Web中显示pdf文件

if (Page.IsPostBack)...{ 


FileStream MyFileStream = new FileStream(@"d:inetpubwwwrootsmall.pdf", FileMode.Open); 


long FileSize; 


FileSize = MyFileStream.Length; 


byte[] Buffer = new byte[(int)FileSize]; 


MyFileStream.Read(Buffer, 0, (int)MyFileStream.Length); 


MyFileStream.Close(); 


Response.ContentType="application/pdf"; 


Response.AddHeader( "content-disposition","attachment; filename=MyPDF.PDF"); 


Response.BinaryWrite(Buffer);