[Zubersoft]

The bookmarks tab only applies to bookmarks created in MobileSheets itself. The bookmarks window (which McAroni referred to) has a "Show pdf bookmarks" checkbox that you can check to see the PDFs in the bookmark itself. I should add that if you enable Settings->Import Settings->Convert PDF Bookmarks, then you import the PDF with bookmarks, those bookmarks will show up on the bookmarks tab.

Mike