Rendering Symbol font to PDF with Aspose Slides

I am using Aspose Slides to convert user generated PPTX files to PDF. We have a file where the user has used the Symbol font, which when rendered into a PDF displays only as a box.I have tried embedding the font, but that does not seem to work.Here is the relevant codePdfOptions pdfOptions = new PdfOptions(){ EmbedFullFonts = true};ppt.Save(outputStream, SaveFormat.Pdf, pdfOptions);pdfBytes = outputStream.ToArray();The result is empty squares in place of the symbols. Example of failed renderingExample of symbols that are not being rendered...Read more