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....$connector -> reroute (); $input -> save ( "output.pptx" , SaveFormat...setText ( "第二个根节点" ); $pres -> save ( "out.pptx" , SaveFormat ::...