This is a known problem with Microsoft's “save as PDF.”
None of the Microsoft Office applications that natively generate PDF embed any OpenType CFF fonts (i.e., OpenType fonts with Type 1 style Bezier outlines) or even properly embed the font name such that the fonts can be accessed for display and print Acrobat/Reader or embedded subsequently in Acrobat Pro with Preflight.
Although Adobe has alerted Microsoft to this problem (which also occurs in all earlier versions of Microsoft “save as PDF”), Microsoft has refused so far to fix the bug.
The workaround is very simple. Acrobat (either Standard or Pro) for Windows adds a PDFMaker facility into Word, Excel, PowerPoint, and Outlook that properly generates PDF (via Save as Adobe PDF function). The fonts are properly embedded.
- Dov
PS: There are a whole bunch of other known shortcomings of Microsoft's PDF save functionality.