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Dot Matrix OCR Troubleshooting with IronOCR

Curtis Chau
Curtis Chau
Updated: April 22, 2026

Can I read dot matrix printouts/scans in IronOCR?

Yes - accuracy does depend on the quality of the input image. Some pre-processing of the image can also help improve results, so we suggest this article which offers suggestions - Improve Dot Matrix OCR Performance Tutorial

For deeper processing to achieve reliable OCR results, we recommend ImageMagick for .NET as a free and very well-documented tool with filters comparable to Photoshop - Magick.NET-Q8-AnyCPU on NuGet

You may also try loading a dot matrix-specific language pack. We don't have this available but a great place to start is this project on GitHub - ameera3's OCR Expiration Date Project

For more information on adding a custom language pack in IronOCR - Custom Language Example in IronOCR

Curtis Chau
Technical Writer

Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.

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