Digital BW, The Print

> Better to add a Levels Adjustment layer right over the top of the 
> Background layer.  That way you can go back and adjust it whenever
you choose.  It's 
> very simple and completely safe from an information preservation
point of view.

I don't think it IS safe from information-preservation point of
view - at least, assuming you started out with a 1bit/channel scan.
Because you must convert to 8bit before you can use Adjustment
layers, but if you're changing levels or curves in 8bit mode, you
can definitely lose info if you are compresing/expanding tonal
ranges much.

Maybe I am issing something though - I've a relative newbie.

John