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(line);Arc arc = new Arc(110, 60, 50, 90, -90);graph1...Shapes.Add(arc);arc.GraphInfo.Color = Color.Red;arc.GraphInfo...