I'm spending some time puzzling with converting PowerPoint documents to PDF files. I found out that I need to use the PresentationEx class to load documents of type .pptx, but I can't see that this class has any Save or SaveToPdf (obsolete) method like the Presentation class has got. Is covertion of .pptx files to pdf not supported (yet)?
If so, what PowerPoint file formats are supported for PDF covertion - only .ppt files?
If not, how can I achieve this?
Thanks and regards