From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Pablo Rodriguez <oinos@gmx.es>
Subject: Re: ICC profiles for \externalfigure
Date: Mon, 9 Oct 2017 20:16:07 +0200 [thread overview]
Message-ID: <9c695ca6-3f5f-ad20-7e10-ca141f419a28@wxs.nl> (raw)
In-Reply-To: <4da0a758-9297-fa4c-f922-8dd4d5ba01b9@gmx.es>
On 10/8/2017 11:09 AM, Pablo Rodriguez wrote:
> Dear Luigi and Hans,
>
> I have the following sample:
>
> \setupbackend
> [format=PDF/A-3a,
> intent=sRGB IEC61966-2.1,
> profile={sRGB.icc,default_gray.icc},
> level=0]
>
> \setuptagging[state=start]
>
> \setupcolors[cmyk=no, pagecolormodel=auto]
>
> \setupexternalfigure[location=default]
>
> \startTEXpage[offset=1em, align=center]
> \dontleavehmode
> \externalfigure[cow-black]
>
> \dontleavehmode
> \externalfigure[cow-brown]
>
> \dontleavehmode
> \externalfigure[basic-figures.pdf][scale=200]
> \stopTEXpage
> \stoptext
>
> The third external figure is found at
> http://pdf.ousia.tk/basic-figures.pdf. I included it, since it adds a
> transparency group (and I guess this might be relevant).
>
> PDF/A-3a validation (http://verapdf.org) warns about XObjects not having
> any ICC profile.
>
> Would it be possible to add the "profile" key to \externalfigure, so
> that each figure may have its own profile (or the reference to the
> profile) added?
i looked into it and it's not going to happen
(1) we don't interpret the included images
(2) and even if we could mess with the either or not present resource
getting the resource from someplace (main document, upstream object) is
dubious and fragile too
so .. fix the included images ... (bitmap images can be autoconverted
into profiled ones runtime but i didn't figure out a call to whatever
program for pdf yet)
Hans
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next prev parent reply other threads:[~2017-10-09 18:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-08 9:09 Pablo Rodriguez
2017-10-09 18:16 ` Hans Hagen [this message]
2017-10-09 19:55 ` Pablo Rodriguez
2017-10-09 23:02 ` Hans Hagen
2017-10-10 9:27 ` Henning Hraban Ramm
2017-10-10 20:11 ` Pablo Rodriguez
2017-10-10 20:09 ` Pablo Rodriguez
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