Cross Platform Support

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

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IronOCR Release Version 2023.3

Features & Upgrades

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 125+.

IronOCR Release Version 2023.3

Features & Upgrades


.NET Languages:

  • C#
  • VB.NET
  • F#


  • .NET 7, 6 & 5
  • .NET Core 3x & 2x
  • .NET Standard 2
  • .NET Framework 4.6.2+

App Types:

  • Console, Web, & Desktop


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


  • Microsoft Visual Studio
  • Jetbrains ReSharper & Rider

OCR Engine

Underlying OCR Engine:

  • Tesseract 5 (Custom for .NET)

International Languages:

  • 125 Languages
  • High, Medium, and Fast Quality
  • Custom fonts & Languages

Text and Barcode Reading:

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

Specialist Documents:

  • Receipts
  • Checks (Cheques)
  • Invoices


  • Single and Multithreading
  • Async Support
  • Suspend current thread
  • Cancel OCR Reading

Computer Vision:

  • Advanced Computer Vision finds text with our trained models

OCR Input

Read from Many Formats:

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

Image Correction Filters:

  • Sharpen
  • EnhanceResolution
  • Denoise
  • DeepCleanBackgroundNoise
  • Dilate and Erode

Fix Image Orientation:

  • Crop Rectangles
  • Rotate
  • Deskew
  • Scale

Fix Image Colors:

  • Binarize
  • Grayscale
  • Invert Colors
  • Replace Colors

Apply a Crop Region:

  • Use a CropRectangle to improve reading

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
  • Page or Text Element as image
  • Barcode or QR Code as Image

Highlight Text and Save:

  • Highlight characters, words, lines, or paragraphs and save

Status and Analytics:

  • OCR Progress Tracking
  • Result Confidence

Trusted by Over 2 Million Engineers Worldwide

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World-Class Engineering,
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Ready to get started? Version: 2023.3 just released

Start for Free Total downloads: 715,792
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