[scribus] Ink coverage control : over 330%

["Christoph Schäfer"]

> Gesendet: Montag, 31. August 2015 um 10:00 Uhr
> Von: "Eric Hanuise" <eric.hanuise at flatlinedgames.com>
> An: "Scribus User Mailing List" <scribus at lists.scribus.net>
> Betreff: Re: [scribus] Ink coverage control : over 330%
>
> > For print I always use an output format of pdf
> > X/1-a:2001 which doesn't allow transparencies. Any
> > transparencies should be converted to bitmaps via
> > Gimp, imagemagick etc. Of course you should
> > always use CMYK colors instead of RGB for
> > printing.
> >
> > When excessive ink coverage is involved I use an
> > icc profile SWOPcoated5_240.icc which limits the
> > ink coverage to coverage to 240%. I will post it
> > at
> > http://wexfordpress.net/SWOPcoated5_240.icc
> >
> > It was created for my use years ago by one of
> > the experts on the icc_users mailing list.
> >    
> Thank you.
> As explained, Transparencies are key - we have a lot of image elements 
> that are on transparent background, which need to be superimposed on 
> other background elements, as well as inkscape svg files with lots of 
> effects (blurs, clipping, etc), which need to be converted to bitmap as 
> sometimes some of the effetcs get lost when importing them as svg's or 
> pdf's. Doing that work in Scribus itself is very impractical, and 
> importing bitmap works very well.
> 
> So are there any other options to control pdf ink coverage than using 
> export formats that do not support transparencies ?

Hi Eric,


Ink coverage and transparency aren't necessarily the same thing, and I think your problem is transparency.

Since you absolutely need to work with bitmap alpha channels, I suggest you export to PDF 1.4. If your printing company insists on a particular PDF/X version, they can convert the file(s) themselves using Acrobat. Alternatively you can load the file into Scribus 1.5.0, which is still experimental but enables export to PDF/X-4, and the latter supports transparency.


HTH,

Christoph