Comparison of optical character recognition software

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This comparison of optical character recognition software includes:

  • OCR engines, that do the actual character identification
  • Layout analysis software, that divide scanned documents into zones suitable for OCR
  • Graphical interfaces to one or more OCR engines
  • Software development kits that are used to add OCR capabilities to other software (e.g. forms processing applications, document imaging management systems, e-discovery systems, records management solutions)
Sortable table
Name Founded year Latest stable version Release year License Online Windows Mac OS X Linux BSD Android iOS Programming language SDK? Languages Fonts Output Formats Notes
ABBYY FineReader 1989 16 2022 Proprietary Yes Yes Yes No Yes Yes Yes C/C++ Yes 192[1] All fonts DOC, DOCX, XLS, XLSX, PPTX, RTF, PDF, HTML, CSV, TXT, ODT, DjVu, EPUB, FB2[2] ABBYY also supplies SDKs for embedded and mobile devices. Professional, Corporate and Site License Editions for Windows, Express Edition for Mac.[3]
AnyDoc Software 1989 ? ? Proprietary No Yes No No No ? ? VBScript ? ? ? Works with structured, semi-structured, and unstructured documents.
Asprise OCR SDK 1998 15 2015 Proprietary Yes Yes Yes Yes Yes ? ? Java, C#,VB.NET, C/C++/Delphi Yes 20+[4] ? Plain text, searchable PDF, XML[5] Java, C#, VB.NET, C/C++/Delphi SDKs for OCR and Barcode recognition on Windows, Linux, Mac OS X and Unix.[6]
CuneiForm 1996 1.1 2011 BSD variant No Yes Yes Yes Yes ? ? C/C++ Yes 28 Any printed font HTML, hOCR, native, RTF, TeX, TXT[7] Enterprise-class system, can save text formatting and recognizes complicated tables of any structure
Dynamsoft OCR SDK 2003 8.2 2012 Proprietary Yes Yes No No No ? ? C/C++ Yes 40+[8] ? PDF, TXT
E-aksharayan 2010 Yes No Yes No ? ? 14 RTF, TXT, BRL
GOCR 2000 0.52[9] 2018 GPL Yes[10] Yes Yes Yes Yes ? ? C ? 20+ ?
Google Drive OCR or Google Cloud Vision 2015 Proprietary Yes Browser Browser Browser Unknown ? ? Unknown Yes 200+ All fonts text Google blog post[11][12]
Microsoft Office Document Imaging ? Office 2007 2007 Proprietary No Yes No No No ?
Microsoft Office OneNote 2007 2011 ? 2007 Proprietary No Yes No No No ? ? ? ? ? ?
OCRFeeder 2009-03 0.8.5 2022 GPL No No No Yes No ? ? Python ? ? ? Features a full user interface and has a command-line tool for automatic operations. Has its own segmentation algorithm but uses system-wide OCR engines like Tesseract or Ocrad
Ocrad ? 0.28[13] 2022 GPL Yes No Yes Yes Yes ? ? C++ Yes Latin alphabet ? Command line
OCRopus 2007 1.3.3 2017 Apache No No Yes Yes Yes ? ? Python ? All languages using Latin script (other languages can be trained) Normal Latin script and Fraktur (other scripts can be trained) TXT, hOCR,[14] PDF[15] Pluggable framework under active development, used for Google Books
OmniPage 1970s 19.2 2015 Proprietary Yes Yes Yes Yes No ? ? C/C++, C#[16] Yes 125[17] Machine and handprinted fonts DOC/DOCX XLS/XLSX PPTX RTF PDF PDF/A Searchable PDF HTML Text XML ePUB MP3 Product of Nuance Communications
Puma.NET ? ? 2009 BSD No Yes No No No ? ? C# Yes 28 Any printed font .NET OCR SDK based on Cognitive Technologies' CuneiForm recognition engine. Wraps Puma COM server and provides simplified API for .NET applications
ReadSoft ? ? ? Proprietary No Yes No No No ? ? ? ? ? ? Scan, capture and classify business documents such as invoices, forms and purchase orders integrated with business processes.
Scantron ? ? ? Proprietary No Yes No No No ? ? ? ? ? ? For working with localized interfaces, corresponding language support is required.
SmartScore 1991 10.5.8 2015 Proprietary No Yes Yes No No ? ? ? ? ? ? For musical scores
Tesseract 1985 5.3.3 2023 Apache No Yes Yes Yes Yes ? ? C++, C Yes 100+[18] Any printed font Text, ALTO, hOCR,[19] PDF, others with different user interfaces[20] or the API Created by Hewlett-Packard; under further development by Google[21]
Name Founded year Latest stable version Release year License Online Windows Mac OS X Linux BSD Android iOS Programming language SDK? Languages Fonts Output Formats Notes

Evaluation

A 2016 analysis of the accuracy and reliability of the OCR packages Google Docs OCR, Tesseract, ABBYY FineReader, and Transym, employing a dataset including 1227 images from 15 different categories concluded Google Docs OCR and ABBYY to be performing better than others.[22]

References

  1. ↑ "ABBYY FineReader 14: Technical Specifications". Finereader.abbyy.com. https://www.abbyy.com/en-eu/finereader/tech-specs/. Retrieved 2017-02-23. 
  2. ↑ "ABBYY FineReader 11: Technical Specifications". Finereader.abbyy.com. http://finereader.abbyy.com/professional/tech_specs/. Retrieved 2013-09-12. 
  3. ↑ "Top OCR Software". Ocrworld.com. 2010-03-30. http://ocrworld.com/software/5-in-depth/149-top-ocr-software.html. Retrieved 2013-09-12. 
  4. ↑ "Asprise OCR SDK Features". asprise.com. http://asprise.com/royalty-free-library/java-ocr-api-overview.html. Retrieved 2014-06-21. 
  5. ↑ "Asprise Java OCR Library Features". asprise.com. http://asprise.com/royalty-free-library/java-ocr-api-overview.html. Retrieved 2014-06-21. 
  6. ↑ "Asprise Java, C#/VB.NET OCR API". asprise.com. 2015-11-19. http://asprise.com/royalty-free-library/ocr-api-for-java-csharp-vb.net.html. Retrieved 2015-11-19. 
  7. ↑ Debian manual page for Cuneiform for Linux version 1.1.0
  8. ↑ "OCR SDK Language Packages Download". Dynamsoft.com. http://www.dynamsoft.com/Downloads/OCR-Language-Package.aspx. Retrieved 2013-09-12. 
  9. ↑ "GOCR Homepage". wasd.urz.uni-magdeburg.de. https://wasd.urz.uni-magdeburg.de/jschulen/ocr/. Retrieved 2018-10-17. 
  10. ↑ "GOCR". Jocr.sourceforge.net. http://jocr.sourceforge.net/. Retrieved 2013-09-12. 
  11. ↑ "Supported languages". Feb 11, 2022. https://support.google.com/drive/answer/176692#zippy=%2Csupported-languages. 
  12. ↑ Ashok Popat (Sep 4, 2015). "IEEE SPS: Optical Character Recognition for Most of the World's Languages". https://www.youtube.com/watch?v=E0y41YU85tI. 
  13. ↑ Diaz, Antonio (2022-01-17). "GNU Ocrad 0.28 released" (Mailing list). info-gnu.
  14. ↑ OCRopus includes the ocropus-hocr tool which produces hOCR from the recognition results.
  15. ↑ In combination with the hocr-tools
  16. ↑ "OmniPage CSDK - OCR Document Capture Toolkit | Document Imaging & OCR". Nuance. http://www.nuance.com/imaging/omnipage/omnipage-csdk.asp. Retrieved 2013-09-12. 
  17. ↑ "OmniPage Standard Document Conversion". Nuance. http://www.nuance.com/for-business/by-product/omnipage/standard/index.htm. Retrieved 2014-02-25. 
  18. ↑ Based on count of language training files for version 3.04. Available at the download page.
  19. ↑ Usage explained in the Tesseract Readme and FAQ
  20. ↑ Such as ODF with OCRFeeder
  21. ↑ "GitHub - tesseract-ocr/tesseract: Tesseract Open Source OCR Engine (main repository)". https://github.com/tesseract-ocr/tesseract#brief-history/. Retrieved 2018-11-05. 
  22. ↑ Assefi, Mehdi (2016-12-01). "OCR as a Service: An Experimental Evaluation of Google Docs OCR, Tesseract, ABBYY FineReader, and Transym". https://www.researchgate.net/publication/310645810. 



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