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....ISaveOptions interface and SaveOptions abstract class. IProgressCallback..."ConvertToPDF.pptx" ); try { $saveOptions = new PdfOptions (); $progressHandler...