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Re: patch to fix text color in PDF output

From: David Kastrup
Subject: Re: patch to fix text color in PDF output
Date: Thu, 13 Aug 2009 15:33:43 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

Andrew Hawryluk <address@hidden> writes:

> On Thu, Aug 13, 2009 at 3:11 AM, David Kastrup<address@hidden> wrote:
>> Andrew Hawryluk <address@hidden> writes:
>>> Hi all,
>>> Long ago I noticed that the text in our PDF manuals is fully black,
>>> which results in rough-looking text when printed:
>>> Attached is a patch which corrects this, and the printed output is
>>> noticeably improved. (The on-screen output is nearly
>>> indistinguishable.)
>>> I'll send this to the TexInfo folks as well.
>>> Andrew
>>> From b2608a3c68f677729d5b72379d18b978b8c6236a Mon Sep 17 00:00:00 2001
>>> From: Andrew Hawryluk <address@hidden>
>>> Date: Wed, 12 Aug 2009 21:14:42 -0600
>>> Subject: [PATCH] Fix TexInfo PDF output text color
>>> Changed CMKY colors to RGB colors, as RGB black prints
>>> better than CMYK black on home printers.
>> In that case, the "home printer" is broken.  It might be conceivable to
>> use greyscale black as an alternative, but RGB black appears like a bad
>> choice for printing.
>> Could you specify the details of your "home printer"?
> I have had identical results on two monochrome laser printers, using
> both Evince and Acrobat Reader. The home printer is a Samsung ML-2010;
> I don't remember what the work printer is. In either case, they seem
> to compensate for the fact that cmyk (0 0 0 1) is not the darkest tone
> available. Do you get different results in print?

Sure do.  So what driver with what setting converts your PDF to the
respective printer language?

David Kastrup

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