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;
}

Imports IronOcr

Private ocr = New IronTesseract()

Using input = New OcrInput()
	input.AddImage("attachment.png")
	input.AddPdf("report.pdf")

	Dim result As OcrResult = ocr.Read(input)
	Dim text As String = result.Text
End Using

Install-Package IronOcr

Explore the code, install IronOCR with NuGet

Cross Platform Support

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

IronOCR Release Version 2022.11

Features & Upgrades

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The C# OCR Library

Tesseract 5 OCR in the language you need. We support 127+. Licenses from $749.

A C# Library that prioritizes accuracy, ease of use, and speed.
Version: 2022.11 available now.

IronOCR Release Version 2022.11

Features & Upgrades

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Compatibility

.NET Languages:

C#
VB.NET
F#

Platforms:

.NET 6 & 5
.NET Core 3x & 2x
.NET Standard 2
.NET Framework 4x

App Types:

Console, Web, & Desktop

OS:

Microsoft Windows
macOS
Linux (Debian, CentOS, Ubuntu)
Docker (Windows, Linux, Azure)
Azure (VPS, Webapps, Websites, Functions)
AWS (EC2, Lambda)

IDEs:

Microsoft Visual Studio
Jetbrains ReSharper & Rider

OCR Engine

Underlying OCR Engine:

Tesseract 5 (Custom .NET Engine)

International Languages:

127 Languages
High, Medium, and Fast Quality
Custom Languages

Text and Barcode Reading:

Text and Numbers
Multiple Languages at once
Barcodes (Over 20 Formats)
QR Codes

Specialist Documents:

Receipts
Checks (Cheques)
Invoices

Concurrency:

Single and Multithreading
Async Support

OCR Input

Read from Many Formats:

Images (jpg, png, gif, tiff, bmp)
Multi Page and Frame TIFF and GIF
System.Drawing Objects
Streams
PDFs

Low Quality Input Correction:

Sharpen
EnhanceResolution
Denoise
DeepCleanBackgroundNoise
Dilate and Erode

Fix Image Orientation:

Crop Rectangles
Rotate
Deskew
Scale

Fix Image Colors:

Binarize
Grayscale
Invert Colors
Replace Colors

Advanced Computer Vision:

Use Computer Vision to find text based on our advanced trained models

OCR Result

Simple Data Output:

.NET Text Strings
Barcode and QR Data
Images

Structured Data Output:

Pages
Blocks
Paragraphs
Lines
Words
Characters

Export Documents:

Searchable PDFs
hOCR Export
HTML Export
Image of any Page or Text Element
Barcode or QR Code as Image

Status and Analytics:

OCR Progress Tracking
Result Confidence

Trusted by Over 2 Million Engineers Worldwide

World-Class Engineering,
24-Hour Support

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