The C# OCR Library

Images to Text with OCR See All 24 Code Examples

using IronOcr;

var ocr = new IronTesseract();

using (var input = new OcrInput())
{
    input.AddImage("attachment.png");
    input.AddPdf("report.pdf");

    OcrResult result = ocr.Read(input);
    string text = result.Text;
}

Install-Package IronOcr

Explore the code, install IronOCR with NuGet

Cross Platform Support

Designed for C#, F#, & VB.NET running on .NET 7, 6, 5, Core, Standard, or Framework

IronOCR Release Version 2023.9

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The C# OCR Library

A C# OCR Library that prioritizes accuracy, ease of use, and speed. Licenses from $749.

IronOCR is the leading C# OCR library for reading text from images and PDFs. Its user friendly API allows developers to have OCR up and running in their .NET projects in minutes.

Tesseract 5 OCR in the language you need. We support 127+.

IronOCR Release Version 2023.9

Features & Upgrades

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Compatibility

.NET Languages:

C#, VB.NET, F#

Platforms:

App types:

Console, Web, & Desktop

Operating Systems:

IDEs

Certification

Microsoft Authenticode

OCR Engine

Underlying OCR Engine

Tesseract 5 (Custom for .NET)

International Languages

Text and Barcode Reading

Specialist Documents

Concurrency

Computer Vision:

Find text with trained models

OCR Input

Read from Many Formats:

Images (jpg, png, gif, tiff, bmp)
Multi-Page/Frame (tiff, gif)
System.Drawing Objects
Streams
PDFs (optimized target DPI)

Filters:

Filter Wizard (Find best filter combination)
Image Correction (Sharpen, Enhance Resolution, Denoise, Dilate, Erode)
Fix Image Orientation (Rotate, Deskew, Scale)
Fix Image Colors (Binarize, Grayscale, Invert, ReplaceColor, SelectTextColor)

Apply a Crop Region:

CropRectangle

OCR Result

Simple Data Output:

Structured Data Output:

Export Documents:

Highlight Text and Save:

Characters, words, lines, and paragraphs

Status and Analytics:

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