How to align barcode text in a PDF using C# and VB.NET
Syncfusion Essential PDF is a .NET PDF library used to create, read, and edit PDF documents. Using this library, you can align barcode text in the PDF document using C# and VB.NET.
Steps to align barcode text in PDF programmatically:
- Create a new C# Windows Forms application project.
- Install the Syncfusion.Pdf.WinForms NuGet package as reference to your .NET Framework application from NuGet.org.
- Include the following namespaces in the Form1.cs file.
C#
using Syncfusion.Pdf; using Syncfusion.Pdf.Barcode; using Syncfusion.Pdf.Graphics; using System.Drawing;
VB.NET
Imports Syncfusion.Pdf Imports Syncfusion.Pdf.Barcode Imports Syncfusion.Pdf.Graphics Imports System.Drawing
- Use the following code snippet in the click event of the button to align barcode text in the PDF document.
C#
//Creating a new PDF document
PdfDocument document = new PdfDocument();
document.PageSettings.SetMargins(10f);
//Adding new page to the PDF document
PdfPage page = document.Pages.Add();
//Barcode size
SizeF size = new SizeF(250, 100);
//Create a new instance for Code39 barcode
PdfCode39Barcode code39 = new PdfCode39Barcode();
code39.Text = "CODE39$";
//Set center alignment to the barcode text
code39.TextAlignment = PdfBarcodeTextAlignment.Center;
//Setting size of the barcode
code39.Size = size;
//Draw barcode into the PDF page
code39.Draw(page, new PointF(30, 30));
//Set left alignment to the barcode text
code39.TextAlignment = PdfBarcodeTextAlignment.Left;
//Draw barcode into the PDF page
code39.Draw(page, new PointF(30, 150));
//Set right alignment to the barcode text
code39.TextAlignment = PdfBarcodeTextAlignment.Right;
//Draw barcode into the PDF page
code39.Draw(page, new PointF(30, 270));
//Save and close the document
document.Save("BarcodeTextAlignment.pdf");
document.Close(true);
VB.NET
'Creating a new PDF document
Dim document As New PdfDocument()
document.PageSettings.SetMargins(10.0F)
'Adding new page to the PDF document
Dim page As PdfPage = document.Pages.Add()
'Barcode size
Dim size As New SizeF(250, 100)
'Create a new instance for Code39 barcode
Dim code39 As New PdfCode39Barcode()
code39.Text = "CODE39$"
'Set center alignment to the barcode text
code39.TextAlignment = PdfBarcodeTextAlignment.Center
'Setting size of the barcode
code39.Size = size
'Draw barcode into the PDF page
code39.Draw(page, New PointF(30, 30))
'Set left alignment to the barcode text
code39.TextAlignment = PdfBarcodeTextAlignment.Left
'Draw barcode into the PDF page
code39.Draw(page, New PointF(30, 150))
'Set right alignment to the barcode text
code39.TextAlignment = PdfBarcodeTextAlignment.Right
'Draw barcode into the PDF page
code39.Draw(page, New PointF(30, 270))
'Save and close the document
document.Save("BarcodeTextAlignment.pdf")
document.Close(True)
A complete working sample can be downloaded from AlignBarcodeTestInPDF.zip.
By executing the program, you will get the PDF document as follows. 
Take a moment to peruse the documentation for working with barcode, where you will find other options like drawing one and two dimensional barcodes in the PDF document, setting location and size to the barcode, and customizing the barcode appearance.
Refer here to explore the rich set of Syncfusion Essential PDF features.
An online sample link to drawing one and two dimensional barcode in PDF document.
Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.
