From: Jack Steyn <steynjack@gmail.com>
To: ntg-context@ntg.nl
Subject: Re: Trouble setting PDF boxes
Date: Sun, 26 Apr 2020 02:42:36 +1000 [thread overview]
Message-ID: <CAA=DcJHx5b++uADo_EHvjHEiTyB2CyYyDUmYmhyYr-LEhT3psA@mail.gmail.com> (raw)
In-Reply-To: <CAA=DcJEbQdsU6yFBOBPup2WUk0wYh4_NnXAh79K9kHnvQcdLAw@mail.gmail.com>
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After much searching, my probably laughable attempt consists of combining
the answer to the question at
https://tex.stackexchange.com/questions/433110/setting-page-attributes-of-every-page-in-a-generated-context-file
with
what I can see in the source at
https://source.contextgarden.net/tex/context/base/mkiv/lpdf-mis.lua:
\appendtoks
\startluacode
local formatters = string.formatters
local pdfverbose = lpdf.verbose
local pdfarray = lpdf.array
local factor = number.dimenfactors.bp
local f_value = formatters["\letterpercent.6N"]
local function boxvalue(n)
return pdfverbose(f_value(factor * n))
end
lpdf.addtopageattributes("TrimBox", pdfarray {
boxvalue(30),
boxvalue(30),
boxvalue(180),
boxvalue(267),})
\stopluacode
\to \aftereverypage
This code throws no errors, but unfortunately it also has no effect. What
am I doing wrong?
Jack
On Sat, 25 Apr 2020 at 22:37, Jack Steyn <steynjack@gmail.com> wrote:
> Hi,
>
> I am having trouble setting the PDF boxes to my desired dimensions.
> Suppose I have \setuppapersize[*a*][*b*]. I want CropBox = MediaBox = *b*.
> So far, so good: I can just use cropoffset=0mm in \setuplayout. But I want
> TrimBox = *a*. However, as far as I can see, I can't achieve this using
> trimoffset in \setuplayout unless (width of *b*) – (width of *a*) =
> (height of *b*) – (height of *a*), which does not hold in my case. So it
> looks like I need to find another way to set the TrimBox (and the BleedBox,
> which I want to be 3mm wider and taller than the TrimBox). Does anyone know
> how to do this?
>
> Best,
>
> Jack
>
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next prev parent reply other threads:[~2020-04-25 16:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-25 12:37 Jack Steyn
2020-04-25 16:42 ` Jack Steyn [this message]
2020-04-30 15:51 ` Jack Steyn
2020-04-30 19:44 ` Hans Hagen
2020-05-01 1:55 ` Jack Steyn
2020-04-26 9:46 ` bug in PDF boxes? (was: Re: Trouble setting PDF boxes)) Pablo Rodriguez
2020-04-26 14:43 ` Jack Steyn
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