MS Word 2007 exports files as PDF.
But is there a way to generate a PDF file that opens with the bookmarks panel displaying? With the Adobe PDF writer, you have an option under Preferences for Open File which allows to you to set the initial view parameters - but there doesn't seem to be any equivalent with the MS Word 2007 PDF Export.
(Reason being, I'm doing a tech-writing job for a corporate, and getting any extra software installed is difficult/impossible.)