In PDF's you can have a headings/bookmarks side panel that lets you jump to different chapters or sections (of course, not all PDF's, just those where these have been added).
In Word, I can "Save a Copy" as PDF, and I find the rendering to be really good/accurate. However, I would like to also create headings Bookmarks into the Word document that are saved into the PDF. I have tried creating Word Bookmarks, and this doesn't work, i.e., when I save to PDF, the bookmarks are not there (the "Show Bookmarks" option in PDF readers is greyed out, so they are not there).
How can I create Bookmarks in MS Word that will give me chapter/heading/section bookmarks in PDF when I save to a PDF?