The 
Document View is displayed when a document is opened and contains the Image Pane, Text Pane, and Thumbnails Pane.
When a scanned document is opened from the document list or thumbnails, the image is displayed in the Image Pane so you can review the document, make sure it has been processed appropriately, and rescan if necessary.
The Text Pane displays the extracted or OCRed text of the scanned document.
The Thumbnails Pane displays thumbnail images of each page in the open document, which allows you to navigate among and modify pages in a different view. You can rearrange the pages by dragging and dropping thumbnails in different locations within the same document, or by dragging them over another document in the Document List pane.
