How to position padded image?

[cinderblockgames]

I can create an image of an arbitrary size using this code:

using var image = original.Clone(context =>
    context.Pad(width, height, Color.White)
);

However, this places the original image in the center of the new image. Is there a way to specify the location (e.g., using AnchorPositionMode)? I'd like the original image in the bottom right corner of the new image.