Edit from the Pages Pane
Many of the menu commands discussed in the following sections are exact copies of Page Thumbnails pane Options menu commands and Page Thumbnails pane context menu commands. When you use these commands in the Page Thumbnails pane, you work with a single thumbnail or selection of thumbnails. When you use a command from the Pages pane, you can specify any page in the document. The previous sections dealt with using editing commands in a specific manner within the Page Thumbnails pane. The following sections show you how to use commands from the Pages pane to edit selected pages within your documents.
You can add existing documents to any PDF document by using a command from the Insert Pages section of the Pages ...