What is OCR conversion?
Optical Character Recognition (OCR) is a technology where typed or printed documents can be scanned as an electronic image. The characters can be recognized from the image and translated into a text format such as ASCII. This can be done with documents where you may only have the printed or paper copy, but do not have an electronic copy. The US Postal Service uses OCR technology to process a lot of its mail. It’s best to scan documents at a resolution of 300 dpi for the best character recognition.