Portable Document Format files, or PDFs, are easily presented and exchanged across softwares—even Word—so here’s how to convert a PDF into a Microsoft Word document. Converting a PDF into a Microsoft ...

As for converting to word, it's going to be a mess as word doesn't do the same stuff as publisher. You can always try to save as a word file from publisher but IIRC it only saves the text frames.

To convert PDFs into Word files and on Mac, you should edit them with Google Docs or other third-party applications.