In Word for Mac, choosing to save a PDF with the best for electronic distribution option sends your file to a Microsoft server for processing. This can create unexpected results in the resulting PDF. If you can post before and after screen shots using the Insert image tool,
I may be able to offer suggestions about how to improve the output.
If you can afford it, you'll get better results with the subscription version of Adobe Acrobat (not Acrobat Reader). That version will add an Acrobat PDF button to the Home tab in Word that will do a better job of capturing both hyperlinks and the correct appearance of your file.
As alternatives, you can:
- upload your file to OneDrive, open your document in Word for the web and create a PDF.
- create a PDF using the best for print option, then open the PDF in a third-party PDF editor and re-add the hyperlinks.
- download and install the free program LibreOffice, open your Word file in it and create a PDF. It will retain the hyperlinks.
- import your file into Pages on your Mac, then create a PDF that retains hyperlinks.