My comments pertain to viewing a DOCX document either in the reading pane (⌘6 and ⌘7) or opening it (⌘O) in DevonThink, not opening it in MS Word.
File: DOCX file consisting of some annotations I made from your manual in liquid text exported as DOCX. DOCX margins are set to narrow (which means that it is not a problem margins being too large).
Note that DOCX is the only export option for annotations (the PDF option is terribly buggy).
Problem: if I increase zoom, I can no longer reader text at the margins horizontal. This problem does not occur with other files like RTF, RTFD, HTML, PDF etc