Hi Charles, no I don´t think that is the problem. I don´t have these "ood-page" section breaks, it was an eBook, no left/right page problems.
But I have now discovered that the problem exist also in other of my Word documents that has been converted to PDF. I presume that a PDF file is fixed and nothing will change, that is the whole idea with PDF, right?, but in some Word files I now see that the line spacing is not the same as in the converted PDF file. The differences Word to PDF are like 1 to 1,25/ 1,15 to 1,33/1 to 1,24. This I have not noticed before when looking at those files, although it beats me when this problem came into my pc.

It is the Word files that look wrong og distorted in some way, not the PDFs, and these new discoveries for sure take focus off the purchased font I mentioned in my first post.

In spring 2015 I had a new computer and reinstalled the Office 365. The problem doesn´t seem to appear in Word documents created AFTER this point.
Finally I should add that some (not all) of the distorted Word files were created and saved in compatibility mode.