I am using get GetThumbnail(size) to generate an image file from a slide.
It is working locally (VS2013) but when I deploy to the server (IIS8) some image text overlaps.
Thanks for inquiring Aspose.Slides.
I have observed the requirements shared by you and like to share that there is no such dependency or configuration for generating slide thumbnail using Aspose.Slides. I request you to please try using Aspose.Slides for .NET 16.11.0 on your end and if there is still an issue then please share working sample project, source presentation, generated thumbnail in development and server deployed environment. We will investigate the issue further on our end to help you out.