Enhancing image quality of an initial full image of a document page includes obtaining the initial full image of a document page, determining that at least a subset of text in the initial full image does not meet a predefined readability criterion, identifying at least one of a plurality of page fragments in the initial full image of the document page for enhancement, and sending an instruction to a mobile device to provide a photograph of the at least one of the page fragments. The photograph provides a separate fragment image for the at least one of the page fragments. The separate fragment image is then obtained from the mobile device and merged into the initial full image to provide an enhanced full image.