GNU Ocrad is an OCR (Optical Character Recognition) program implemented as a filter and based on a feature extraction method. It reads a bitmap image in pbm format and outputs text in ISO-8859-1 (Latin-1) charset. Also includes a layout analyser able to separate the columns or blocks of text normally found on printed pages. It can be used as a stand-alone console application, or as a backend to other programs. WWW: https://www.gnu.org/software/ocrad/ocrad.html