https://bugs.winehq.org/show_bug.cgi?id=40377
--- Comment #5 from hl w ms22170@outlook.com --- I don't think it duplicated.
With the method mentioned in Bug 31662 (replacing fontsub.dll and t2embed.dll), I can successfully embed fonts which are stored as TTF format when exporting to PDF. You can see it in the PDF attachment.
My question is, however, I cannot embed fonts which are stored as TTC format. Some fonts can be replaced by TTF fonts such as SimSun, and it works.But some of them cannot be replaced such as Cambria Math, or Microsoft Word won't work properly.