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Iron Barcode Library for C# .NET Iron Barcode Library for C# .NET
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  • Free NuGet Download Total downloads: 649,209
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C# QR Code Generator

  1. Generate QR Codes in VB .NET and C#
  2. Read and write Barcodes
Free NuGet Download Total downloads: 649,209 Free 30-Day Trial Key Total downloads: 649,209
Start for Free Total downloads: 649,209

Or download the DLL directly here

Examples

  • Barcode Quickstart
  • Imperfect Barcodes and Image Correction
  • Creating Barcodes Images
  • Barcode Styling & Annotation
  • Export Barcodes as HTML
See All 9 Code Examples
Barcode Quickstart See All 9 Code Examples
using IronBarCode;
using System.Drawing;

// Creating a barcode is as simple as:
var myBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8);

// And save our barcode as in image:
myBarcode.SaveAsImage("EAN8.jpeg");

Image myBarcodeImage = myBarcode.Image; // Can be used as Image
Bitmap myBarcodeBitmap = myBarcode.ToBitmap(); // Can be used as Bitmap

// Reading a barcode is easy with IronBarcode:
var resultFromFile = BarcodeReader.Read(@"file/barcode.png"); // From a file
var resultFromBitMap = BarcodeReader.Read(new Bitmap("barcode.bmp")); // From a bitmap
var resultFromImage = BarcodeReader.Read(Image.FromFile("barcode.jpg")); // From an image
var resultFromPdf = BarcodeReader.ReadPdf(@"file/mydocument.pdf"); // From PDF use ReadPdf

// After creating a barcode, we may choose to resize and save which is easily done with:
var myNewBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8);
myNewBarcode.ResizeTo(400, 100);
myNewBarcode.SaveAsImage("myBarcodeResized.jpeg");

// To set more options and optimization with your Barcode Reading,
// Please utilize the BarcodeReaderOptions paramter of read:
var myOptionsExample = new BarcodeReaderOptions
{
    // Choose a speed from: Faster, Balanced, Detailed, ExtremeDetail
    // There is a tradeoff in performance as more Detail is set
    Speed = ReadingSpeed.Balanced,

    // Reader will stop scanning once a barcode is found, unless set to true
    ExpectMultipleBarcodes = true,

    // By default, all barcode formats are scanned for.
    // Specifying one or more, performance will increase.
    ExpectBarcodeTypes = BarcodeEncoding.AllOneDimensional,

    // Utilizes multiple threads to reads barcodes from multiple images in parallel.
    Multithreaded = true,

    // Maximum threads for parallel. Default is 4
    MaxParallelThreads = 2,

    // The area of each image frame in which to scan for barcodes.
    // Will improve performance significantly and avoid unwanted results and avoid noisy parts of the image.
    CropArea = new Rectangle(),

    // Special Setting for Code39 Barcodes.
    // If a Code39 barcode is detected. Try to use extended mode for the full ASCII Character Set
    UseCode39ExtendedMode = true
};

// And, apply:
var results = BarcodeReader.Read("barcode.png", myOptionsExample);
Install-Package BarCode
Imperfect Barcodes and Image Correction See All 9 Code Examples
using IronBarCode;
using IronSoftware.Drawing;
using System.Linq;

// Choose which filters are to be applied (in order);
var filtersToApply = new ImageFilterCollection() {
    new SharpenFilter(),
    new InvertFilter(),
    new ContrastFilter(),
    new BrightnessFilter(),
    new AdaptiveThresholdFilter(),
    new BinaryThresholdFilter()
};

BarcodeReaderOptions myOptionsExample = new BarcodeReaderOptions()
{
    // Set chosen filters in BarcodeReaderOptions:
    ImageFilters = filtersToApply,

    // Other Barcode Reader Options:
    Speed = ReadingSpeed.Balanced,
    ExpectMultipleBarcodes = true,
};

// And, apply with a Read:
BarcodeResults results = BarcodeReader.Read("screenshot.png", myOptionsExample);

AnyBitmap[] filteredImages = results.FilterImages();

// Export file to disk
for (int i = 0 ; i < filteredImages.Count() ; i++)
    filteredImages[i].SaveAs($"{i}_barcode.png");

// Or
results.ExportFilterImagesToDisk("filter-result.jpg");
Install-Package BarCode
Creating Barcodes Images See All 9 Code Examples
using IronBarCode;
using System.Drawing;

/*** CREATING BARCODE IMAGES *
Install-Package BarCode
Barcode Styling & Annotation See All 9 Code Examples
using IronBarCode;
using System;
using System.Drawing;

/*** STYING GENERATED BARCODES  *
Install-Package BarCode
Export Barcodes as HTML See All 9 Code Examples
using IronBarCode;

/*** EXPORTING BARCODES AS HTML FILES OR TAGS *
Install-Package BarCode
Iron Barcode

Reading and Writing Barcodes & QR in C#...

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C# NuGet Library for PDF
Install with NuGet
Version: 2023.9
Install-Package BarCode
nuget.org/packages/BarCode/
  1. In Solution Explorer, right-click References, Manage NuGet Packages
  2. Select Browse and search "IronBarCode"
  3. Select the package and install
C# PDF DLL
Download DLL
Version: 2023.9
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Manually install into your project
  1. Download and unzip IronBarCode to a location such as ~/Libs within your Solution directory
  2. In Visual Studio Solution Explorer, right click References. Select Browse, "IronBarCode.dll"
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Want to deploy IronBarcode to a live project for FREE?
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Want to deploy IronBarcode to a live project for FREE?

What’s included?
30 days of fully-functional product
Test and share in a live environment
No restrictions in production
Get your free 30-day Trial Key instantly.
Thank you.
If you'd like to speak to our licensing team:

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No credit card required

Fully-functional product

Get 30 days of fully-functional product.
Have it up and running in minutes.

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Test in a live environment

Test and share in a live environment.
Works wherever you need it to.

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No watermarks

No watermarks in production.
No limits.

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ironbarcode_for_dotnet

Your Trial License Key has been emailed to you.

Install with NuGet
View Licensing

Licenses from $749. Have a question? Get in touch.

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IronBarcode for .NET

When you need to read, write, and style, QR & Barcodes, fast.

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When you need your PDF to look like HTML, fast.

Tesseract 5 OCR in the languages you need, We support 127+.

When you need to read, write, and style, QR & Barcodes, fast.

The Excel API you need, without the Office Interop hassle.

The power you need to scrape & output clean, structured data.

The complete .NET Suite for your office.

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