How to generate shadow under words on an image

public static System.Drawing.Image GenerateGiftCard(String text, Font font, Color textColor)
{
    System.Drawing.Image img = Bitmap.FromFile(@"G:\xxx\images\gift-card.jpg");
    Graphics drawing = Graphics.FromImage(img);

    //measure the string to see how big the image needs to be
    SizeF textSize = drawing.MeasureString(text, font);

    //create a brush for the text
    Brush textBrush = new SolidBrush(textColor);

    float x, y;

    x = img.Width / 2 - textSize.Width / 2;
    y = img.Height / 2 - textSize.Height / 2;

    drawing.DrawString(text, font, textBrush, x, y);

    drawing.Save();

    textBrush.Dispose();
    drawing.Dispose();

    return img;
}

But the text generated by this code is "plain" not dimensional and no shadow beneath it.

This is the font style I want:

Is there anything I can do to generate the same style via my code?

Does anyone know how to use SiteMapPath or ResolveURL objects to transfer a relative path to a physical one? cheers,