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....//Create empty Bitmap Bitmap bmp = new Bitmap ( 800 , 800 ); //Create...Graphics g = Graphics . FromImage ( bmp ); g . Clear ( Color . Blue );...