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....); //创建演示文稿 Presentation pres = new Presentation (); //获取第一张幻灯片...方法 using ( Presentation sourcePres = new Presentation ()) { //设置页眉页脚可见性属性...