20. An apparatus comprising: a character recognition module including a zoning engine that zones an image of a paginated document to identify text zones and an optical character recognition (OCR) engine that performs character recognition on the text zones to generate textual content corresponding to the paginated document; and a re-zoning engine that identifies new text zones not identified by the zoning engine based on the generated textual content and the image of the paginated document and invokes the OCR engine to perform character recognition at least on the identified new text zones to generate updated textual content corresponding to the paginated document; wherein the character recognition module and the re-zoning engine are embodied by a digital processing device.
20. An apparatus comprising: a character recognition module including a zoning engine that zones an image of a paginated document to identify text zones and an optical character recognition (OCR) engine that performs character recognition on the text zones to generate textual content corresponding to the paginated document; and a re-zoning engine that identifies new text zones not identified by the zoning engine based on the generated textual content and the image of the paginated document and invokes the OCR engine to perform character recognition at least on the identified new text zones to generate updated textual content corresponding to the paginated document; wherein the character recognition module and the re-zoning engine are embodied by a digital processing device. 21. The apparatus as set forth in claim 20 , wherein the re-zoning engine (i) identifies a repeating text zone that is repeated at a same location on a plurality of pages and (ii) identifies a new text zone not identified by the zoning engine as a repetition of the repeating text zone at the same location on a page other than the plurality of pages.