DataService.cs

public static void ConvertToPDF()
        {
            Byte[] bytes;

            using (var ms = new MemoryStream())
            {
                using (var doc = new Document())
                {
                    using (var writer = PdfWriter.GetInstance(doc, ms))
                    {
                        doc.Open();

                        var web = new HtmlWeb();
                        var html = web.Load(url).ToString();

                        // Convert
                        using (var htmlWorker = new iTextSharp.text.html.simpleparser.HTMLWorker(doc))
                        {
                            using (var sr = new StringReader(html))
                            {
                                htmlWorker.Parse(sr);
                            }
                        }

                        doc.Close();
                    }
                }

                bytes = ms.ToArray();
            }

            var file = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "TestOutput.pdf");
            System.IO.File.WriteAllBytes(file, bytes);
        }