Fecha de publicación: 29/09/2005 Fuente: Wipo "digitalization" A method (200) of modifying a digital document (300). The method (200) converts the digital document (300) into one or more first color digital images and generates a hard copy of the digital document (300). The method (200) generates one or more second color digital images of a modified version of the hard copy of the digital document (300). The method (200) compares the first one or more color digital images with the second one or more color digital images to determine the modifications made to the hard copy of the digital document (300) and modifies the digital document (300) based on the determined modifications.