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 ( 200 , 50 , 50 , 90 ... Shapes . Add ( arc ); float [] curPos = arc . GetEndPosition...