[Openicc] [Gimp-print-devel] [Printing-architecture] Colour

[Leonard Rosenthol]

On Mon, Nov 16, 2009 at 7:43 PM, Chris Murphy <lists at colorremedies.com>wrote:

> PDF 2.0 spec will add explicit BPC (black point compensation) support in
> the file format, which means the ability to set a per object flag for BPC on
> or off. And that should be considered since perceptual and relcol transforms
> aren't ideal for most images, in an ICC v2 context. (In v4, perceptual would
> be the default intent. In v2, relcol + bpc should be the default.)
>
> You may want multiple OutputIntents. Currently all of these specs use just
> one, following a "one PDF, one output device condition" sort of philosophy.
> But it's imaginable having a single print job for a small book and cover,
> where there are different intents for the cover, and the interior stock. Or
> a book that's mostly black and white but with some color image inserts in
> the middle of the book.
>
>
PDF 2.0 (aka ISO 32000-2) also support page-level OutputIntents.



> Anyway, I think in the near term PDF/X-4 along with BPC support make the
> most sense to me.
>
>
A PDF/X-4 viewer will NOT support the BPC keys...

Leonard
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