On Friday 01 October 2010 17:32:15 eric hanuise wrote: > On 01/10/10 16:54, Pierre Marchand wrote: > > Vous (eric hanuise) avez ?crit : > >> On 01/10/10 16:32, Christoph Sch?fer wrote: > >>> On Friday 01 October 2010 12:30:15 eric hanuise wrote: > >>>> Hi all. > >>>> > >>>> I've exported a PDF as pdf/x3 using isocoated v2 ICC profile. > >>>> It contains several png images, which are rgb. > >>>> > >>>> As I understand it, the pdf exported by scribus should be cmyk only, > >>>> and the images converted to cmyk during pdf generation. > >>>> however, the printer came back to me and told me the pdf contained RGB > >>>> images. > >>>> > >>>> Have I misunderstood the ability of scribus to convert everything to > >>>> cmyk on pdf export, or is there some setting I missed ? > >>> > >>> Yes, this seems to be a misunderstanding, and to be honest, it's quite > >>> common even among commercial printers. The PDF/X-3 standard explictly > >>> permits RGB imgaes (plus a colour profile) to be included in a PDF, > >>> which is one of its biggest advantages. In other words: Scribus > >>> adheres to the standard :) > >> > >> Thanks, bu this does not reply my question :) pdf/x3 is in fact > >> irrelevant here. > >> The printer requests cmyk only pdf's, with no rgb images inside it. > >> How can I provide that to him ? > > > > In PDF export> colors> target = printer > > Thanks. This option is greyed out when using pdf/x3 (but shows 'printer').
That's because in PDF/X-3 an image is being included "as is" (RGB recommended, but CMYK is still possible). The conversion happens at the printer, using the embedded colour profile. > When using another type of pdf (1.3 1.4 or 1.5) the prepress option does > not allow to specify the icc profile to be used as intent. Sure. As the caption says: "PDF/X-3 Output Intent". > Will the profile defined in color management for printer be used ? > (I'm using 1.3.7 on ubuntu) Yes. > > How can I check the saved PDF to know which profile have actually been > used ? > Also, how can I check that the saved PDF does indeed only contain CMYK > objects and no RGB ? (Using tools available on linux) By opening the PDF file in a text editor (may take some time, though, depending on the speed of your CPU). HTH, Christoph -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.scribus.info/pipermail/scribus/attachments/20101001/ea3df7da/attachment.htm>
