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...."Arial" , 10 ), new SolidBrush ( Color . Red ), 15 , 45 ); graphics... DrawRectangle ( new Pen ( Color . Red ), new Rectangle ( 30...