Bookmarks typically represent an outline of a document. Since each bookmark is associated to a specific page, it provides the ability to link to a different page or section in a document allowing the user to navigate interactively from one part of the document to another.

Outline tree
An introduction to outline tree.

Adding a bookmark
To add a bookmark with color in an existing document.

Editing a bookmark
To edit a bookmark in an existing document.

Remove a bookmark
To remove a bookmark in an existing document.