Not specifying exactly what you mean I can only guess...

I'm a bit rusty on this, but I think the syntax you need is something like this:

# $image is current pic

# $watermark is "faint-dark-grey-design-on-black-
# background-image" object.

$image->Composite(compose => 'Plus',
                  image   => $watermark,
                  x       => 10,
                  y       => 10
                  );
[download]

where x and y are the offsets for the watermark (I think :)

hth

cLive ;-)