Also, replace the ambiguous characters like D/0 or 3/8 to something a bit more recognizable like D becomes d and 8 becomes X and then do a find-replace after th

Also, replace the ambiguous characters like D/0 or 3/8 to something a bit more recognizable like D becomes d and 8 becomes X and then do a find-replace after the OCR process. Was there really a need to write the OCR software from scratch?