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From: d89mb@efd.lth.se (Magnus Bodin)
Newsgroups: comp.lang.postscript
Subject: Re: How can I tell if a file is "postscript"
Message-ID: <1991Mar4.075212.12828@lth.se>
Date: 4 Mar 91 07:52:12 GMT
References: <7647@uceng.UC.EDU>
Sender: newsuser@lth.se (LTH network news server)
Reply-To: d89mb@efd.lth.se (Magnus Bodin)
Organization: Institute of Tychology, Sweden
Lines: 17


A file to be accepted by a laser-writer must start with  

%!

at the first line. 

Just testing that will do. But that depends on what you're gonna use
the information for... But files not starting with '%!' won't be accepted
by PostScript-printers as PostScript, at least not apple's...

Takelr|,

-- 
Magnus Bodin               "Nec fasces, nec opes, 
Institute of Tychology,     sola artis sceptra perennant"
Box 5127, 220 05 Sweden     (Tycho Brahe, Stj{rneborg 1584)