Asp.net读取PDF文件到页面

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        Try
            Dim pdf As String = "./Files/ty1.pdf"
            pdf = Server.MapPath(pdf)

            'read all bytes
            If File.Exists(pdf) = False Then
                Throw New Exception("This report is not created")
            End If
            Dim fs As FileStream = File.Open(pdf, FileMode.Open)
            Dim buffer() As Byte = New Byte(fs.Length) {}
            fs.Read(buffer, 0, buffer.Length)
            fs.Close()

            'write to response
            Response.Clear()
            Response.ContentType = "application/pdf"
            Response.AddHeader("content-disposition", "filename=ty1.pdf")
            Response.AddHeader("content-length", buffer.Length.ToString())
            Response.BinaryWrite(buffer)
            Response.End()
        Catch ex As Exception

        End Try

一定要装PDF阅读器，否者是读不出来的