Creating Bookmarks within Adobe Acrobat
The Adobe Acrobat Users Community http://acrobatusers.com/ has all you need to learn how to add bookmarks to your PDF File. Here is a transcript of one of the many useful tutorials; There are video's too if that's your learning style.
How to add PDF bookmarks to a document using Acrobat X or XI
Donna Baker – March 26, 2012
Bookmarks are a great way to help your readers find content in your PDF file. To set the magnification, click Fit to Window Width and Enable Scrolling. Use the navigation tools to display the first chapter heading. Click the New Bookmark button. A new bookmark shows in the pane. Type the chapter’s name for the bookmark and click anywhere off the field.
Navigate to the next chapter’s start page. Let’s automate the bookmark process. Click the Hand tool, then click into the text to activate the Text cursor. Double-click the title text to select it, right-click to open the shortcut menu, and click Add Bookmark. Or you can use the shortcut keys: CTRL + B (Windows) or COMMAND + B (Mac). Acrobat automatically adds the new bookmark. Click anywhere off the label to deselect the text.
Add the rest of the bookmarks. To test the bookmarks, click a bookmark in the list, and you see the document jump to the start of that chapter.
You can also add bookmarks to specific content in a chapter, like an image. Find the image you want to bookmark, set the magnification you want to use, and click the New Bookmark button. A blank field shows below the selected bookmark. Type the bookmark’s label, then click anywhere to deselect the field.
To test the image’s bookmark, click a different bookmark and then click the image’s bookmark—there's the image!
To set how the document opens, click File > Properties. When the Document Properties dialog box opens, click the Initial View tab. Click the Navigation tab drop-down arrow and click Bookmarks Panel and Page. Click OK to close the dialog box.
Save the file to save the settings. Close and then reopen the document. The file opens at the first page, shows your list of Bookmarks, and uses the designated magnification.