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....Add ( layer ); // Get shape by ID Shape shape = page . Shapes ...@"c:\temp\Drawing1.vsdx" ); // get page by ID Page page = diagram . Pages ...