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Article #1554

Re: Another EPS question

#1554
From: Mats Ohrman
Date: Wed, 17 Jan 1990 09:00
45 lines
2907 bytes
chris@super.ORG (Chris P. Ross) writes:

>In article <3351@cbnewsj.ATT.COM> ralph@lzfme.ATT.COM (Ralph Brandi) writes:
>  Excuse me, this was probably just my own stupidity.  But, as far as I
>know to this point, the only way's to generate EPS from a Mac was to use
>either the CMD-F or the CMD-K print options.  Is there a way to generate
>EPS so as not having to use these?  If so, you may be right, but with the
>CMD-F sequence, I had to process it, and I couldn't get the CMD-K output
>to work either.  (I don't know why, I still think it should've, but it
>didn't want to)  Help appriciated.

CMD-[FK] gives you captured Postscript output, intended for the LaserWriter. 

This has not necessarily anything to do with EPS, "encapsulated
postscript", which is (supposed to be) any wellbehaved piece of
postscript code that follows Adobe's structuring conventions, and is
encapsulated with "structure comments" that tells the recipient of
the EPS file (typically a layout program, such as Pagemaker) what the
postscript code does and where on the page it does it.  That makes it
possible for a program to use PS code without understanding it, and
thus spares it from the necessity (and expense) of containing a full
PS interpreter.

Many (if not most) graphics program for the Mac (and MessDos/OS-a-half
machines) now has the option to save files in EPS format (for
instance, see "Export" in Freehand).

The EPS standard also tells how to bring along a bitmap with the PS
code for use in previews. This bitmap is optional, and is defined for
three formats: Mac, PC and computer independent ("EPSI"). It is up to
the creating program wich bitmap format to add, and the recieving
program which format to read, if any. Also, it is this bitmap that
most so-called "EPS to PICT-converter" programs just copies, ignoring
the actual postscript.

For more info, see "Encapsulated Postscript Files Specification,
Version 2.0", that is available from Adobe's mail server.

/* End of lecture: I hope I didn't bore you */

_____________________________________________________________________________
       _                            :  matoh@sssab.se
/ Mats Ohrman,                      :  {mcvax,munnari,uunet}!sunic!sssab!matoh
Scandinavian System Support AB,     :  Phone:  Nat.     013-11 16 60 
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From: matoh@sssab.se (Mats Ohrman)
Newsgroups: comp.lang.postscript,comp.text.desktop
Subject: Re: Another EPS question
Keywords: EPS Macintosh
Message-ID: <e15mhfb755C@sssab.se>
Date: 17 Jan 90 09:00:02 GMT
References: <18645@mikado.super.ORG> <3351@cbnewsj.ATT.COM> <18981@mikado.super.ORG>
Organization: Scandinavian System Support AB
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