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....Size ( 100 , 100 )); Pen pen = new Pen ( Color . Red , 10 );...DrawRectangle ( pen , 10 , 10 , 80 , 80 ); pen . LineJoin = LineJoin...