If you want to change the OCR language, just click the drop-down button of the 'OCR Language' list and select the 3 digit language code. The interface is a bit outdated and some words can be not properly read if the page wasn't properly aligned.In 1995 it was one of the top 3 performers at the OCR accuracy contest organized by the University of Nevada in Las Vegas. It was developed at Hewlett Packard Laboratories between 19. The Tesseract OCR PDF engine of this software is an open-source product released by Google. FreeOCRįreeOCR is the free optical character recognition software for windows and supports scanning from most scanners and can also open most scanned PDF files and multi-page images as well as popular image file formats.