Optical Character Recognition (OCR) is the process that converts an image of text into a machine-readable text format which is used where data entering is required. The verification process involves reviewing the OCR results and manually correcting any errors or inaccuracies. OCR APIs are built on OCR technology but what differentiates them is that they are trained to extract data from specific documents, this training allows them to be more accurate in extracting data from those specific document types.