Tonga OCR in C# and .NET

Updated: April 23, 2026

IronOCR is a C# software component that allows .NET developers to read text from images and PDF documents in 126 languages, including Tonga. It is an advanced fork of Tesseract, tailored exclusively for .NET developers, and regularly outperforms other Tesseract engines for both speed and accuracy.

Contents of IronOcr.Languages.Tonga

This package contains three OCR language models specifically for Tonga:

Tonga
TongaBest
TongaFast

Download

Tonga Language Pack [faka Tonga]

Download as a Zip file.
Install with NuGet.

Installation

To start using the Tonga OCR capabilities, install the Tonga OCR package into your .NET project using the following NuGet command:

PM > Install-Package IronOcr.Languages.Tonga

Install-Package IronOcr.Languages.Tonga

Code Example

The following C# code example demonstrates how to read Tonga text from an image or PDF document using IronOCR.

// Include the necessary IronOcr namespace
using IronOcr;

class TongaOcrExample
{
    static void Main()
    {
        // Initialize the IronTesseract OCR engine
        var Ocr = new IronTesseract();
        
        // Set the OCR engine to use the Tonga language pack
        Ocr.Language = OcrLanguage.Tonga;
        
        // Load the input image or PDF into OcrInput
        using (var Input = new OcrInput(@"images\Tonga.png"))
        {
            // Perform OCR to read the text from the image
            var Result = Ocr.Read(Input);
            
            // Retrieve the full text recognition result
            var AllText = Result.Text;

            // Output the result or process further as needed
            System.Console.WriteLine(AllText);
        }
    }
}

// Include the necessary IronOcr namespace
using IronOcr;

class TongaOcrExample
{
    static void Main()
    {
        // Initialize the IronTesseract OCR engine
        var Ocr = new IronTesseract();
        
        // Set the OCR engine to use the Tonga language pack
        Ocr.Language = OcrLanguage.Tonga;
        
        // Load the input image or PDF into OcrInput
        using (var Input = new OcrInput(@"images\Tonga.png"))
        {
            // Perform OCR to read the text from the image
            var Result = Ocr.Read(Input);
            
            // Retrieve the full text recognition result
            var AllText = Result.Text;

            // Output the result or process further as needed
            System.Console.WriteLine(AllText);
        }
    }
}

' Include the necessary IronOcr namespace
Imports IronOcr

Class TongaOcrExample
    Shared Sub Main()
        ' Initialize the IronTesseract OCR engine
        Dim Ocr As New IronTesseract()
        
        ' Set the OCR engine to use the Tonga language pack
        Ocr.Language = OcrLanguage.Tonga
        
        ' Load the input image or PDF into OcrInput
        Using Input As New OcrInput("images\Tonga.png")
            ' Perform OCR to read the text from the image
            Dim Result = Ocr.Read(Input)
            
            ' Retrieve the full text recognition result
            Dim AllText = Result.Text

            ' Output the result or process further as needed
            System.Console.WriteLine(AllText)
        End Using
    End Sub
End Class

' Include the necessary IronOcr namespace
Imports IronOcr

Class TongaOcrExample
    Shared Sub Main()
        ' Initialize the IronTesseract OCR engine
        Dim Ocr As New IronTesseract()
        
        ' Set the OCR engine to use the Tonga language pack
        Ocr.Language = OcrLanguage.Tonga
        
        ' Load the input image or PDF into OcrInput
        Using Input As New OcrInput("images\Tonga.png")
            ' Perform OCR to read the text from the image
            Dim Result = Ocr.Read(Input)
            
            ' Retrieve the full text recognition result
            Dim AllText = Result.Text

            ' Output the result or process further as needed
            System.Console.WriteLine(AllText)
        End Using
    End Sub
End Class

This code example demonstrates initializing the IronTesseract OCR engine and setting it to use the Tonga language.
We load an image from the specified path into an OcrInput object.
The Ocr.Read() method processes the input to extract text, and then we retrieve the recognized text via the Result.Text property.
Finally, the extracted text can be output or processed as needed in the application.

Curtis Chau

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Technical Writer

Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.

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