How to Generate a QR Code Using C# with IronBarcode

This tutorial provides a comprehensive guide on generating QR codes using C# with the Iron Barcode library, which is free for development purposes. Follow these steps to efficiently create and customize QR codes for your specific needs.

Step 1: Install the Iron Barcode Package

Ensure you have the Iron Barcode library installed in your project. You can install it via the Package Manager Console with the following command:

Install-Package IronQR

Step 2: Using IronBarcode Namespace

Navigate to your Program.cs file and include the using IronBarCode; namespace at the top of your file:

using IronBarCode;

using IronBarCode;

Imports IronBarCode

Step 3: Generate a QR Code

To convert your desired text into a QR code, use the QRCodeWriter.CreateQrCode function. This function allows you to generate a QR code that you can then save and manipulate in a variety of ways.

Example Code to Create a QR Code

class Program
{
    static void Main()
    {
        // Define the content for the QR code
        string qrContent = "https://example.com";

        // Create a QR code with default size
        var qrCode = QRCodeWriter.CreateQrCode(qrContent);

        // Save the QR code in different formats
        qrCode.SaveAsPng("QRCode.png");
        qrCode.SaveAsJpeg("QRCode.jpeg");
        qrCode.SaveAsPdf("QRCode.pdf");

        // Output message
        Console.WriteLine("QR codes have been generated and saved in various formats.");
    }
}

class Program
{
    static void Main()
    {
        // Define the content for the QR code
        string qrContent = "https://example.com";

        // Create a QR code with default size
        var qrCode = QRCodeWriter.CreateQrCode(qrContent);

        // Save the QR code in different formats
        qrCode.SaveAsPng("QRCode.png");
        qrCode.SaveAsJpeg("QRCode.jpeg");
        qrCode.SaveAsPdf("QRCode.pdf");

        // Output message
        Console.WriteLine("QR codes have been generated and saved in various formats.");
    }
}

Friend Class Program
	Shared Sub Main()
		' Define the content for the QR code
		Dim qrContent As String = "https://example.com"

		' Create a QR code with default size
		Dim qrCode = QRCodeWriter.CreateQrCode(qrContent)

		' Save the QR code in different formats
		qrCode.SaveAsPng("QRCode.png")
		qrCode.SaveAsJpeg("QRCode.jpeg")
		qrCode.SaveAsPdf("QRCode.pdf")

		' Output message
		Console.WriteLine("QR codes have been generated and saved in various formats.")
	End Sub
End Class

Step 4: Adjust QR Code Size

To adjust the QR code size, provide your preferred dimensions as a second argument in the CreateQrCode function:

// Create a QR code with custom width and height
var qrCodeCustomSize = QRCodeWriter.CreateQrCode(qrContent, 500);

// Create a QR code with custom width and height
var qrCodeCustomSize = QRCodeWriter.CreateQrCode(qrContent, 500);

' Create a QR code with custom width and height
Dim qrCodeCustomSize = QRCodeWriter.CreateQrCode(qrContent, 500)

Step 5: Adding Annotations

Enhance your QR code by adding text annotations:

// Add text below the QR code
qrCode.AddBarcodeValueTextBelowBarcode();

// Add custom annotation text above the QR code
qrCode.AddAnnotationTextAboveBarcode("Scan the QR code");

// Add text below the QR code
qrCode.AddBarcodeValueTextBelowBarcode();

// Add custom annotation text above the QR code
qrCode.AddAnnotationTextAboveBarcode("Scan the QR code");

' Add text below the QR code
qrCode.AddBarcodeValueTextBelowBarcode()

' Add custom annotation text above the QR code
qrCode.AddAnnotationTextAboveBarcode("Scan the QR code")

Step 6: Incorporate Logos into QR Codes

You can customize your QR code by incorporating a logo:

// Path to the logo file
string logoPath = "logo.png";

// Create a QR code with a logo embedded
var qrCodeWithLogo = QRCodeWriter.CreateQrCodeWithLogo(qrContent, logoPath, 200);

// Save the QR code with a logo
qrCodeWithLogo.SaveAsPng("QRCodeWithLogo.png");

// Path to the logo file
string logoPath = "logo.png";

// Create a QR code with a logo embedded
var qrCodeWithLogo = QRCodeWriter.CreateQrCodeWithLogo(qrContent, logoPath, 200);

// Save the QR code with a logo
qrCodeWithLogo.SaveAsPng("QRCodeWithLogo.png");

' Path to the logo file
Dim logoPath As String = "logo.png"

' Create a QR code with a logo embedded
Dim qrCodeWithLogo = QRCodeWriter.CreateQrCodeWithLogo(qrContent, logoPath, 200)

' Save the QR code with a logo
qrCodeWithLogo.SaveAsPng("QRCodeWithLogo.png")

Conclusion

After following these steps, you can view the generated QR code, complete with annotations and a logo. This step-by-step guide ensures you can efficiently create and customize QR codes according to your specific requirements.

Further Reading: How to Generate a QR Code Using C# with IronBarcode