Heckert GNU white.svg
Developer(s)Antonio Diaz Diaz
Stable release0.27 (11 January 2019; 13 months ago (2019-01-11)[1]) [±]
Operating systemGNU, Linux, FreeBSD, NetBSD, OpenBSD, OS X
TypeOptical character recognition

Ocrad is an optical character recognition program and part of the GNU Project. It is free software licensed under the GNU GPL.

Based on a feature extraction method, it reads images in portable pixmap formats known as Portable anymap and produces text in byte (8-bit) or UTF-8 formats. Also included is a layout analyser, able to separate the columns or blocks of text normally found on printed pages.

User interface

Ocrad can be used as a stand-alone command-line application or as a back-end to other programs.

Kooka, which was the KDE environment's default scanning application until KDE 4, can use Ocrad as its OCR engine.[2] Since conversion to newer Qt versions, current versions of KDE no longer contain Kooka; development continues in the KDE git repository.[3] Ocrad can be also used as an OCR engine in OCRFeeder.[4]


Ocrad has been developed by Antonio Diaz Diaz since 2003. Version 0.7 was released in February 2004, 0.14 in February 2006 and 0.18 in May 2009. It is written in C++.

Archives of the bug-ocrad mailing list go back to October 2003.[5]


  1. ^ "GNU Ocrad". directory.fsf.org. FSF. 11 January 2019. Retrieved 27 May 2019.
  2. ^ "Kooka home page". Archived from the original on 22 July 2010. Retrieved 19 July 2010.
  3. ^ "KDE Kooka git source code commit log". Retrieved 30 March 2019.
  4. ^ "GNOME GIT source code repository". Retrieved 3 February 2010.
  5. ^ "bug-ocrad Archives". Retrieved 20 July 2010.

External links

This page was last updated at 2020-02-28 21:15 UTC. Update now. View original page.

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