[CREATE] PDF and Pantone

[Jakub Jankiewicz]

Great thanks.

On Thu, 04 Oct 2012 11:55:48 -0300
"Guillermo Espertino (Gez)" <gespertino at gmail.com> wrote:

> El 04/10/12 11:24, Alexandre Prokoudine escribió:
> > On Thu, Oct 4, 2012 at 11:13 AM, Jakub Jankiewicz<jcubic at onet.pl>
> > wrote:
> >> Hi all,
> >>
> >> I read about Pantone on Wikipedia and it's say that Free Software
> >> don't support it, is there a hack that will allow to prepare pdf
> >> with pantone inside?
> > No hacks, just use Scribus.
> >
> > http://wiki.scribus.net/canvas/How_to_legally_obtain_spot_colour_palettes_for_use_in_Scribus_1.3.3.x_and_later_versions
> 
> Swatchbooker can create a sRGB converstion of the Formula books
> (which are in CIE Lab).
> The Formula books are supposed to be used for spot colors and for 
> intermediate/late binding 4-color process workflows (which means
> working with RGB and converting to CMYK later).
> So you can have a reasonable approximation in Inkscape and GIMP, for 
> instance, using Swatchbooker to convert Pantone Formula guides
> to .gpl palettes.
> 
> Pantone Bridge books are only advised to be used if your print
> workflow is CMYK from the beginning (early binding). If you'll rely
> on RGB assets (like images created in GIMP) it's better to use an
> intermediate or late binding workflow.
> 
> So here's my suggestion:
> If by "Pantone PDFs" you mean Pantone Spots, use the Formula
> swatches, straight from Scribus. It's the only free application that
> can manage spot colors at the moment (it's possible to achieve
> something usable with Inkscape, then taking the file to scribus, but
> it's a hackish way). If by "Pantone PDFs" you mean a PDF in CMYK with
> the exact CMYK values you get from your bridge book, you have two
> options: Again, to use Scribus which is the only
> early-binding-capable program in the free software wold, or to adopt
> an Intermediate or Late Binding workflow, using the sRGB values from
> the Formula swatches (not the sRGB rendering you have in the bridge
> guide, which is a screenmatch for CMYK values).
> 
> I bet that reading "work in sRGB for print" sounds very wrong, but
> trust me. If your print provider doesn't use the exact print
> configuration Pantone used for their books (which is the most
> probable situation), there will be a difference between the books and
> the prints you get, because of the paper stocks, print configuration,
> weather, etc. That difference is comparable to what you get from
> working with a color managed RGB workflow. The only tricky part with
> intermediate binding is taking care of black ink when it has to be
> used as spot (in small size black body text, for instance).
> For that, Scribus gives you the tools for using a pure K black in
> your design elements so you get 100%K in your output instead of
> composite black.
> 
> Cheers,
> Gez.
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--
Jakub Jankiewicz, Web Developer
http://jcubic.pl
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