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Explore many other features from IronOCR – the ideal library for all your OCR needs!

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File Type Supports

1

Multi-Page/Frame TIFFs & GIFs

Effortlessly process multi-page documents stored in TIFF and GIF formats. IronOcr reads all pages or frames in a single operation, saving you the complexity of splitting files manually.

Learn how to:Read Multi-Frame/Page GIFs and TIFFs
using IronOcr;

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

// Import TIFF/TIF
using var imageInput = new OcrImageInput("sample.tiff");

// Perform OCR
OcrResult ocrResult = ocrTesseract.Read(imageInput);
C#
2

PDF / PDF Stream

Accurately extract text directly from PDF files or memory streams, handling both native and scanned (image-based) PDFs with ease.

Learn how to:Read a PDF in .NET C#
using IronOcr;

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

// Add PDF
using var pdfInput = new OcrPdfInput("sample.pdf");

// Perform OCR
OcrResult ocrResult = ocrTesseract.Read(pdfInput);
C#
3

Images (jpg, png, bmp)

IronOCR supports all standard image formats, such as JPG, PNG, and BMP. Simply provide the file path, and IronOCR will handle the rest.

Learn how to:Read Images in .NET C#
using IronOcr;

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

// Add image
using var imageInput = new OcrImageInput("Potter.png");

// Perform OCR
OcrResult ocrResult = ocrTesseract.Read(imageInput);
C#

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Performance Booster

1

Multithreaded Tesseract OCR

Build highly scalable, responsive applications with full support for concurrent processing. Safely process multiple documents simultaneously in different threads for high-performance, server-side deployments.

Learn how to:Multithreaded Tesseract OCR in C#
using IronOcr;

var ocrTesseract = new IronTesseract();
using var ocrInput = new OcrInput();
ocrInput.LoadPdf("sample.pdf");

// Image processing is automatically multi-threaded
ocrInput.Deskew();

// OCR reading is automatically multi-threaded too
var ocrResult = ocrTesseract.Read(ocrInput);
C#
2

Abort Token

Maintain control over long-running OCR tasks. Use an abort token to gracefully suspend or cancel a process, which is useful for managing resources or implementing user-cancellable operations.

Learn how to:C# Tesseract Abort Token
using IronOcr;
using System.Threading;

// Opens a Large PDF which may need to be cancelled early
IronTesseract ocrTesseract = new IronTesseract() { Language = OcrLanguage.English };
using var ocrInput = new OcrInput();
ocrInput.LoadPdf("sample.pdf");

// Starts a read on the PDF using IronOCR
OcrReadTask ocrRead = ocrTesseract.ReadAsync(ocrInput);
Thread.Sleep(1000); // Time passes...

// Cancellation Example:
ocrRead.Cancel();
ocrRead.Wait();
C#
3

Timeouts

Prevent your application from hanging on difficult or corrupt files. Set a specific timeout duration for any OCR process to ensure better resource management and system stability.

Learn how to:C# Tesseract Timeouts
using IronOcr;

int cancel_time = 1000;

// Opens a Large PDF which may need to be cancelled early
IronTesseract ocrTesseract = new IronTesseract() { Language = OcrLanguage.English };
var ocrInput = new OcrInput();
ocrInput.LoadPdf("large-report.pdf");

// Starts a read on the PDF using IronOCR with specified cancel time
OcrReadTask ocrRead = ocrTesseract.ReadAsync(ocrInput, cancel_time);
C#
4

OCR Process Tracking

Monitor the real-time progress of an OCR operation from 0% to 100%. This allows you to provide feedback to users with a progress bar or better estimate completion times for large jobs.

Learn how to:use Progress Tracking in .NET C#
using IronOcr;

var ocrTesseract = new IronTesseract();

// Subscribe to OcrProgress event
ocrTesseract.OcrProgress += (_, ocrProgressEventsArgs) =>
{
    Console.WriteLine("Progress(%) | Duration");
    Console.WriteLine("    " + ocrProgressEventsArgs.ProgressPercent + "%     | " + ocrProgressEventsArgs.Duration.TotalSeconds + "s");
};
using var input = new OcrInput();
input.LoadPdf("Experiences-in-Biodiversity-Research-A-Field-Course.pdf");
// Progress events will fire during the read operation
var result = ocrTesseract.Read(input);
C#
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