Class Libraries & REST APIs for the developers To manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, DeskTop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....formats Conversion from PPT to PPTX format in Aspose.Slides Conversion...thumbnail to JPEG Render Slide As Thumbnail to JPEG by User defined...