class Program
{
static void Main(string[] args)
{
// Load the image.
System.Drawing.Image image1 = System.Drawing.Image.FromFile(@"C:\test.bmp");
// Save the image in JPEG format.
image1.Save(@"C:\test.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
// Save the image in GIF format.
image1.Save(@"C:\test.gif", System.Drawing.Imaging.ImageFormat.Gif);
// Save the image in PNG format.
image1.Save(@"C:\test.png", System.Drawing.Imaging.ImageFormat.Png);
}
}