How does the ASP.NET Core framework handle barcode to image conversion?

Syncfusion Essential® PDF is a .NET PDF library used to create, read, and edit PDF documents. Using this library, you can create a barcode and you can convert the barcode to image in the ASP.NET Core platform.

Steps to convert the barcode to image in the ASP.NET Core platform:

1. Create a new ASP.NET Core Web Application project.

2. Select the Web Application pattern (Model-View-Controller) for the project.

3. Install the Syncfusion.Pdf.Imaging.Net.Core NuGet package as a reference to your .NET Core application from nuget.org.

4. Add a new button in the Index.cshtml as shown below.

CSHTML

@{Html.BeginForm("CreateDocument", "Home", FormMethod.Get);
    {
        <div>
            <input type="submit" value="Create Document" style="width:150px;height:27px" />
        </div>
    }
    Html.EndForm();
} 

5. A default controller with a name HomeController.cs is added to the ASP.NET Core project. Include the following namespaces in that HomeController.cs file.

C#

using Syncfusion.Pdf.Barcode;
using Syncfusion.Pdf.Graphics; 
using Syncfusion.Drawing;

VB.NET

Imports Syncfusion.Pdf.Barcode
Imports Syncfusion.Pdf.Graphics
Imports Syncfusion.Drawing

6. Add a new action method CreateDocument in the HomeController.cs and include the following code snippet to convert the barcode to image and download it.

C#

//Drawing QR Barcode  
PdfQRBarcode barcode = new PdfQRBarcode();
//Set an error correction level
barcode.ErrorCorrectionLevel = PdfErrorCorrectionLevel.Medium;
//Set XDimension 
barcode.XDimension = 3;
//Set text 
barcode.Text = "http://www.syncfusion.com";
//Convert to image
Stream barcodeImage = barcode.ToImage(new SizeF(300,300));
//Download the PDF document in the browser
FileStreamResult fileStreamResult = new FileStreamResult(barcodeImage, "application/jpg");
fileStreamResult.FileDownloadName = "Barcode.jpg";
return fileStreamResult;

VB.NET

'Drawing QR Barcode  
Dim barcode As PdfQRBarcode = New PdfQRBarcode()
'Set an error correction level  
barcode.ErrorCorrectionLevel = PdfErrorCorrectionLevel.Medium
'Set XDimension 
barcode.XDimension = 3
'Set text 
barcode.Text = "http://www.syncfusion.com"
'Convert to image
Dim barcodeImage As Stream = barcode.ToImage(New SizeF(300, 300))

'Download the PDF document in the browser
Dim fileStreamResult As FileStreamResult = New FileStreamResult(barcodeImage, "application/jpg")
fileStreamResult.FileDownloadName = "Barcode.jpg"
Return fileStreamResult

A complete working sample can be downloaded from BarcodeToImage.zip.

By executing the program, you will get the image as follows.

Conclusion:

I hope you enjoyed learning about how does the ASP.NET Core framework handle barcode to image conversion.

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