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....); // 使用 Pen 工具绘制矩形 graphic . DrawRectangle ( new Pen ( Color...graphic . DrawRectangle ( new Pen ( new SolidBrush ( Color . Blue...