How to add a border to an image with C#

Question

I would like to take an image and add a border at the top of the image (BMP). For what I researched I need

1. load the image into an object
2. create a rectangle object
3. add the rectangle to the image

but I never worked with image in C# :(

Example: That image

to look like this

Answer 1

Hello, would just change the px sizes of the border no?!

border-image-width: 10px 10px 10px 10px;
(top) (right) (bottom) (left)

Answer 2

I was able to solve this problem by concatenating two images.

            Image principal = Image.FromFile(@"ImagemPrincipal.jpg");
            Image logo = Image.FromFile(@"ImagemHeader.jpg");

            int imagemSaida_Width = principal.Width;
            int imagemSaida_Height = principal.Height + logo.Height;

            var imagemSaida = new Bitmap(imagemSaida_Width, imagemSaida_Height);

            using (principal)
            {
                using (imagemSaida)
                {
                    using (var canvas = Graphics.FromImage(imagemSaida))
                    {

                        canvas.InterpolationMode = InterpolationMode.HighQualityBicubic;
                        // Definir plano de funda do arquivo de saida como Branco
                        canvas.Clear(Color.White);

                        // Adicionar o logo no arquivo de saida
                        canvas.DrawImage(logo, 0, 0);

                        // Adidionar principal no arquivo de saida
                        canvas.DrawImage(exame, 0, logo.Height);
                        canvas.Save();
                    }
                    imagemSaida.Save("ImagePrincipalComLogo.jpg");
                }
            }