1. IronOCR
2. How-Tos
3. Read Multiple Languages

How to use Multiple Languages with Tesseract

by Chipego Kalinda

In the realm of Optical Character Recognition (OCR) technology, IronOCR is a well-regarded tool known for its ability to extract text from various languages and scripts. We use the Tesseract Engine to provide a reliable and easy-to-use OCR tool.

In this article, we'll how IronOCR effectively handles text in multiple languages, thanks to Tesseract. Whether you're an experienced developer looking for a reliable multilingual OCR solution or simply curious about how it all works, this article will help you understand IronOCR and its Tesseract engine, shedding light on the capabilities of this invaluable tool

Install with NuGet

Install-Package IronOcr

nuget.org/packages/IronOcr/

or

Download DLL

Download DLL

Manually install into your project

Install with NuGet

Install-Package IronOcr

nuget.org/packages/IronOcr/

or

Download DLL

Download DLL

Manually install into your project

Start using IronPDF in your project today with a free trial.

First Step:

Start for Free

Install with Nuget

Check out IronOCR on Nuget for quick installation and deployment. With over 8 million downloads, it's transforming OCR with C#.

nuget.org/packages/IronOcr/

Install-Package IronOcr

Download DLL

Consider installing the IronOCR DLL directly. Download and manually install it for your project or GAC form: IronOcr.zip

Manually install into your project

Download DLL

Read Multi-Language PDF Example

IronOcr provides about 125 language packs however only English is installed by default, the rest can be download from NuGet. You can have a look at all the available language packs here..

In the following example I will show you the code for using multiple languages in IronOcr to extract text from a PDF file.

:path=/static-assets/ocr/content-code-examples/how-to/ocr-multiple-languages-pdf-input.cs

using IronOcr;
using System;

// Instantiate IronTesseract
IronTesseract ocrTesseract = new IronTesseract();

// Set secondary language to Russian
ocrTesseract.AddSecondaryLanguage(OcrLanguage.Russian);

// Add PDF
using var pdfInput = new OcrPdfInput(@"example.pdf");
// Perform OCR
OcrResult result = ocrTesseract.Read(pdfInput);

// Output extracted text to console
Console.WriteLine(result.Text);

Imports IronOcr
Imports System

' Instantiate IronTesseract
Private ocrTesseract As New IronTesseract()

' Set secondary language to Russian
ocrTesseract.AddSecondaryLanguage(OcrLanguage.Russian)

' Add PDF
Dim pdfInput = New OcrPdfInput("example.pdf")
' Perform OCR
Dim result As OcrResult = ocrTesseract.Read(pdfInput)

' Output extracted text to console
Console.WriteLine(result.Text)

You can add any number of secondary languages using the AddSecondaryLanguage method. However, please note that this addition may affect speed and performance. The priority of the language depends on the order in which it is added, with the first added having higher priority.

Read Multi-Language Image Example

The primary language is set to English by default. To change the primary language, set the Language property to the desired language. Afterward, you can also add secondary languages.

:path=/static-assets/ocr/content-code-examples/how-to/ocr-multiple-languages-image-input.cs

using IronOcr;
using System;

// Instantiate IronTesseract
IronTesseract ocrTesseract = new IronTesseract();

// Set primary language to Hindi
ocrTesseract.Language = OcrLanguage.Russian;
ocrTesseract.AddSecondaryLanguage(OcrLanguage.Japanese);

// Add image
using var imageInput = new OcrImageInput(@"example.png");
// Perform OCR
OcrResult result = ocrTesseract.Read(imageInput);

// Output extracted text to console
Console.WriteLine(result.Text);

Imports IronOcr
Imports System

' Instantiate IronTesseract
Private ocrTesseract As New IronTesseract()

' Set primary language to Hindi
ocrTesseract.Language = OcrLanguage.Russian
ocrTesseract.AddSecondaryLanguage(OcrLanguage.Japanese)

' Add image
Dim imageInput = New OcrImageInput("example.png")
' Perform OCR
Dim result As OcrResult = ocrTesseract.Read(imageInput)

' Output extracted text to console
Console.WriteLine(result.Text)

If you do this right you can expect results like the ones below.

Conclusion

In brief, IronOCR, backed by the powerful Tesseract engine, excels at extracting text from documents in multiple languages. It's an indispensable tool for handling the complexities of reading text in many languages, offering developers and curious minds a versatile solution. Whether you're processing PDFs with text in various languages or working with multilingual content in images, IronOCR simplifies the task of recognizing and extracting text in multiple languages.

Chipego

Software Engineer

Chipego has a natural skill for listening that helps him to comprehend customer issues, and offer intelligent solutions. He joined the Iron Software team in 2023, after studying a Bachelor of Science in Information Technology. IronPDF and IronOCR are the two products Chipego has been focusing on, but his knowledge of all products is growing daily, as he finds new ways to support customers. He enjoys how collaborative life is at Iron Software, with team members from across the company bringing their varied experience to contribute to effective, innovative solutions. When Chipego is away from his desk, he can often be found enjoying a good book or playing football.