使用GdPicture.NET可以在將圖像掃描之后導出為PDF格式，并可進行編輯。比如導出的PDF圖像擁有很多頁，那么可以快速的在PDF文件中添加圖片，并可實現定位添加，可以在任一PDF頁面添加圖片。

下面是代碼示例：

Dim oGdPicturePDF As New GdPicturePDF
        Dim oGdPictureImaging As New GdPictureImaging

        oGdPicturePDF.LoadFromFile("c:\input.pdf", False)
        Dim ImageID As Integer = oGdPictureImaging.CreateGdPictureImageFromFile("c:\input.tif")

        oGdPicturePDF.SelectPage(1)

        Dim pageWidth As Single = oGdPicturePDF.GetPageWidth
        Dim pageHeight As Single = oGdPicturePDF.GetPageHeight

        oGdPicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitPoint)
        oGdPicturePDF.SetOrigin(PdfOrigin.PdfOriginBottomLeft)

        Dim imageResName As String = oGdPicturePDF.AddImageFromGdPictureImage(ImageID, False, False)
        oGdPictureImaging.ReleaseGdPictureImage(ImageID)
        oGdPicturePDF.DrawImage(imageResName, pageWidth / 3, pageHeight / 3, pageWidth / 3, pageHeight / 3)
        oGdPicturePDF.SaveToFile("c:\output.pdf")
        oGdPicturePDF.CloseDocument()