Hi,

a cool option would be an option to "force" the watermark image size in pixels,
whatever the outputs image sizes (say for example 150x100 pixels whatever the
image size in background oh this watermark)

Actually, if setting an watermark image, it is applied first and then the module
resize the global image, so i have different watermark size on the different
ouptuts because of different images size and orientation (my outputs are :
thumbnail, medium and big images on a real estate website).