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From: david@ridley.coyote.trw.com (David Hull)
Newsgroups: comp.lang.postscript
Subject: Is it possible to "or" paint onto the page?
Message-ID: <285D1AE6.1A73@deneva.sdd.trw.com>
Date: 17 Jun 91 20:26:14 GMT
Sender: news@deneva.sdd.trw.com
Organization: TRW Inc., Redondo Beach, CA
Lines: 19

The PostScript Language Reference Manual says that as each painting
operator is executed, "each new mark completely obscures any marks that
it may overlay.  This method is known as a painting model:  no matter
what color a mark has ... it is put onto the current page as if it
were applied with opaque paint."

My question is, is there some way to "or" a mark onto the page?
I want to superimpose a large grey "DRAFT" on top of an already
composed page, but the letters of the word "DRAFT" are covering up
the text behind them.  I can't image the "DRAFT" before the page
is painted because then the "DRAFT" gets obscured.

It's probably possible to set up the appropriate clipping path and then
draw a whole bunch of dots, but it seems like there ought to be a
better way.

Hoping my question isn't incredibly naive,

-David Hull