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)); // HatchBrush...DrawPolygon(pen, new Point[] { new Point(10, 20), new Point(12, 45), new...