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....DrawLine ( pen , new Point ( 5 , 20 ), new Point ( 50 , 20 )); //...new Point ( 10 , 20 ), new Point ( 12 , 45 ), new Point ( 22...