Add File Attachment to PDF - VB.NET
PDF SDK sample in VB.NET demonstrating ‘Add File Attachment to PDF’
Program.vb
Imports Bytescout.PDF
''' <summary>
''' This example demonstrates how to attach a file to PDF document.
''' </summary>
Class Program
    Shared Sub Main()
        ' Create new document
        Dim pdfDocument = New Document()
        pdfDocument.RegistrationName = "demo"
		pdfDocument.RegistrationKey = "demo"
        ' If you wish to load an existing document uncomment the line below And comment the Add page section instead
        ' pdfDocument.Load(".\existing_document.pdf")
        ' Add page
        Dim page = New Page(PaperFormat.A4)
        pdfDocument.Pages.Add(page)
        ' Attach file
        Dim fileAttachment = New FileAttachmentAnnotation("sample_attachment.txt", 20, 20, 20, 20)
        fileAttachment.Icon = FileAttachmentAnnotationIcon.Paperclip
        page.Annotations.Add(fileAttachment)
        ' Instruct PDF viewer application to show attachments pane on startup
        pdfDocument.PageMode = PageMode.Attachment
        ' Save document to file
        pdfDocument.Save("result.pdf")
        ' Cleanup 
		pdfDocument.Dispose()
        ' Open document in default PDF viewer app
        Process.Start("result.pdf")
    End Sub
End Class
sample_attachment.txt
sample_attachment.txt
1234567890
abcdefghijklmnopqrstuvwxyz
Resources.Designer.vb
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