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Re: A bug report for GS

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In article <MPG.2d7bc10ba8671fe49898b3@usenet.plus.net>, ken@spamcop.net 
says...

> In fact it seems Mr Porton has indeed raised a Ghostscript bug report 
> (http://bugs.ghostscript.com/show_bug.cgi?id=695078) . But the report 
> doesn't seem to make much sense. 
> 
> He has created a PDF file using Ghostscript which he then prints from 
> Adobe Acrobat Reader. Ywo different settings in the Reader print dialog 
> apparently give rise to different output on his printer.
> 
> Its entirely unclear to me why this is regarded as a *ghostscript* bug 
> rather than, say, a bug in Acrobat Reader.....

As a final note; in the original cal.ps I see that the dates are either 
black, gray, outlined or outlined in gray. The gray colour used is 
defined as:

/dategray 0.800 def

which sets the gray for the dates as 20% gray (0 = black, 1 = white) so 
its quite a light gray.

Looking in the resulting PDF file I see that we set 0.800781 g (rounding 
errors internally here) so the PDF file maintains essentially the same 
colour in the same colour space. Eg:

0.800781 g
q
10 0 0 10 0 0 cm BT
/R8 25 Tf
0 1 -1 0 107.75 650 Tm
(1)Tj
-600 -80 Td
(2)Tj
ET
Q
0 g
q
10 0 0 10 0 0 cm BT
/R8 25 Tf
0 1 -1 0 187.75 150 Tm
[(3)-3500(4)-3500(5)-3500(6)-3500(7)]TJ
ET

As you can see this draws the numbers '1' and '2' in 20% gray and the 
numbers 3, 4, 5, 6 and 7 in 100% gray (black).

This is precisely what I see in the display when viewed in Acrobat. We 
can't be held responsible for what Adobe Acrobat, the printing system, 
and the final printer make of this, but there is no bug in Ghostscript.



			Ken

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A bug report for GS Victor Porton <porton@narod.ru> - 2014-02-28 23:53 +0200
  Re: A bug report for GS ken <ken@spamcop.net> - 2014-03-01 08:39 +0000
    Re: A bug report for GS ken <ken@spamcop.net> - 2014-03-01 10:04 +0000
      Re: A bug report for GS ken <ken@spamcop.net> - 2014-03-01 10:21 +0000
      Re: A bug report for GS Victor Porton <porton@narod.ru> - 2014-03-01 16:11 +0200
        Re: A bug report for GS ken <ken@spamcop.net> - 2014-03-01 19:38 +0000
    Re: A bug report for GS tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2014-03-02 00:45 -0500
      Re: A bug report for GS ken <ken@spamcop.net> - 2014-03-02 14:59 +0000
        Re: A bug report for GS tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2014-03-02 20:12 -0500
        Re: A bug report for GS luser- -droog <mijoryx@yahoo.com> - 2014-03-02 22:51 -0800
          Re: A bug report for GS ken <ken@spamcop.net> - 2014-03-03 07:51 +0000

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