1. A system comprising a document-driven scanning input device communicating with a computer, said input device comprising scanning means for generating image data representing the image of a document, and means, responsive to placement of a document by a user, for drawing the document into scanning relationship with said scanning means so that said scanning means generates image data representing the image of said document, wherein said placement alone is sufficient to initiate said drawing, and said computer comprising means for displaying, in response to said placement, a plurality of user-selectable options for processing said image data.