Process ardProcess = new Process();
            ardProcess.StartInfo.FileName = @"C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AcroRd32.exe";
            ardProcess.StartInfo.Arguments = @" /t " + @"G:\test.pdf";
            ardProcess.StartInfo.CreateNoWindow = true;
            ardProcess.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
            ardProcess.Start();