CopyBinaryFile_withBuffer

using System;
using System.IO;

namespace CopyBinaryFile_withBuffer
{
    class Program
    {
        static void Main(string[] args)
        {
            using (FileStream reader = new FileStream(@"..\..\..\university.png", FileMode.Open))
            using (FileStream writer = new FileStream(@"..\..\..\newFile.png", FileMode.Create))
            {
                byte[] buffer = new byte[4096];
                int bytesRead;
                while ((bytesRead = reader.Read(buffer, 0, buffer.Length)) > 0)
                {
                    writer.Write(buffer, 0, bytesRead);
                }
            }
        }
    }
}