When opened in powerpoint, it asks to repair and after repairing z order on the first page is wrong. During conversion I also see missing font exceptions (running in debugger), but execution continues. I’m using Aspose.PDF for .Net 19.3.0 and following options:
var options = new PptxSaveOptions();
options.SlidesAsImages = false;
options.TryMergeAdjacentSameBackgroundImages = true;
options.OptimizeTextBoxes = true;
options.SeparateImages = true;
pdf.Save(pptFilePath, options);
Original and converted files attached:
pdf.zip (9.1 MB)