Foreign Language appears as square boxes after converting msg to pdt

Hello,
We are using Aspose.WORD/ aspose.EMAIL to convert emails to a downloadable PDF. All foreign languages are displayed as square boxes. Will the suggestions above solve this issue?

@Rajurajajee Could you please attach your source e-mail message, an intermediate MHTML document and output PDF documents produced on your side? We will check the issue and provide you more information.