1. An electronic image capture apparatus comprising: an image detecting device adapted to capture a set of sub-images or tiles corresponding to different areas of a document at known locations and electronic processing means adapted to receive the set of sub-images produced by the device and to process the sub-images to form a machine-readable text document equivalent to the portion of the document covered by the set of sub-images; characterised in that: the processing means includes an optical character recognition subroutine which is adapted to produce a first set of processable data files which each comprise a data set of characters corresponding to characters appearing in a respective sub-image in the set and the relative location of the characters in that sub-image; and the processing means is adapted to stitch together the characters stored in the data files to produce a machine readable text document.