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....= System :: MakeObject < Presentation > ( u "pres-4x3-aspect-ratio...= System :: MakeObject < Presentation > ( u "pres.pptx" ); //...