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Source Han Sans TC/SC OTF Fonts applying partially

I am using Source Han Sans OTF fonts with Sharepoint. With Chinese input text,these fonts are partially applying to Chinese text While converting aspose.slides to PDF. I tried installing these fonts on Server and Client side but nothing works. Aspose.Slides version is 17.11 and PDF is 9.0

I am loading the fonts using LoadExternalFonts and applying it portion by portion using,

portion.PortionFormat.EastAsianFont = new FontData(“Source Han Sans TC Light”);

Tried saving the pptx before saving as PDF, still the issue remains same. Please advise.

Thanks in advance.

@sunitham,

I have observed the information shared by you and suggest you to please try using Aspose.Slides for .NET 18.5 on your end first. If you still face issue then please provide a working sample project along with source fonts, presentation, generated output and desired output required on your end. We will be able to investigate the issue on our end on provision of requested information.