CMYK Color profile

CMYK Color profile

[Benjamin Koppe]

Hello everyone,

I'm about creating a DIN Lang Folder brochure with ConTEXt. I got
everything set up the way I'd like it to. Now that I'm done with the
work, I've been told the output pdf should have a CMYK Color profile
embedded for the on demand printing service to be able to deal with the
file...

I am unsure what steps I have to take to make my output pdf compliant
with CMYK. I don't even know how I could verify it does indeed have
CMYK. Evince doesn't seem to show that info...

So if anybdy of you could give me some hints, that's be wonderful.

Cheers
De Benny

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___________________________________________________________________________________

Re: CMYK Color profile

[Jan U. Hasecke]

Am 30.05.19 um 23:34 schrieb Benjamin Koppe:
> Hello everyone,
> 
> I'm about creating a DIN Lang Folder brochure with ConTEXt. I got
> everything set up the way I'd like it to. Now that I'm done with the
> work, I've been told the output pdf should have a CMYK Color profile
> embedded for the on demand printing service to be able to deal with the
> file...
> 
> I am unsure what steps I have to take to make my output pdf compliant
> with CMYK. I don't even know how I could verify it does indeed have
> CMYK. Evince doesn't seem to show that info...
> 
> So if anybdy of you could give me some hints, that's be wonderful.
> 
> Cheers
> De Benny

Hi Benny,

if you can read German you might find some hints in my articles about
creating din lang folders
https://www.hasecke.eu/post/werbemittel-mit-context-gestalten/

On colors read the second part:
https://www.hasecke.eu/post/wie-wir-bei-hostsharing-mit-context-arbeiten/

Search the mailing list for color profile questions because I had to ask
often to make my things work. ;-)

The wiki contains some hints, too.


What you can do is to create a mode like this:

\startmode[fogra39]

\doiffileelse{CoatedFOGRA39.icc}{}{\farbprofilnichtgefunden}
% This will be printed in log if context does not find the profile for
% some reason

\definecolor  [hs-logoblau]   [c=1.000, m=0.735, y=0.279, k=0.160]

\definecolor  [hs-dunkelblau] [c=0.844, m=0.544, y=0.070, k=0.000]

\definecolor  [hs-hellblau]   [c=0.468, m=0.220, y=0.086, k=0.002]

\definecolor  [hs-orange]     [c=0.127, m=0.832, y=1.000, k=0.042]

\setupcolors[cmyk=yes,rgb=no,]

\setupbackend[
   format=PDF/X-3:2003,
   intent={Coated FOGRA39 (ISO 12647-2:2004)},
   ]

\stopmode

If you call context with --mode=fogra39 you will get these color
definitions and the defined pdf format with the right profile (intent).

If you download additional icc profiles (eg. the fogra one is missing in
the context distribution) put them here:
context/tex/texmf-local/colors/icc

In this folder they won't be overwritten by an update.

There are some limitations in ConTeXt concerning colors as embedded
images are not converted, so RGB images are converted only by the print
shop during printing, which can lead to strange results. I think the
only way to control the output is to convert all images to CMYK by hand.
By doing this you can modify them to get the best results.

I hope that helps
juh

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___________________________________________________________________________________

Re: CMYK Color profile

[Hans Hagen]

On 5/31/2019 7:56 AM, Jan U. Hasecke wrote:

> There are some limitations in ConTeXt concerning colors as embedded
> images are not converted, so RGB images are converted only by the print
> shop during printing, which can lead to strange results. I think the
> only way to control the output is to convert all images to CMYK by hand.
> By doing this you can modify them to get the best results.
afaik in principle a profile could map rgb onto cmyk

Hans


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
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If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: background color, was: CMYK Color profile

[Benjamin Koppe]

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Hi Jan,

yes, I've read these texts once and they played a role in thinking about getting into ConTEXt.

Thank you for your answer, now I have something to investigate.

Another follow up question on background colors:

I try to setup the background color by

 \setupbackgrounds[page][backgroundcolor=blue]

This works for the actual flyer, but the bleed remains white.

I also tried replacing 'page' with 'paper', but then the whole document has white background...

I saw your Hostsharing flyers do also have colors/graphics reaching the edge of the flyer, so I figure you ran into the same problem once.

Thanks a lot
De Benny

Am 31. Mai 2019 07:56:02 MESZ schrieb "Jan U. Hasecke" <juh+ntg-context@mailbox.org>:
>Am 30.05.19 um 23:34 schrieb Benjamin Koppe:
>> Hello everyone,
>> 
>> I'm about creating a DIN Lang Folder brochure with ConTEXt. I got
>> everything set up the way I'd like it to. Now that I'm done with the
>> work, I've been told the output pdf should have a CMYK Color profile
>> embedded for the on demand printing service to be able to deal with
>the
>> file...
>> 
>> I am unsure what steps I have to take to make my output pdf compliant
>> with CMYK. I don't even know how I could verify it does indeed have
>> CMYK. Evince doesn't seem to show that info...
>> 
>> So if anybdy of you could give me some hints, that's be wonderful.
>> 
>> Cheers
>> De Benny
>
>Hi Benny,
>
>if you can read German you might find some hints in my articles about
>creating din lang folders
>https://www.hasecke.eu/post/werbemittel-mit-context-gestalten/
>
>On colors read the second part:
>https://www.hasecke.eu/post/wie-wir-bei-hostsharing-mit-context-arbeiten/
>
>Search the mailing list for color profile questions because I had to
>ask
>often to make my things work. ;-)
>
>The wiki contains some hints, too.
>
>
>What you can do is to create a mode like this:
>
>\startmode[fogra39]
>
>\doiffileelse{CoatedFOGRA39.icc}{}{\farbprofilnichtgefunden}
>% This will be printed in log if context does not find the profile for
>% some reason
>
>\definecolor  [hs-logoblau]   [c=1.000, m=0.735, y=0.279, k=0.160]
>
>\definecolor  [hs-dunkelblau] [c=0.844, m=0.544, y=0.070, k=0.000]
>
>\definecolor  [hs-hellblau]   [c=0.468, m=0.220, y=0.086, k=0.002]
>
>\definecolor  [hs-orange]     [c=0.127, m=0.832, y=1.000, k=0.042]
>
>\setupcolors[cmyk=yes,rgb=no,]
>
>\setupbackend[
>   format=PDF/X-3:2003,
>   intent={Coated FOGRA39 (ISO 12647-2:2004)},
>   ]
>
>\stopmode
>
>If you call context with --mode=fogra39 you will get these color
>definitions and the defined pdf format with the right profile (intent).
>
>If you download additional icc profiles (eg. the fogra one is missing
>in
>the context distribution) put them here:
>context/tex/texmf-local/colors/icc
>
>In this folder they won't be overwritten by an update.
>
>There are some limitations in ConTeXt concerning colors as embedded
>images are not converted, so RGB images are converted only by the print
>shop during printing, which can lead to strange results. I think the
>only way to control the output is to convert all images to CMYK by
>hand.
>By doing this you can modify them to get the best results.
>
>I hope that helps
>juh
>
>___________________________________________________________________________________
>If your question is of interest to others as well, please add an entry
>to the Wiki!
>
>maillist : ntg-context@ntg.nl /
>http://www.ntg.nl/mailman/listinfo/ntg-context
>webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
>archive  : https://bitbucket.org/phg/context-mirror/commits/
>wiki     : http://contextgarden.net
>___________________________________________________________________________________

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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: CMYK Color profile

[Benjamin Koppe]

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makes sense what you write, but as I am not sure about the whole issue, I won't bet. ;)



Am 31. Mai 2019 09:40:06 MESZ schrieb Hans Hagen <j.hagen@xs4all.nl>:
>On 5/31/2019 7:56 AM, Jan U. Hasecke wrote:
>
>> There are some limitations in ConTeXt concerning colors as embedded
>> images are not converted, so RGB images are converted only by the
>print
>> shop during printing, which can lead to strange results. I think the
>> only way to control the output is to convert all images to CMYK by
>hand.
>> By doing this you can modify them to get the best results.
>afaik in principle a profile could map rgb onto cmyk
>
>Hans
>
>
>-----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
>-----------------------------------------------------------------
>___________________________________________________________________________________
>If your question is of interest to others as well, please add an entry
>to the Wiki!
>
>maillist : ntg-context@ntg.nl /
>http://www.ntg.nl/mailman/listinfo/ntg-context
>webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
>archive  : https://bitbucket.org/phg/context-mirror/commits/
>wiki     : http://contextgarden.net
>___________________________________________________________________________________

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___________________________________________________________________________________

Re: background color, was: CMYK Color profile

[Wolfgang Schuster]

Benjamin Koppe schrieb am 31.05.2019 um 21:23:
> Hi Jan,
>
> yes, I've read these texts once and they played a role in thinking 
> about getting into ConTEXt.
>
> Thank you for your answer, now I have something to investigate.
>
> Another follow up question on background colors:
>
> I try to setup the background color by
>
> \setupbackgrounds[page][backgroundcolor=blue]
\setupbackgrounds [paper] [background=color,backgroundcolor=blue]

Wolfgang
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: background color, was: CMYK Color profile

[Benjamin Koppe]

Here's the example. It's basically the code from DIN Lang Folder in the
Wiki plus a setupbackgrounds command. It works with `page` but fails to
work with `paper`:




%% This is a template for a Din lang Folder.
%% The folded page of such a flyer is shorter (97mm) than the other
pages (100mm)

%% This measure shows how much shorter the folded page is.
\definemeasure
    [shortfold]
    [3mm]

%% The bleed measure is necessary if you have colored page backgrounds
%% or images in the bleed.
%% Different print shops need different bleeds.
\definemeasure
    [bleed]
    [1mm]

%% This is the pagesize of the final PDF.
%% The bleed size is added two times to width and height.
\definepapersize
    [A4-flyer]
    [width=\dimexpr297mm+2\measured{bleed}\relax,
     height=\dimexpr210mm+2\measured{bleed}\relax]

%% The size of a normal page.
\definepapersize
    [flyer-page]
    [width=100mm,
     height=210mm]

%% The size of the folded page.
\definepapersize
    [flyer-page-small]
    [width=\dimexpr100mm-\measure{shortfold}\relax,
     height=210mm]

%% Imposition: With the following two commands we arrange the six pages
%% on the final PDF print sheet.

%% The flyerpages are imposed on the printed sheet.
\setuppapersize
    [flyer-page]
    [A4-flyer]

%% The pages are arranged as a tryptichon.
\setuparranging
    [TRYPTICHON]

%% Because of the shorter folded page and the bleed the pages has
%% to be shifted horizontally on the printed sheet.
%% The values are calculated here.
\definepageshift
    [flyer]
    [horizontal]
    [\dimexpr\measure{bleed}-\measured{shortfold}\relax,
    \measure{bleed},
     \measure{bleed},
     \dimexpr2\measured{shortfold}+\measured{bleed}\relax,
     \measure{bleed},
    \dimexpr\measure{bleed}-\measured{shortfold}\relax
    ]


%% The vertical pageshift is simple.
\definepageshift
    [flyer]
    [vertical]
    [\measure{bleed}]

\setuppageshift
    [paper]
    [flyer]

%% We define some measures to construct the page layout.
\definemeasure
    [small]
    [3mm]

\definemeasure
    [big]
    [\measure{small}*2]

%% Each page has a slightly different page layout.
%% The named layouts (1. bracket) inherit values from other layouts
%% which are assigned in the second bracket.
\definelayout
    [first]
    [page]
    [page=flyer-page,
     topspace=2\measured{big},
     backspace=2\measured{small},
     width=\dimexpr\paperwidth-4\measured{small}\relax,
     height=\dimexpr\paperheight-4\measured{big}\relax]

\definelayout
    [second]
    [first]
    [topspace=2\measured{big},
     backspace=2\measured{small},
     width=\dimexpr\paperwidth-2\measured{big}\relax]

\definelayout
    [thirdandfourth]
    [second]
    [backspace=\measure{big},
     width=\dimexpr\paperwidth-2\measured{big}\relax]

\definelayout
    [fifthandsixth]
    [first]
    [backspace=\measure{big},
     width=\dimexpr\paperwidth-2\measured{big}\relax]

%% We assign the layouts to the pages.
\definelayout [1] [first]
\definelayout [2] [second]
\definelayout [3] [thirdandfourth]
\definelayout [4] [thirdandfourth]
\definelayout [5] [fifthandsixth]
\definelayout [6] [fifthandsixth]


%% Some setups
\setupmakeup [doublesided=no]
\setuptolerance [verytolerant]


%% We want to see page and layout borders.
%% COMMENT THIS OUT BEFORE YOU PRINT!
\showframe

\setupbackgrounds[paper][background=color,backgroundcolor=blue]

\starttext
    \starttitle[title={First page}]
    \input lorem
  \stoptitle
  \starttitle[title={Second page}]
    \input lorem

  \stoptitle
  \starttitle[title={Third page}]
    \input lorem

  \stoptitle

  \starttitle[title={Fourth page}]
    \setuppapersize [flyer-page-small] [A4-flyer]
    \input lorem

  \stoptitle
  \starttitle[title={Fifth page}]
    \input lorem

  \stoptitle

  \starttitle[title={Sixth page}]
  \setuppapersize [flyer-page] [A4-flyer]
    \input lorem

  \stoptitle

\stoptext

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___________________________________________________________________________________

Re: background color, was: CMYK Color profile

[Benjamin Koppe]

When stupidity strikes, no one's safe.

Turns out \setupbackgrounds has an option called backgroundoffset, and
this is the solution. The not colorized part was the bleed part of the
document, so the background command would be:


\setupbackgrounds
	[paper]
	[
	background=color,
	backgroundcolor=blue,
	backgroundoffset=\measured{bleed}
	]

wonder if this would be handy in the DIN lang folder template in the
wiki, as most such brochures will supposingly have a colored
background...?




Am Samstag, den 01.06.2019, 05:48 +0200 schrieb Benjamin Koppe:
> Here's the example. It's basically the code from DIN Lang Folder in
> the
> Wiki plus a setupbackgrounds command. It works with `page` but fails
> to
> work with `paper`:
>
>
>
>
> %% This is a template for a Din lang Folder.
> %% The folded page of such a flyer is shorter (97mm) than the other
> pages (100mm)
>
> %% This measure shows how much shorter the folded page is.
> \definemeasure
>     [shortfold]
>     [3mm]
>
> %% The bleed measure is necessary if you have colored page
> backgrounds
> %% or images in the bleed.
> %% Different print shops need different bleeds.
> \definemeasure
>     [bleed]
>     [1mm]
>
> %% This is the pagesize of the final PDF.
> %% The bleed size is added two times to width and height.
> \definepapersize
>     [A4-flyer]
>     [width=\dimexpr297mm+2\measured{bleed}\relax,
>      height=\dimexpr210mm+2\measured{bleed}\relax]
>
> %% The size of a normal page.
> \definepapersize
>     [flyer-page]
>     [width=100mm,
>      height=210mm]
>
> %% The size of the folded page.
> \definepapersize
>     [flyer-page-small]
>     [width=\dimexpr100mm-\measure{shortfold}\relax,
>      height=210mm]
>
> %% Imposition: With the following two commands we arrange the six
> pages
> %% on the final PDF print sheet.
>
> %% The flyerpages are imposed on the printed sheet.
> \setuppapersize
>     [flyer-page]
>     [A4-flyer]
>
> %% The pages are arranged as a tryptichon.
> \setuparranging
>     [TRYPTICHON]
>
> %% Because of the shorter folded page and the bleed the pages has
> %% to be shifted horizontally on the printed sheet.
> %% The values are calculated here.
> \definepageshift
>     [flyer]
>     [horizontal]
>     [\dimexpr\measure{bleed}-\measured{shortfold}\relax,
>     \measure{bleed},
>      \measure{bleed},
>      \dimexpr2\measured{shortfold}+\measured{bleed}\relax,
>      \measure{bleed},
>     \dimexpr\measure{bleed}-\measured{shortfold}\relax
>     ]
>
>
> %% The vertical pageshift is simple.
> \definepageshift
>     [flyer]
>     [vertical]
>     [\measure{bleed}]
>
> \setuppageshift
>     [paper]
>     [flyer]
>
> %% We define some measures to construct the page layout.
> \definemeasure
>     [small]
>     [3mm]
>
> \definemeasure
>     [big]
>     [\measure{small}*2]
>
> %% Each page has a slightly different page layout.
> %% The named layouts (1. bracket) inherit values from other layouts
> %% which are assigned in the second bracket.
> \definelayout
>     [first]
>     [page]
>     [page=flyer-page,
>      topspace=2\measured{big},
>      backspace=2\measured{small},
>      width=\dimexpr\paperwidth-4\measured{small}\relax,
>      height=\dimexpr\paperheight-4\measured{big}\relax]
>
> \definelayout
>     [second]
>     [first]
>     [topspace=2\measured{big},
>      backspace=2\measured{small},
>      width=\dimexpr\paperwidth-2\measured{big}\relax]
>
> \definelayout
>     [thirdandfourth]
>     [second]
>     [backspace=\measure{big},
>      width=\dimexpr\paperwidth-2\measured{big}\relax]
>
> \definelayout
>     [fifthandsixth]
>     [first]
>     [backspace=\measure{big},
>      width=\dimexpr\paperwidth-2\measured{big}\relax]
>
> %% We assign the layouts to the pages.
> \definelayout [1] [first]
> \definelayout [2] [second]
> \definelayout [3] [thirdandfourth]
> \definelayout [4] [thirdandfourth]
> \definelayout [5] [fifthandsixth]
> \definelayout [6] [fifthandsixth]
>
>
> %% Some setups
> \setupmakeup [doublesided=no]
> \setuptolerance [verytolerant]
>
>
> %% We want to see page and layout borders.
> %% COMMENT THIS OUT BEFORE YOU PRINT!
> \showframe
>
> \setupbackgrounds[paper][background=color,backgroundcolor=blue]
>
> \starttext
>     \starttitle[title={First page}]
>     \input lorem
>   \stoptitle
>   \starttitle[title={Second page}]
>     \input lorem
>
>   \stoptitle
>   \starttitle[title={Third page}]
>     \input lorem
>
>   \stoptitle
>
>   \starttitle[title={Fourth page}]
>     \setuppapersize [flyer-page-small] [A4-flyer]
>     \input lorem
>
>   \stoptitle
>   \starttitle[title={Fifth page}]
>     \input lorem
>
>   \stoptitle
>
>   \starttitle[title={Sixth page}]
>   \setuppapersize [flyer-page] [A4-flyer]
>     \input lorem
>
>   \stoptitle
>
> \stoptext
>
> _____________________________________________________________________
> ______________
> If your question is of interest to others as well, please add an
> entry to the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
> _____________________________________________________________________
> ______________

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________