We are thinking of purchasing your GroupDocs Viewer. I downloaded the sample code from here:
I am using the GroupDcos.Viewer.AspNetMvc project in your Examples. The Viewer works great but I noticed the Rotate buttons are missing so I changed the Rotate flag in the UIConfig.cs from FALSE to TRUE and the rotate buttons now appear in the Viewer. However, they do not work. Clicking the rotate buttons does nothing to the PDF showing in the viewer. Can you provide an example how to enable those buttons in your Example project? This is a requirement for us before we can purchase the full license.