# gImageReader > Gtk/Qt front-end to tesseract-ocr **Wikidata**: [Q106947805](https://www.wikidata.org/wiki/Q106947805) **Source**: https://4ort.xyz/entity/gimagereader ## Summary gImageReader is a free desktop application that provides a graphical interface for performing optical character recognition (OCR) using the Tesseract OCR engine. It supports both GTK and Qt interfaces and runs on Linux and Microsoft Windows. As free software, it allows users to scan images or PDFs and extract editable text from them. ## Key Facts - **License**: GNU General Public License v3.0 - **Main Functionality**: Optical character recognition (OCR) - **Backend Engine**: Uses Tesseract - **Operating Systems Supported**: Linux (Debian package available), Microsoft Windows - **Programming Language**: C++ - **Source Code Repository**: https://github.com/manisandro/gImageReader - **Latest Stable Version**: 3.3.1 released on 2019-07-28 - **Instance Of**: Free software - **Wikipedia Presence**: Listed on Wikimedia Commons - **AlternativeTo ID**: gimagereader ## FAQs ### Q: What is gImageReader used for? A: gImageReader is used to perform optical character recognition (OCR) on images or scanned documents. It enables users to convert non-editable text within images into editable digital text by leveraging the Tesseract OCR engine. ### Q: Is gImageReader free to use? A: Yes, gImageReader is free software distributed under the GNU General Public License version 3.0. Users can freely run, modify, and redistribute it according to the license terms. ### Q: Which platforms support gImageReader? A: gImageReader supports Linux distributions such as Debian (via the `gimagereader` package) and Microsoft Windows. It has been compiled and tested on these systems with instructions available in its GitHub wiki. ## Why It Matters gImageReader plays a significant role in making OCR technology accessible to everyday users through an intuitive graphical interface. While Tesseract itself operates via command-line tools, gImageReader simplifies usage for those unfamiliar with terminal commands. This makes document digitization more approachable for students, researchers, and professionals who need to extract text from scanned materials without requiring proprietary software. Its open-source nature also ensures transparency, community-driven development, and long-term sustainability. ## Notable For - Being one of the few GUI frontends specifically designed for Tesseract OCR - Supporting both GTK and Qt frameworks, offering flexibility across desktop environments - Availability as a stable Debian package (`gimagereader`) - Continuous release history spanning multiple major and minor versions since at least 2014 - Hosting all source code publicly on GitHub with active documentation ## Body ### Overview gImageReader is a cross-platform frontend application built around the Tesseract OCR engine. It offers a user-friendly interface for performing OCR tasks on image files or scanned documents. The program supports various input formats including PNG, JPEG, TIFF, and PDF. ### Development & Licensing The project is hosted on GitHub under the repository URL [https://github.com/manisandro/gImageReader](https://github.com/manisandro/gImageReader). It is licensed under the GNU General Public License version 3.0, which classifies it as free software. This means users have full rights to access, inspect, modify, and share the source code. ### Technical Details - **Programming Language**: C++ - **GUI Frameworks**: Supports both GTK and Qt toolkits - **Dependencies**: Requires Tesseract OCR engine installed on the system - **Supported Platforms**: - Linux (confirmed via Debian packaging) - Microsoft Windows (compilation instructions provided) ### Release History Below are selected notable releases based on official tags from GitHub: | Version | Release Date | |---------|----------------| | 3.0 | 2014-12-12 | | 3.0.1 | 2015-01-04 | | 3.1 | 2015-04-30 | | 3.1.1 | 2015-06-10 | | 3.1.2 | 2015-06-30 | | 3.1.90 | 2016-04-27 | | 3.1.91 | 2016-05-03 | | 3.1.99 | 2016-10-13 | | 3.2.0 | 2016-11-23 | | 3.3.1 | 2019-07-28 | Each release includes detailed changelogs and binaries downloadable from the GitHub releases page. ### Distribution It is officially packaged for Debian-based Linux distributions under the name `gimagereader`. Additionally, compilation guides exist for other platforms like Windows, ensuring broader accessibility. ### Documentation & Community Resources Documentation exists primarily on third-party sites: - German-language guide: [https://wiki.ubuntuusers.de/gImageReader/](https://wiki.ubuntuusers.de/gImageReader/) - Software directory listing: [https://www.software.de/freeware/office/gimagereader-texterkennung-tool-als-opensource/](https://www.software.de/freeware/office/gimagereader-texterkennung-tool-als-opensource/) ## References 1. Free Software Directory 2. [Source](https://github.com/manisandro/gImageReader/wiki/Compiling-gImageReader) 3. [Source](https://packages.debian.org/buster/gimagereader) 4. [Source](https://github.com/manisandro/gImageReader/releases/tag/v3.3.1) 5. [Release 3.0. 2014](https://github.com/manisandro/gImageReader/releases/tag/v3.0) 6. [Release 3.0.1. 2015](https://github.com/manisandro/gImageReader/releases/tag/v3.0.1) 7. [Release 3.1. 2015](https://github.com/manisandro/gImageReader/releases/tag/v3.1) 8. [Release 3.1.1. 2015](https://github.com/manisandro/gImageReader/releases/tag/v3.1.1) 9. [Release 3.1.2. 2015](https://github.com/manisandro/gImageReader/releases/tag/v3.1.2) 10. [Release 3.1.90. 2016](https://github.com/manisandro/gImageReader/releases/tag/v3.1.90) 11. [Release 3.1.91. 2016](https://github.com/manisandro/gImageReader/releases/tag/v3.1.91) 12. [Release 3.1.99. 2016](https://github.com/manisandro/gImageReader/releases/tag/v3.1.99) 13. [Release 3.2.0. 2016](https://github.com/manisandro/gImageReader/releases/tag/v3.2.0) 14. [Release 3.2.1. 2017](https://github.com/manisandro/gImageReader/releases/tag/v3.2.1) 15. [Release 3.2.2. 2017](https://github.com/manisandro/gImageReader/releases/tag/v3.2.2) 16. [Release 3.2.3. 2017](https://github.com/manisandro/gImageReader/releases/tag/v3.2.3) 17. [Release 3.3.0. 2018](https://github.com/manisandro/gImageReader/releases/tag/v3.3.0) 18. [Release gImageReader-3.4.0. 2022](https://github.com/manisandro/gImageReader/releases/tag/v3.4.0) 19. [Release 3.4.1. 2023](https://github.com/manisandro/gImageReader/releases/tag/v3.4.1) 20. [Release 3.4.2. 2024](https://github.com/manisandro/gImageReader/releases/tag/v3.4.2) 21. [Release 3.4.3. 2025](https://github.com/manisandro/gImageReader/releases/tag/v3.4.3)