OCR
Zone OCR solutions traditionally require you to specify a region on the page where index information is found. This region is recognized and the result is inserted into an index field. The problem with traditional zone OCR is that if the region is moved slightly due to variations in scanning, the result could contain extra neighboring characters or cut off desired characters. This limits the usefulness of traditional zone OCR to documents where the index value is in the exact same place every time and has plenty of white space around it.