To create a new bookmark for the page currently displayed in the Viewer, click SELECT on the New Bookmark
button at the top of the Navigator.
In the New Bookmark window, the text at the top specifies the current page. You can edit the text in the "Bookmark for" field, which is used in the Existing Bookmarks list when the Navigator is in Bookmarks mode. You can also type an annotation in the Comment pane.
Click SELECT on the Create
button to create the new bookmark. Or, if you decide not to create a bookmark, dismiss the New Bookmark window.