A byte file gets downloaded while downloading a pdf file

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C#

ASP.NET

Hi All,
I am downloading a dynamically generated pdf file to server folder.However it is working fine.But the problem is that while the pdf file is downloaded ,a byte file is also downloaded alongwith pdf file with 0kb. Can anyone help me please.Any hep will be really appreciated.

What I have tried:

pdfDoc.Add(pdfTable);
               pdfDoc.Close();
               string newfile = Name + "_" + DateTime.Now.ToString("dd-MMM-yyyy") + ".pdf";

               String path_name = "~/Sample/SampleReports/";
               var pdfPath = Path.Combine(Server.MapPath(path_name));

               string username = "Test";
               string password = "12345";
              //String file_name_pdf = "Test.pdf";

              var pdfContents = mStream.ToArray();
              File.WriteAllBytes(Path.Combine(pdfPath, newfile), pdfContents);
              WebRequest request = WebRequest.Create(Server.MapPath("~/Sample/SampleReports/" + pdfContents));
               request.Method = WebRequestMethods.Ftp.UploadFile;

               request.Credentials = new NetworkCredential(username, password);
               Stream reqStream = request.GetRequestStream();
               reqStream.Close();