1. A method comprising: zoning an image of a paginated document to identify text zones; performing first-pass character recognition on the text zones to generate textual content corresponding to the paginated document; re-zoning the image of the paginated document based on the textual content to identify one or more new text zones; and performing second-pass character recognition on at least the new text zones to generate updated textual content corresponding to the paginated document; wherein the method is performed by a digital processor.