Read Form Values from W-9 form - VB.NET
PDF SDK sample in VB.NET demonstrating ‘Read Form Values from W-9 form’
Program.vb
Imports Bytescout.PDF
''' <summary>
''' This example demonstrates how to get PDF form values programmatically.
''' </summary>
Class Program
    Shared Sub Main()
        ' Load PDF form
        Dim pdfDocument = New Document("W-9_Filled.pdf")
        pdfDocument.RegistrationName = "demo"
        pdfDocument.RegistrationKey = "demo"
        ' Read from first page
        Dim page = pdfDocument.Pages(0)
        Console.WriteLine("W-9 Form values are as follows")
        ' Name
        Dim cName = DirectCast(page.Annotations("f1_1[0]"), EditBox).Text
        Console.WriteLine($"Name: {cName}")
        ' Business Address
        Dim cAddress = DirectCast(page.Annotations("f1_2[0]"), EditBox).Text
        Console.WriteLine($"Address: {cAddress}")
        ' Cleanup 
        pdfDocument.Dispose()
        Console.WriteLine()
        Console.WriteLine("Press any key to exit....")
        Console.ReadLine()
    End Sub
End Class