Such editing of PDF documents could be made for example with Adobe Pro ( Adobe Acrobat 9) or by using online solutions. There is a possibility to add bookmarks to a ready PDF but it has considerable functional disadvantages. Best practice for MAC users having no bookmarking feature is to get the document converted on a Windows PC. Although Word for MAC has the PDF conversion possibility, only the most recent versions have the bookmarking feature. MS Word versions for Windows starting from 2007 have a built-in function to generate a bookmarked PDF. Navigate back to Section 2 for instructions on applying Heading styles.
If you have not formatted titles using the Heading styles you need to do that first.
Only after the titles in your Word document are properly formatted with Heading styles it's just a few clicks to get a bookmarked PDF.
