On 30 Aug 2017, at 15:31, Robert Brenstein via use-livecode wrote:
The stack is used to produce a PDF file and the printing shop
A slight aside – please forgive me.
I teach publishing and have worked in the print industry (among others)
since the 1980s. It's now the norm for printers to accept PDFs with
embedded RGB images and do the colour conversion to CMYK in the final
RIP stage as it's printed. This means that the actual conversion is done
with settings that are most appropriate to the actual print method and
device, not a generic 'make it CMYK' process. I've seen print projects
go expensively wrong because of inappropriate CMYK conversion settings.
This is often known as an RGB workflow – although 'Hybrid workflow' is
more accurate, as it's just imported images that are left in their
native colour model; colour swatches should still be specified using the
colour model of the intended output process.
Having said this, the bottom line is always "ask your printer and follow
their advice," not least because if something goes wrong with the colour
repro they can't blame you. ;)
Senior Lecturer, LCC (University of the Arts London)
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