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 an instance of Pen $pen = new Pen (); \ # Create and initialize...screen. $graphic -> drawArc ( new Pen ( $color -> getBlack ()), 0 ...