使用GdPicture.NET可對圖像掃描后進行簡單的處理，比如將PDF文件轉換成多頁的TIFF文件，本文將給出該示例的代碼。

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示例代碼如下：

  
      Dim oGdPictureImaging As New GdPictureImaging()
      Dim oGdPicturePDF As New GdPicturePDF


      If oGdPicturePDF.LoadFromFile("c:\test.pdf", False) = GdPictureStatus.OK Then
         Dim TiffID As Integer
         For i As Integer = 1 To oGdPicturePDF.GetPageCount()
            oGdPicturePDF.SelectPage(i)
            Dim RasterPageID As Integer = oGdPicturePDF.RenderPageToGdPictureImageEx(200, True) '200 DPI rendering with form fields, or native image extraction if the page is image based
            'Convert rendered page to bitonal
            oGdPictureImaging.ConvertTo1Bpp(RasterPageID) 'Remove this line if you want to obtain colour tiff image
            If i = 1 Then
               TiffID = RasterPageID
               oGdPictureImaging.TiffSaveAsMultiPageFile(TiffID, "c:\multipage.tif", TiffCompression.TiffCompressionAUTO)
            Else
               oGdPictureImaging.TiffAddToMultiPageFile(TiffID, RasterPageID)
            End If
            oGdPictureImaging.ReleaseGdPictureImage(RasterPageID)
         Next
         oGdPictureImaging.TiffCloseMultiPageFile(TiffID)
         oGdPicturePDF.CloseDocument()
         MsgBox("Done!")
      Else
         MsgBox("can't open PDF")
      End If