using System;

using System.Net;

using System.IO;

public class Program

{

    public static void Main()

    {

        var url = "https://esign.simplesign.io/avtal/forcedownloadfile?fileurl=https%3A%2F%2Fstorage.googleapis.com%2Fsimplesignofferseu%2FuploadedMedia%2F22361%2Fverifications%2Fverification_495463.pdf";

        var httpRequest = (HttpWebRequest)WebRequest.Create(url);

        httpRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.84 Safari/537.36";

        //httpRequest.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip, deflate;q=0.8");

        //httpRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8";

        //httpRequest.Headers.Add("Accept-Encoding", "gzip deflate,br");

        //httpRequest.Headers.Add("Accept-Language", "en-US,en;q=0.9");

        var httpResponse = (HttpWebResponse)httpRequest.GetResponse();

        using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))

        {

            var result = streamReader.ReadToEnd();

        }

        Console.WriteLine(httpResponse.StatusCode);

    }

}