You have an option to hide it.
- In your Joomla administrator panel, go to Components > JCal Pro:
- You will be taken to the "JCal Pro: Events" administrative page. In the top right corner, click "Options":
- You will see the "JCal Pro Configuration" screen. Click the "Display" tab:
- Locate the "Disable Footer" parameter and set it to "Yes":
When you check your JCal Pro frontend pages, you will see that the "Powered by JCal Pro - The Joomla Calendar" footer has now disappeared.