The C# OCR Library

Go beyond basic OCR. Get an advanced ML engine for .NET 10 and preprocessing that reads scans, screenshots, and handwriting.

Read images, PDFs, and structured documents

125+ languages and filters for poor quality scans

Export structured data, text, hOCR, and searchable PDFs

Free 30-day trial, full features, no credit card

Images to Text with OCR See All 38 Code Examples

using IronOcr;

var ocr = new IronTesseract();

using var input = new OcrInput();
input.LoadImage("attachment.png");
input.LoadPdf("report.pdf");

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

Install-Package IronOcr

Next Step: Start Free Trial

Fully functional without watermarks

30-day trial - no credit card required

Next Step: Start Free Trial

Fully functional without watermarks

30-day trial - no credit card required

PM > Install-Package IronOcr

IronOCR

See what’s new:

Added SaveAsSearchablePdf() Support

Cross Platform Support

Designed for C#, F#, & VB.NET running on .NET 10, 9, 8, 7, 6, 5, Core, Standard, or Framework

.NET Languages:

C#, VB.NET, F#

App Types:

Console, Web, & Desktop

Platforms:

.NET 10, 9, 8, 7, 6 & 5
.NET Standard 2
.NET Framework 4.6.2+

Operating Systems:

Windows
macOs
Linux
Docker
Azure
AWS

IDEs:

Microsoft Visual Studio
Jetbrains ReSharper & Rider

Binary Certification

Microsoft Authenticode

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

IronOCR is the leading C# OCR library, offering superior text extraction from images and PDFs compared to Tesseract. Its user-friendly API enables developers to implement OCR in their .NET projects within minutes.

Get your free 30-day Trial Key instantly.

Your trial key should be in the email.
If it is not, please contact
support@ironsoftware.com

Tesseract OCR in the language you need. We support 125+.

View Full Features Set

Trusted by millions of engineers worldwide

Every time developers ask, it's a YES! from IronOCR

switch(faqQuestions)
{ 
    case "Can I deploy my application using the library to Linux, macOS, or Windows, including Docker containers?": return "YES";
    case "Can I render pixel-perfect PDFs from complex HTML5, CSS3, and JavaScript?": return "YES";
    case "Is the library thread-safe for use in highly concurrent, multi-threaded server applications and APIs?": return "YES";
    case "Can I set custom viewport dimensions and print media CSS to control responsive layouts?": return "YES";
    case "Is IronPDF compatible with Azure Functions?": return "YES";
    case "Can I permanently redact sensitive text and images from PDF documents?": return "YES";
    case "Can I generate a PDF from a URL that requires authentication via custom headers, cookies, or form logins?": return "YES";
    case "Can I access PDF DOM through ObjectModel property?": return "YES";
    case "Can I programmatically fill, read, and flatten interactive AcroForm?": return "YES";
    case "Does it support generating PDF/A and PDF/UA compliant documents for archiving and accessibility standards?": return "YES";
    case "Can I secure a document with 256-bit AES password encryption and set user permissions?": return "YES";
    case "Can I apply and verify digital signatures on a PDF using X.509 certificates?": return "YES";
    case "Can I test IronPDF in my live project for free now?": return "YES, click here to start your 30-day free trial";
}