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IronOCR Library for C#
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IronOCR
IronOCR
Code Examples
  1. IronOCR
  2. Code Examples
  3. Iron Tesseract OCR Config
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IronOCR
OCR in 1 line of code
PDF OCR Text Extraction
OCR with Barcode & QR Reading
125 International OCR Languages
Fixing Low Quality Scans & Images
Fast OCR Configuration
OCR Image Optimization Filters
OcrResult Class
Create Searchable PDFs by OCR
Tesseract 5 for .NET
Tesseract 4 for .NET
Tesseract 3 Legacy for .NET
Tesseract Detailed Configuration
OcrInput Class
OCR a Region of an Image
TIFF to Serchable PDF Converter
Image Resolution Optimization (DPI)
MultiThreaded Tesseract OCR
OCR for MultiPage TIFF Files
Make any PDF have Searchable, Copyable Text
Using Custom Tesseract Language Files
Multiple Languages for 1 Document
Exporting Images of OCR Elements

Tesseract Detailed Configuration

 var Ocr = new IronTesseract();

Ocr.Language = OcrLanguage.English;
Ocr.Configuration.ReadBarCodes = false;
Ocr.Configuration.TesseractVersion = TesseractVersion.Tesseract5;
Ocr.Configuration.EngineMode = TesseractEngineMode.TesseractAndLstm;
Ocr.Configuration.BlackListCharacters = "`ë|^";
Ocr.Configuration.RenderSearchablePdfsAndHocr = true;
Ocr.Configuration.PageSegmentationMode = TesseractPageSegmentationMode.AutoOsd;
Ocr.Configuration.TesseractVariables["tessedit_parallelize"] = false;

using (var Input = new OcrInput(@"images\image.png"))
{
    var Result = Ocr.Read(Input);
    Console.WriteLine(Result.Text);
}	
Dim Ocr = New IronTesseract()

Ocr.Language = OcrLanguage.English
Ocr.Configuration.ReadBarCodes = False
Ocr.Configuration.TesseractVersion = TesseractVersion.Tesseract5
Ocr.Configuration.EngineMode = TesseractEngineMode.TesseractAndLstm
Ocr.Configuration.BlackListCharacters = "`ë|^"
Ocr.Configuration.RenderSearchablePdfsAndHocr = True
Ocr.Configuration.PageSegmentationMode = TesseractPageSegmentationMode.AutoOsd
Ocr.Configuration.TesseractVariables("tessedit_parallelize") = False

Using Input = New OcrInput("images\image.png")
	Dim Result = Ocr.Read(Input)
	Console.WriteLine(Result.Text)
End Using
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Tesseract Detailed Configuration

The IronTesseract.Configuration object provides access to the underlying Tesseract API in C# / .NET to configure setup for advanced users.

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C# Nuget Library for PDF
Install with NuGet
Version 2020.12.2
Install-Package IronOcr
nuget.org/packages/IronOcr/
  1. In Solution Explorer, right-click References, Manage NuGet Packages
  2. Select Browse and search "IronOCR"
  3. Select the package and install
C# PDF DLL
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Version 2020.12.2
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Manually install into your project
  1. Download and unzip IronOCR to a location such as ~/Libs within your Solution directory
  2. In Visual Studio Solution Explorer, right click References. Select Browse, "IronOCR.dll"
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