypt your PDF files to prevent them from being stolen or misused. With its advanced features, you can also set expiration dates for your PDF files to ensure that they are only accessible during a certain period of time. Furthermore, you can also digitally sign your PDF files to add authenticity and integrity to your documents.
The last discontinued version, 1.3, was released in August 2007. It can still be downloaded from the official website.