Did you try to Print it to PDF?
How did you usually create a pdf out of the word document? There are a few ways to do it
- print to to pdf as Bob mentioned
- you can use the Acrobat menu that should appear in Word
- you can drag and drop the file into acrobat
- you can right click on the file and there should be a convert to pdf option in the menu
Make sure you are using Acrobat and not the free Adobe Reader
If Acrobat is installed, but Word does not include the PDF addons, then run a reinstall/repair of word