Converting from Word degrades graphic quality - why, and how do we fix it?

[IrishNJ]

I've designed our company logo in Illustrator and it's a large, 300dpi, file.
I've tried exporting it in various formats. JPG, PNG, TIFF, and then inserting into my business letter headed document (Word) and it looks fine however when I then try to "Convert to PDF using Adobe Acrobat DC", which is an option in Word, the resulting PDF file has significantly degraded the graphic quality making it unusable.

I assume this is a settings issue but I'm not sure how to fix it.  Can anyone point me in the right direction?

Thank you.
NJ

[IrishNJ · Accepted solution]

Sigh. Got it.

I'd changed the settings in Adobe Acrobat DC but Word also has an "ACROBAT" menu and it was just set to "Standard".  I changed that to "High Quality Print" and everything's good in the world again!

Thank you (me).

NJ