How to extract images from PDF in Visual Basic .NET

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Below is the sample code which demontrates how to extract imaged from PDF in Visual Basic . NET

Imports Bytescout.PDFExtractor
Imports System.Drawing.Imaging

Class Program
    Friend Shared Sub Main(ByVal args As String())

        ' Create Bytescout.PDFExtractor.ImageExtractor instance
        Dim extractor As New ImageExtractor()
		extractor.RegistrationName = "demo"
		extractor.RegistrationKey = "demo"

        ' Load sample PDF document

        Dim i As Integer = 0

        ' Initialize image enumeration
        If extractor.GetFirstImage() Then
                Dim outputFileName As String = "image" & i & ".png"

                ' Save image to file
                extractor.SaveCurrentImageToFile(outputFileName, ImageFormat.Png)

                i = i + 1

            Loop While extractor.GetNextImage() ' Advance image enumeration
        End If

        ' Open first output file in default associated application

    End Sub
End Class