C# OCR Object Reference

IronOCR is an advanced OCR (Optical Character Recognition) library for C# and .NET

IronOCR reads Text, Barcodes & QR from all major image and PDF formats using the latest Tesseract 5 engine. This library adds OCR functionality to Desktop, Console and Web applications in minutes.

IronOCR's Unique Features:

  • Pure .Net OCR API
  • All OCR tasks run locally (no SAAS)
  • 125 languages
  • Barcode & QR Code reading
  • Corrects low quality, noisy and distorted scans
  • Performance tuned above and beyond any other known build of Tesseract OCR.
  • Reads PDFs
  • Can export searchable PDF documents from OCR
  • Reads multi-page TIFFs
  • Can save any OCR Scan to a searchable PDF document or XHTML

Data output options include: Plain Text, Barcode Data and an OCR Result class containing paragraphs, lines, words, and characters.

Language Support:

125 Languages including: Arabic, Chinese, English, Finnish, French, German, Hebrew, Italian, Japanese, Korean, Portuguese, Russian, Spanish...

Custom language packs can also be created.

Get Started

Quickstart: https://ironsoftware.com/csharp/ocr/ Install With NuGet: https://www.nuget.org/packages/IronOcr/

Compatibility

IronOcr provides Tesseract OCR on Mac, Windows, Linux, Azure and Docker for:

  • .Net Framework 4.0 +
  • .Net Standard 2.0 +
  • .Net Core 2.0 +
  • .Net 5
  • Mono for MacOS and Linux
  • Xamarin for MacOS

C# Code Example

using IronOcr;

var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.English;

using (var Input = new OcrInput("image.png"))
{
    // Input.Deskew();  // use if image not straight
    // Input.DeNoise(); // use if image contains digital noise
    var Result = Ocr.Read(Input);
    Console.WriteLine(Result.Text);
}

Further Documentation