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Revision as of 09:46, 1 November 2021

1,662 bytes added ,  09:46, 1 November 2021
Updates about GWG
<texcode>
gray rgb cmyk spot transp. notesPDF/X-1a:2001 % PDF Version 1.3 (Acrobat 4.x)* * * PDF/X-1a:2003 % PDF Version 1.4 (Acrobat 5.x) * * * PDF/X-3:2002 % PDF Version 1.3 (Acrobat 4.x)* * * *PDF/X-3:2003 % PDF Version 1.4 (Acrobat 5.x) * * * * PDF/X-4 % PDF Version 1.6 (Acrobat 7.x)* * * * * PDF layersPDF/X-4p % PDF Version 1.6 (Acrobat 7.x)* * * * * PDF layers; ICC externally suppliedPDF/X-5g % PDF Version 1.6 (Acrobat 7.x) * * * * * PDF layers; graphics can be outside pdfPDF/X-5n % PDF Version 1.6 (Acrobat 7.x) * * * * * PDF layers; ICC externally suppliedPDF/X-5pg % PDF Version 1.6 (Acrobat 7.x) * * * * * PDF layers; p + g
</texcode>
 
* PDF/X-1 uses device dependent colors, i.e. your pictures must be converted into the output color space (gray or CMYK).
* PDF/X-3+ uses device '''in'''dependent colors, i.e. the color space of your pictures doesn’t matter, but it must be defined by a color profile.
* It makes no sense to use CMYK pictures with PDF/X-3+, because color conversions between CMYK profiles are more lossy than any RGB-to-CMYK conversion!
* It makes sense to use PDF/X-1a:2003 for bw printing.
* Even if they’re allowed in X/4+, don’t use PDF layers for print projects – your printshop will not be able to handle them.
Predefined output intents:
<code>intent =</code>
Coated FOGRA39 (ISO 12647-2:2004)
GRACoL2006_Coated1v2.icc
ISO Coated v2 300% (ECI)
ISO Coated v2 (ECI)
ISOnewspaper26v4
ISOnewspaper26v4_gr
ISO Uncoated
ISO Uncoated Yellowish
ISO Web Coated
Japan Color 2001 Coated
Japan Color 2002 Newspaper
Japan Web Coated (Ad)
SNAP 2007
SWOP2006_Coated3v2.icc
SWOP2006_Coated5v2.icc
Uncoated FOGRA29 (ISO 12647-2:2004)
Web Coated FOGRA28 (ISO 12647-2:2004)
PSR_LWC_PLUS_V2_PT
PSR_LWC_STD_V2_PT
PSR_SC_PLUS_V2_PT
PSR_SC_STD_V2_PT
PSRgravureMF
 
'''Which one to use?'''
* In Europe, use FOGRA profiles.
* In the USA, use SWOP profiles.
* In Japan, use Japan profiles.
* Use Coated for image printing paper.
* Use Uncoated for natural paper (e.g. "offset").
* "Web" means "web offset", i.e. big volume printing from a roll of paper (vs. sheet paper).
<texcode>
Coated FOGRA39 (ISO 12647-2:2004)
GRACoL2006_Coated1v2.icc
ISO Coated v2 300% (ECI)
ISO Coated v2 (ECI)
ISOnewspaper26v4
ISOnewspaper26v4_gr
ISO Uncoated
ISO Uncoated Yellowish
ISO Web Coated
Japan Color 2001 Coated
Japan Color 2002 Newspaper
Japan Web Coated (Ad)
SNAP 2007
SWOP2006_Coated3v2.icc
SWOP2006_Coated5v2.icc
Uncoated FOGRA29 (ISO 12647-2:2004)
Web Coated FOGRA28 (ISO 12647-2:2004)
PSR_LWC_PLUS_V2_PT
PSR_LWC_STD_V2_PT
PSR_SC_PLUS_V2_PT
PSR_SC_STD_V2_PT
PSRgravureMF
</texcode>
Some examples:
<tt>.../<context-path>/colors/icc/context/colorprofiles.xml|.lua.</tt>
This list contains the profiles recommended by the [http://www.gwg.org GWG] (Ghent PDF Workgroup)in 2008,
the set of profiles bundled with [http://pages.cs.wisc.edu/~ghost/ ghostscript]
and three test only profiles from the [http://www.color.org ICC] (International Color Consortium).
Special thanks must go to the '''Ghent PDF Workgroup (GWG)recommendations: '''for making a list of recommended profiles. Please have a look at the* [http://dl.contextgarden.net/misc/iccprofiles/GWG_recommended_ICC_profiles_v13.pdf official documentation2008 version]first * [https://gwg.org/technical-specifications/gwg-2015-specifications/ 2015 version] (will take you only a minuteno profiles mentioned).The origin of this document There are a few contradictions to the PDF/X standards (and some more infoby [https://www.pdfa.org PDF Association])is located to assure a better quality, see the [httphttps://www.gwgpdfa.org/recommended_ICC_profiles.phtm herefurther-quality-requirements-pdfx-plus/ article by Stephan Jaeggi].
Nearly all predefined ICC profiles are also available in the download section.
Output intents are bound to very specific printing conditions (which vary worldwide),
so it's it’s very likely that you only need one or two ICC profiles (and not all of them).Therefore the profiles are also available as profile ZIPs come in 'localisedlocalized' versions.
GWG recommend ICC profiles
[http://dl.contextgarden.net/misc/iccprofiles/GWG_recommended_ICC_profiles_Europe.zip (Europe)]
[http://dl.contextgarden.net/misc/iccprofiles/GWG_recommended_ICC_profiles_India.zip (India)]
[http://dl.contextgarden.net/misc/iccprofiles/GWG_recommended_ICC_profiles_Japan.zip (Japan)]
[http://dl.contextgarden.net/misc/iccprofiles/GWG_recommended_ICC_profiles_USA.zip (USA)]
[http://www.color.org/probeprofile.xalter here]
ghostscript Ghostscript profiles:
[http://dl.contextgarden.net/misc/iccprofiles/ghostscript_ICC_profiles.zip here]
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