Add Signature to an Image Programmatically in C#

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Sign Image.cs

// Create an instance of Image to load the primary image
using (Image canvas = Image.Load("layers.psd"))
{
    // Create another instance of Image class to load the secondary image with signature
    using (Image signature = Image.Load("sample.psd"))
    {
        // Create an instance of Graphics class
        Graphics graphics = new Graphics(canvas);

        // Call the DrawImage method while specifying the appropriate location 
        //Here the secondary image is drawn at the right bottom of the primary image
        graphics.DrawImage(signature, new Point(canvas.Height - signature.Height, canvas.Width - signature.Width));
        canvas.Save("ImageSignature.png", new PngOptions());
    }
}