The user sees a representative image (a digital photograph) of a page. The searchable text created from OCR is a stored in a different file, in essence creating a layered document. The METS/ALTO links these two such that when a portion or zone of the image is highlighted it is associated with the text it represents. Users can then search for phrases and see the matching term highlighted on the page image. They can also select and copy the text directly from the image.