Bookmarks (outlines) are used to navigate quickly from one part of a document to another. The PDF Viewer shows bookmarks on the outlines viewer panel for a PDF document that contains them.
When you click on a bookmark, the PDF Viewer displays a page linked to the bookmark. Bookmarks can also open web pages.
Bookmarks are displayed in a hierarchical tree providing a convenient document overview. They can show or hide the document hierarchy in the outlines viewer. To open (or close) the bookmark items, click them with the mouse.
After the bookmark item is open you can see its children in the panel.
This section describes properties that can be used to customize bookmarks of a PDF Viewer and explains how they can be accessed both at design time and runtime.