Me again, I have an gif file containing two rectangulars forms, one white and one black. c.drawImage('barre.gif',400,400,mask=[0,1,0,1,0,1]) or c.drawImage('barre.gif',400,400,mask=[254,255,254,255,254,255]) draws the image on but no transparency at all :-( What happens? PS : PIL is installed. -- Lionel Roubeyrie - lroubeyrie@limair.asso.fr LIMAIR http://www.limair.asso.fr