Hello,
I am currently working on this issue trying to reproduce it at my end.
Meanwhile, could you try setting the "NeverEmbedFonts" property of the PdfExport object to "" ( empty string) before exporting and sharing your observations?
For more information:
It would also be helpful if you could share with me a sample report in rdf format. You may refer to the following link for more information:
http://helpcentral.componentone.com/nethelp/AR7Help/OnlineEn/SaveandLoadReportFilesRDF.html
Best Regards,
Tuhina