Open pdf file from asp.net

did you tried window.open() method...

If you want to open pdf File in new Tab with clicking hyperlink follow this
1: Add one form as PDFViewer.aspx.
2: on the Page_Load event of this form add following code.

protected void Page_Load(object sender, EventArgs e)
   {
       if (!IsPostBack)
       {
           Response.ClearHeaders();
           Response.ClearContent();
           Response.Redirect("nameofPDFFile.pdf");
       }
   }

3. set properties of hyperlink is follows:

<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="~/PDFViewer.aspx"
            Target="_blank">HyperLink</asp:HyperLink>

Hi,

Try this,

Using System.Net.WebClient

It Will Show Particular Page with the Content Of Pdf File

 protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
      string path = Server.MapPath("Doc\demo.pdf");
      WebClient client = new WebClient();
      Byte[] buffer = client.DownloadData(path);


      if (buffer != null)
      {
        Response.ContentType = "application/pdf";
        Response.AddHeader("content-length", buffer.Length.ToString());
        Response.BinaryWrite(buffer);
      }
     }
}

Thanks

Siva Rm K