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static void Main(string[] args)
{
            string test = "^XA" +

                                "^FX Top section with company logo, name and address." +
                                "^CF0,60" +
                                "^FO50,50^GB100,100,100^FS" +
                                "^FO75,75^FR^GB100,100,100^FS" +
                                "^FO88,88^GB50,50,50^FS" +
                                "^FO220,50^FDInternational Shipping, Inc.^FS" +
                                "^CF0,40" +
                                "^FO220,100^FD1000 Shipping Lane^FS" +
                                "^FO220,135^FDOktanville TN 38102^FS" +
                                "^FO220,170^FDUnited States (USA)^FS" +
                                "^FO50,250^GB700,1,3^FS" +
                                "" +
                                "^FX Second section with recipient address and permit information." +
                                "^CFA,30" +
                                "^FO50,300^FDThomas Müller^FS" +
                                "^FO50,340^FD29 Am Stacchus^FS" +
                                "^FO50,380^FDMünchen TN 89021^FS" +
                                "^FO50,420^FDGermany (Ger)^FS" +
                                "^CFA,15" +
                                "^FO600,300^GB150,150,3^FS" +
                                "^FO638,340^FDPermit^FS" +
                                "^FO638,390^FD123456^FS" +
                                "^FO50,500^GB700,1,3^FS" +
                                "" +
                                "^FX Third section with barcode." +
                                "^BY5,2,270" +
                                "^FO175,550^BC^FD1234567890^FS" +
                                "" +
                                "^FX Fourth section (the two boxes on the bottom)." +
                                "^FO50,900^GB700,250,3^FS" +
                                "^FO400,900^GB1,250,3^FS" +
                                "^CF0,40" +
                                "^FO100,960^FDShipping Ctr. X34B-1^FS" +
                                "^FO100,1010^FDREF1 F00B47^FS" +
                                "^FO100,1060^FDREF2 BL4H8^FS" +
                                "^CF0,190" +
                                "^FO485,965^FDCA^FS" +
                                "" +
                                "^XZ";

            byte[] zpl = Encoding.UTF8.GetBytes(test);

            // adjust print density (8dpmm), label width (4 inches), label height (6 inches), and label index (0) as necessary
            var request = (HttpWebRequest)WebRequest.Create("http://api.labelary.com/v1/printers/8dpmm/labels/4x6/0/");
            request.Method = "POST";
            request.Accept = "application/pdf"; // omit this line to get PNG images back
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = zpl.Length;

            var requestStream = request.GetRequestStream();
            requestStream.Write(zpl, 0, zpl.Length);
            requestStream.Close();

            try
            {
                var response = (HttpWebResponse)request.GetResponse();
                var responseStream = response.GetResponseStream();
                var fileStream = File.Create(@"C:\Users\XXX\Documents\labelone.pdf"); // change file name for PNG images
                responseStream.CopyTo(fileStream);
                responseStream.Close();
                fileStream.Close();
            }
            catch (WebException e)
            {
                Console.WriteLine("Error: {0}", e.Status);
            }         
        }