links do not work

I use MS Publisher 2013 to create newsletters.  I print as a PDF.  I have site links and in-document page links in the newsletter.  The links have always worked.  This month, not so.   I think I changed some options on my PC.  How do I get the links to work again.  I've looked through settings for MS Publisher, Acrobat DC and my PC Security. 

I can't remember what I changed.

Thanks a bunch

Lakeview