[NTG-context] Questions to PDF/A compliant documents: missing ICC files? -- II.

Hans Hagen j.hagen at xs4all.nl
Fri Jul 20 21:24:23 CEST 2018


On 7/20/2018 5:05 PM, Tomas Hala wrote:
> Hi all,
> 
> I would like to open the PDF/A topic once more.

maybe discuss it at the upcoming ctx meeting ... you can prepare a 
summative talk about it (including the demands for following some standard)


> First, I would like to thank Alan, Luigi, Pablo and Henri for their pieces
> of help and information.
> 
> ========
> Summary:
> ========
> 
> (a) where I can find the set of original default*.icc files,
> 
> # Alan: /usr/local/share/color/icc/ghostscript
> 
> This must be dependent on the version of operating system or on something
> else because on computers I have permission to work on no this subtree is present.
> 
> # Luigi: tex/texmf-context/colors/icc
> 
> In standalone versions I tried during March and April and Pablo in June, there is really this special directory
> but we found there only one of the files -- default_gray.icc. Other default*.icc files
> (default_cmyk.icc, default_rgb.icc) which are mentioned at http://wiki.contextgarden.net/PDF/A
> were not present. Similarly at http://www.eci.org/en/downloads.
> 
> # Henri:  http://dl.contextgarden.net/misc/iccprofiles/complete_ICC_profiles.zip
> 
> Good deal -- here one can really find all three default*.icc files mentioned at
> http://wiki.contextgarden.net/PDF/A, but with no visible link to the
> mentioned zipfile from this page.
> 
> ========
> 
> (b) what is the reason why these files are not included in the TeXlive and garden installations,
> (c) if it is possible to add it there for future, and
> 
> # Luigi: They are not included in texlive for some copyright issues.
> 
> What is the difference between texlive copyright approach and context standalone copyright approach?
> 
> I read a few documents about licences for icc files and it seemed to me that the redistribution is possible,
> for non-commercial use without restrictions, the redistributor is obliged only to add the corresponding
> licence document to the software containing the icc file(s) and must not change the name of the file(s).
> 
> So, is possible to add the missing two default*.icc files to the context standalone version?
> 
> ========
> 
> (d) if the produced PDF (with \setupbackend[format={pdf/a-1b:2005}...]) is
> PDF/a compliant when these icc files are not present and the whole content
> of the document is only in black (i.e. no grayscale, no colours).
> 
> # No reaction. :-)
> 
> This question is important only if the default*.icc files are not (will not be) present and used when the PDF file is generated.
> Has somebody got any idea whether the PDF/A without icc files is accepted as PDF/A or not?
> 
> ========
> 
> The best,
> 
> Tomáš
> 
> -----------------------
> 
> Tue, Jun 19, 2018 ve 09:38:55AM +1200 Henri Menke napsal(a):
> #
> #
> # On 19/06/18 03:20, Tomas Hala wrote:
> # >Hi all,
> # >
> # >at http://wiki.contextgarden.net/PDF/A I found the following:
> # >
> # >"""""
> # >In ConTeXt mkiv, in order to create such a compliant PDF/A file, one can do as follows: first install (or check that they are present) the following color profiles files
> # >
> # >default_cmyk.icc
> # >default_gray.icc
> # >default_rgb.icc
> # >ISOcoated_v2_300_eci.icc
> # >
> # >into tex/texmf-context/colors/icc/profiles of your Context standalone directory. The default_*.icc files are part of ghostscript...
> # >"""""
> # >
> # >So I checked that they are present (CentOS 6.6, GPL Ghostscript 8.70) and
> # >I discovered that these files are not present at any ConTeXt (or TeX) installation from TeXlive
> # >neither as separate files, nor at file context/colors/icc/context/colorprofiles.xml.
> # >
> # >Only default_gray.icc is present as a part of ConTeXt installations from our garden.
> # >
> # >Therefore, I would like to ask
> # >(a) where I can find the set of original default*.icc files,
> # >(b) what is the reason why these files are not included in the TeXlive and garden installations,
> # >(c) if it is possible to add it there for future, and
> # >(d) if the produced PDF (with \setupbackend[format={pdf/a-1b:2005}...]) is PDF/a compliant when these
> # >icc files are not present and the whole content of the document is only in black (i.e. no grayscale, no colours).
> #
> # wget http://dl.contextgarden.net/misc/iccprofiles/complete_ICC_profiles.zip
> # unzip complete_ICC_profiles.zip -d /opt/context/tex/texmf-local
> #
> # >
> # >Our university decided to be "PDF/a compliant", that is the reason why I am asking.
> # >
> # >Best wishes,
> # >
> # >Tomáš
> # >
> # >___________________________________________________________________________________
> # >If your question is of interest to others as well, please add an entry to the Wiki!
> # >
> # >maillist : ntg-context at 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 at 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
> # ___________________________________________________________________________________
> 
>                                           Tomáš Hála
> --------------------------------------------------------------------
> Mendelova univerzita, Provozně ekonomická fakulta, ústav informatiky
> Zemědělská 1, CZ-613 00 Brno,  tel. +420 545 13 22 28
> --------------------------------------------------------------------
> http://akela.mendelu.cz/~thala
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context at 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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