IronOcr 4.1.0

IronOcr -The Ocr Library for C#

IronOCR is an advanced OCR (Optical Character Recognition) & Barcode library for C# and VB.Net

The engine adds OCR functionality to Desktop, Console and Web applications in minutes. IronOCR reads all major Barcode and QR codes standards.

What makes IronOCR different is how well it deals with poor quality scans. IronOCR can read scans with low resolution, paper distortion and background noise.  It takes the time to analyze the input file and prepare it for OCR to achieve consistent results every time.

Image pre-processing supports: Rotation & De-Skewing, Background Noise Cleaning, Resolution Enhancement, Increasing Contrast, Colour Simplification, and Setting Crop Regions.

IronOCR automatically detects the quality of an image before reading. Developers can adjust advanced image processing settings if needed.

Data output options include: Plain Text, Barcode Data, Object model data (headings, paragraphs, lines, words  characters for each page).

Library Supports: Console Applications, ASP.NET Web Applications, MVC, Web APIs, and Desktop Applications written in any .Net language such as C# or VB.Net.

Requires: .Net framework 4.0 or above on the Windows Platform including Cloud hosting such as Azure.  Supports multithreading to improve OCR performance on multi-core servers.

Licensing & Support available for commercial deployments. For code examples, documentation & more visit For support please email us at

There is a newer version of this package available.
See the version list below for details.
Install-Package IronOcr -Version 4.1.0
dotnet add package IronOcr --version 4.1.0
<PackageReference Include="IronOcr" Version="4.1.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add IronOcr --version 4.1.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

This build adds:

- Image Processing
- Barcode Reading Support
- International Language Support
- Object Model Output


This package has no dependencies.

Version History

Version Downloads Last updated
4.4.0 32,774 6/21/2018 8,648 4/9/2018 2,335 1/22/2018 1,499 1/19/2018 546 1/15/2018 1,074 12/1/2017
4.2.2 366 12/1/2017 1,992 9/9/2017 248 9/8/2017 252 9/6/2017
4.2.0 310 9/5/2017
4.1.1 1,188 8/4/2017
4.1.0 239 8/2/2017
4.0.10 1,124 1/12/2017
4.0.9 401 12/20/2016
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