Hi David,
On Jul 15, 2016, at 4:47 PM, David Carlisle
<d.p.carli...@gmail.com<mailto:d.p.carli...@gmail.com>> wrote:
Is there a mechanism similar to \hypersetup that allows the options to be
changed
*after* the package has been loaded?
Not really, although the actual setting is in \AtBeginDocument{\AtBeginDVI so
as long
as you set the relevant registers to the right value it'll get set up (but let
me know if you need more hooks)
No, I don’t need any more hooks.
A previous message explained why.
There is a very minor issue, as follows.
PDF/X generally requires CMYK color space, whereas PDF/A and PDF/E usually use
RGB colors.
If one specifies \pagecolor{yellow} say, then it will use whatever color
space was stated
when ‘yellow’ was defined as a color.
This would lead to a validation problem if it wasn’t the same space as the PDF
type requires.
The “fix” for this is to use the xcolor package, and force conversions into
the right color space.
Thank you for writing this, so many years ago!
Currently pdfx.sty force loads xcolor for PDF/X.
For some reason the command with PDF/A was commented-out, so that xcolor would
be loaded
only if requested by the document author, as per usual.
(I must have been testing something and didn’t uncomment it before releasing
the package;
or maybe I thought more tests were needed, and just forgot about it.)
I do, however, put in a check that prevents the author from using the wrong
color space.
The next version of pdfx.sty will force loading of xcolor in all
situations, since there’s
no easy way of knowing what or when the author might request colours.
What is the issue?
xcolor can be very noisy:
viz.
Package xcolor Warning: Incompatible color definition on input line 3993.
[48]][48
Package xcolor Warning: Incompatible color definition on input line 4027.
Package xcolor Warning: Incompatible color definition on input line 4101.
Package xcolor Warning: Incompatible color definition on input line 4115.
[49]][49
That's 3 warnings per page.
Fortunately the final result is fine, passing validation.
xcolor has an option hideerrors but this doesn’t suppress these warnings.
Cheers
Ross
Dr Ross Moore
Mathematics Dept | Level 2, S2.638 AHH
Macquarie University, NSW 2109, Australia
T: +61 2 9850 8955 | F: +61 2 9850 8114<tel:%2B61%202%209850%209695>
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