//Program.cs

    public class Program
    {
        public static void Main(string[] args)
        {
            var url = GetAgumentFromConsole("URL", "http://angularjs.org");
            var outputPath = GetAgumentFromConsole("output path", @"C:\Temp\PdfPerformanceTest");
            var iterations = int.Parse(GetAgumentFromConsole("number of iterations", "10"));
            var pdfConverterName = GetAgumentFromConsole("PDF Converter (evo / eo)", "evo");

            Prompt("Press any key to start...");

            Directory.CreateDirectory(outputPath);

            var pdfConverter = CreatePdfConverter(pdfConverterName);

            Console.WriteLine();

            var sw = new Stopwatch();

            for (int i = 0; i < iterations; i++)
            {
                Console.Write("{0} ({1} MB -&gt; ", i + 1, GetCurrentProcessPrivateMemorySizeMb());

                var fileName = string.Format("{0}_{1}.pdf", pdfConverterName, Guid.NewGuid());

                sw.Restart();
                pdfConverter.Convert(url, Path.Combine(outputPath, fileName));
                sw.Stop();

                GC.Collect(0);
                GC.Collect(1);
                GC.Collect(2);

                Console.Write("{0} MB, {1} ms); ", GetCurrentProcessPrivateMemorySizeMb(), sw.ElapsedMilliseconds);
            }

            Console.WriteLine();

            Prompt("Press any key to exit...");
        }

        private static long GetCurrentProcessPrivateMemorySizeMb()
        {
            return Process.GetCurrentProcess().PrivateMemorySize64 / (1024 * 1024);
        }

        private static void Prompt(string message)
        {
            Console.WriteLine(message);
            Console.ReadKey(intercept: true);
        }

        private static IPdfConverter CreatePdfConverter(string pdfConverterName)
        {
            switch (pdfConverterName)
            {
                case "evo":
                    return new EvoPdfConverter();
                case "eo":
                    return new EoPdfConverter();
                default:
                    throw new ArgumentOutOfRangeException("pdfConverterName");
            }
        }

        private static string GetAgumentFromConsole(string argumentName, string defaultValue)
        {
            Console.WriteLine("Please enter the {0} (default of '{1}'):", argumentName, defaultValue);
            var input = (Console.ReadLine() ?? string.Empty).Trim();

            if (string.IsNullOrEmpty(input))
                return defaultValue;

            return input;
        }
    }

//IPdfConverter.cs

    public interface IPdfConverter
    {
        void Convert(string url, string localPath);
    }

//EoPdfConverter.cs

    public class EoPdfConverter : IPdfConverter
    {
        public void Convert(string url, string localPath)
        {
            HtmlToPdf.ConvertUrl(url, localPath);
        }
    }

//EvoPdfConverter.cs

    public class EvoPdfConverter : IPdfConverter
    {
        public void Convert(string url, string localPath)
        {
            //Code omitted as probably not relevant, we were testing some other frameworks for comparison.
        }
    }