From: Jano Kula <jano.kula@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Bug in overprint? (was: how to set overprint)
Date: Mon, 16 Nov 2020 14:42:01 +0100 [thread overview]
Message-ID: <CAPefzZ37oQe2GSwXikMG+GbEp1hJpg_jECR515+km-PUP6GKKA@mail.gmail.com> (raw)
In-Reply-To: <CAGhDZhAfipAXz9z6OVwYgSUFjU_3ixGmjJrnyTYjtyS4Ed4QiA@mail.gmail.com>
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Hello Andrés!
On Wed, 11 Nov 2020 at 01:25, Andres Conrado Montoya Acosta <
elandi@chiquitico.org> wrote:
> may I ask someone, who understands knockout and overprint in the printing
>> press, to check test cases in the attached file from the test suite, if
>> overprint is working or not in Mark IV, please?
>>
>> Regards,
>> Jano
>>
>>
> Hi Jano, as far as I can check with my pdf editors, it seems overprinting
> is working. The black ink is printed above the blue, with no white reserve
> below it.
>
Sorry for the delay, I had to downsample the screenshots after the original
reply didn't get through (too big) and in the end remove them completely.
Thank you for checking. Looks like a bug in Acrobat (older version
11.0.23), not ConTeXt.
What editors do you use?
After your test I was digging deeper. When I disable black plate in *Preview:
Separations* it doesn't show an overprint, the room under the letters is
white (original problem). When I remove one overprint manually in
Illustrator, Acrobat shows the remaining overprints. I've found out later,
I could use *Profile: Color Warnings*, where all overprints are visible,
but I would rather see it in separated plates.
Hope this helps someone in the future, too.
Jano
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next prev parent reply other threads:[~2020-11-16 13:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.1.1604919601.21074.ntg-context@ntg.nl>
2020-11-11 0:07 ` Andres Conrado Montoya Acosta
2020-11-16 13:42 ` Jano Kula [this message]
2020-11-16 21:21 Andres Conrado Montoya
-- strict thread matches above, loose matches on Subject: below --
2020-11-09 9:21 Jano Kula
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