With the latest version of Aspose.Slides - 21.12 PPTX to PDF some chart labels disappear (see the attached PPTX and PDF PPTX-to-PDF.zip (238.2 KB)).
Here is the code I used to reproduce the issue:
// Instantiate a Presentation object that represents a PPT file
Presentation presentation = new Presentation(“test.pptx”);
// Save the presentation as PDF presentation.Save("PPTX-to-PDF.pdf", SaveFormat.Pdf);
Is there something I can do to prevent this?