The C# OCR Library

OCR for C# to scan and read images & PDFs
.NET OCR library with 127+ global language packs
Output as text, structured data, or searchable PDFs
Supports .NET 7, 6, 5, Core, Standard, Framework

Version 2023.8 released See what's new

Images to Text with OCRSee 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;
}

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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 Framewor

A C# OCR Library that prioritizes accuracy, ease of use, and speed.

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 125+.

IronOCR Release Version 2023.8

Features & Upgrades

See what's new

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:

IronOCR Roadmap

We developed IronOCR to fill a market need, and it's excelled as one of our leading products. Today we are continually shipping new feature requests, driven by community demand.

We actively work with Google's latest Tesseract technology to drive stability and high accuracy. This ensures our customers are benefiting from the cutting edge OCR reading engine.

Our monthly releases see IronOCR continually prove its worth, and drive our mission to help end users move the .NET language forward.

We know IronOCR is one of the top choices developers make¹. To cement IronOCR as the leading product of its kind we are applying the latest technology to improve image filters, computer vision and machine learning.

Our next epic will be to launch IronOCR for multiple programming languages.

¹Based on a customer survey conducted in June 2022.

August 2023

IronOCR v2023.8.34

Aug 1 2023

Version 2023.8.34