Working with Arabic Numerals in IronOCR

Curtis Chau

Updated: July 6, 2026

The Arabic, Persian and Urdu Language Packs Do Not Recognize Arabic Numerals?

This is a known issue with the Tesseract language packs.

The following language pack may help to address this issue with Arabic numerals: Shreeshrii's Tessdata Arabic

This can then be used with the IronOCR feature to load custom language packs: IronOCR Custom Language Example

using IronOcr;

class ArabicNumeralOCR
{
    static void Main(string[] args)
    {
        // Initialize a new instance of IronTesseract for OCR
        var Ocr = new IronTesseract();
        
        // Load the custom Tesseract language file for better numeral recognition
        Ocr.UseCustomTesseractLanguageFile("custom_tesseract_files/custom.traineddata");
        
        // Specify the image input for OCR processing
        using (var Input = new OcrInput())
        {
            // Load the image to process
            Input.LoadImage(@"images\image.png");

            // Execute the OCR process on the input image
            var Result = Ocr.Read(Input);
            
            // Output the recognized text
            Console.WriteLine(Result.Text);
        }
    }
}

using IronOcr;

class ArabicNumeralOCR
{
    static void Main(string[] args)
    {
        // Initialize a new instance of IronTesseract for OCR
        var Ocr = new IronTesseract();
        
        // Load the custom Tesseract language file for better numeral recognition
        Ocr.UseCustomTesseractLanguageFile("custom_tesseract_files/custom.traineddata");
        
        // Specify the image input for OCR processing
        using (var Input = new OcrInput())
        {
            // Load the image to process
            Input.LoadImage(@"images\image.png");

            // Execute the OCR process on the input image
            var Result = Ocr.Read(Input);
            
            // Output the recognized text
            Console.WriteLine(Result.Text);
        }
    }
}

Note: This C# example demonstrates how to use a custom Tesseract language file in IronOCR to improve the recognition of Arabic numerals within images. It assumes you have already downloaded the appropriate language pack and placed it in the specified location. Make sure to install IronOCR and add necessary error handling in the production code.

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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