彩票走势图

GdPicture.NET作为知名的图形处理控件，在图像扫描之后的导出转换为PDF格式时的表现尤为出色，本文将以将单页或多页TIFF文件转换成PDF格式为例，继续介绍GdPicture.NET的强大图形处理功能。

》》》下载GdPicture.NET最新试用版

代码示例如下：

      Dim oGdPictureImaging As New GdPicture.GdPictureImaging
      Dim imageID As Integer = oGdPictureImaging.CreateGdPictureImageFromFile("C:\MyTiff.TIF")
      If imageID <> 0 Then
         Dim oGdPicturePDF As New GdPicturePDF
         oGdPicturePDF.NewPDF(True) ' set False to create non PDF/A
         oGdPicturePDF.AddImageFromGdPictureImage(imageID, False, True) 'Adds the first page
         If oGdPictureImaging.TiffGetPageCount(imageID) > 1 Then
            For i As Integer = 2 To oGdPictureImaging.TiffGetPageCount(imageID)'Adds other pages, if any
               oGdPictureImaging.TiffSelectPage(imageID, i)
               oGdPicturePDF.AddImageFromGdPictureImage(imageID, False, True)
            Next
         End If
         oGdPictureImaging.ReleaseGdPictureImage(imageID)
         oGdPicturePDF.SaveToFile("c:\mypdf.pdf")
         oGdPicturePDF.CloseDocument()
      End If