Date:	Tue, 13 Jan 1998 13:11:57 +0100 (GMT+0100)
From:	Vincent Croquette <vincent AT lps DOT ens DOT fr>
Message-Id:	<199801131211.NAA01591@pimprenelle.lps.ens.fr>
To:	djgpp AT delorie DOT com
Subject:	off topics Poscript question

	Does anyone know how to make one color in a 
	bitmat image become transparent for was is behind
	
	many thanks
	
	vincent croquette
	
 

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