"A TIFF file can also include a vector-based Clipping path (an
outline that crops or frames the main image)."
So ... not the same thing. ;-)
Yeah, that sounds more like what I know. Anyway, whatever TIFF
supports, TIFFRepresentation in NSImage will definitely always give
you a bitmapped copy of the image, at least on OSs that have shipped
so far, and I doubt that's likely to change anytime soon.