Thanks for the response!

After a little Google research, I discovered that LibreOffice's Writer does exactly what I wanted with its text formfields.

I just deleted the ones I made in MS Word, then opened the document file again in Writer and recreated the formfields with a couple simple actions, and clicked "export as PDF" and done!

Wish MS Word allowed us to do it as easy, would have made things a lot simpler for me, but oh well. Jobs done now, and the boss is pleased with the result!