1. A secure document data capture system for generating a data structure, comprising a data field value associated with each of a plurality of identified data fields, from a document image comprising text representing each of such data field values, the secure document data capture system comprising: a character recognition system receiving the document image and recognizing characters within the text to generate, for each of the identified data fields, a data field value for association therewith; a validation engine for identifying a subset of the identified data fields, the subset of the identified data fields being those data fields with which its associated data field value includes at least one suspect character, a suspect character being a character which fails to comply with a validation rule thereby indicating that that character recognition system erred in recognizing such character; an exception handling system: providing an exception image to a first client system, the exception image comprising a portion of the document image which includes text of the at least one suspect character with a context portion of the document image redacted, the context portion of the document image being a portion of the document image which comprises text which discloses a meaning of the at least one suspect character; and receiving from the first client system, user input of a replacement character for each suspect character; and the secure data capture system generating the data structure utilizing, for each identified data field, the data field values generated by the character recognition system with substitution of the replacement character from the exception handling system for each suspect character.