How to add attachment to 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 add attachment to a PDF using C# and VB.NET. Attachments contain any kind of files with detailed information.
Steps to add attachment to the PDF programmatically:
- Create a new C# console application project.
- Install the Syncfusion.Pdf.WinForms NuGet package as reference to your .NET Framework application from NuGet.org.
- Include the following namespace in the Program.cs file.
C#
using Syncfusion.Pdf; using Syncfusion.Pdf.Interactive; using System;
VB.NET
Imports Syncfusion.Pdf Imports Syncfusion.Pdf.Interactive Imports System
- Use the following code snippet to add attachment to PDF document.
C#
//Creates a new PDF document PdfDocument document = new PdfDocument(); //Creates an attachment PdfAttachment attachment = new PdfAttachment("Input.txt"); attachment.ModificationDate = DateTime.Now; attachment.Description = "Input.txt"; attachment.MimeType = "application/txt"; //Adds the attachment to the document document.Attachments.Add(attachment); //Save the PDF document document.Save("Attachment.pdf"); //Close the PDF document document.Close(true); //This will open the PDF file so, the result will be seen in default PDF viewer Process.Start("Attachment.pdf");
VB.NET
'Creates a new PDF document Dim document As New PdfDocument() 'Creates an attachment Dim attachment As New PdfAttachment("Input.txt") attachment.ModificationDate = DateTime.Now attachment.Description = "Input.txt" attachment.MimeType = "application/txt" 'Adds the attachment to the document document.Attachments.Add(attachment) 'Save the PDF document document.Save("Attachment.pdf") 'Close the PDF document document.Close(True) 'This will open the PDF file so, the result will be seen in default PDF viewer Process.Start("Attachment.pdf")
A complete working sample can be downloaded from PDFAttachmentSample.zip.
By executing the program, you will get the PDF document as follows.
Take a moment to peruse the documentation, where you can find options like removing the attachment from an existing PDF, extracting and saving an attachment to the disk and other features like File Link Annotation, File Attachment Annotation, and hyperlink to PDF with code examples.
Refer here to explore the rich set of Syncfusion Essential PDF features.
An online sample link to attach files in PDF document.
Note:
Starting with v16.2.0.x, if you reference Syncfusion® assemblies from the trial setup or the NuGet feed, include a license key in your projects. Refer to the link to learn about generating and registering the Syncfusion® license key in your application to use the components without a trial message.
Conclusion:
I hope you enjoyed learning about how to add attachment to a PDF using C# and VB.NET.
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