Re: [NTG-context] Trouble setting PDF boxes
Hi Hans, using that produces a pdf which fails compliance with PDF/X-1a as the BleedBox is not set. But notice that if it did work, the sizes of TrimBox and BleedBox would be based off printpaperwidth and printpaperheight. I need them to be based off paperwidth and paperheight (for my documents all have printpaperwidth – paperwidth ≠ printpaperheight – paperheight). (Apologies, I initially replied to just you and not the list as well.) On Fri, 1 May 2020 at 05:44, Hans Hagen wrote: > On 4/30/2020 5:51 PM, Jack Steyn wrote: > > Hello, I'm happy to report that I got this working after much trawling > > through the source and documentation. The code below produces a pdf with > > the MediaBox, CropBox, BleedBox and TrimBox all in the places I > > specified in my original message. I hope it helps illustrate how to set > > these PDF boxes using Lua. I would much appreciate any feedback on how > > the Lua code can be cleaned up or made more flexible (the bleed is > > hard-coded in because I didn't know how to obtain the user-specified > > bleedoffset, for example), or made better in any other way. > can you try this > > \setuplayout >[cropoffset=30pt, > bleedoffset=20pt, > trimoffset=10pt] > > \setupinteractionscreen >[width=max,height=max] > > - >Hans Hagen | PRAGMA ADE >Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > - > ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] Trouble setting PDF boxes
On 4/30/2020 5:51 PM, Jack Steyn wrote: Hello, I'm happy to report that I got this working after much trawling through the source and documentation. The code below produces a pdf with the MediaBox, CropBox, BleedBox and TrimBox all in the places I specified in my original message. I hope it helps illustrate how to set these PDF boxes using Lua. I would much appreciate any feedback on how the Lua code can be cleaned up or made more flexible (the bleed is hard-coded in because I didn't know how to obtain the user-specified bleedoffset, for example), or made better in any other way. can you try this \setuplayout [cropoffset=30pt, bleedoffset=20pt, trimoffset=10pt] \setupinteractionscreen [width=max,height=max] - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] Trouble setting PDF boxes
Hello, I'm happy to report that I got this working after much trawling
through the source and documentation. The code below produces a pdf with
the MediaBox, CropBox, BleedBox and TrimBox all in the places I specified
in my original message. I hope it helps illustrate how to set these PDF
boxes using Lua. I would much appreciate any feedback on how the Lua code
can be cleaned up or made more flexible (the bleed is hard-coded in because
I didn't know how to obtain the user-specified bleedoffset, for example),
or made better in any other way.
Jack
\setuppapersize[A5][A4]
\setuplayout[location=middle, marking=on]
\setupinteraction
[title={TestDoc},
author={Anon}]
\setupbackend
[format=PDF/X-1a:2003,
intent={ISO Coated v2 300\letterpercent\space (ECI)}]
\setupinteractionscreen[width=max,height=max]
\startluacode
moduledata.mystuff={}
respecify_pdf_boxes = function()
local pdfverbose = lpdf.verbose
local factor = number.dimenfactors.bp
local f_value = string.formatters["\letterpercent.6N"]
local function boxvalue(n)
return pdfverbose(f_value(factor * n))
end
local paperwidth = tex.dimen.printpaperwidth
local paperheight = tex.dimen.printpaperheight
local pagewidth = tex.dimen.paperwidth
local pageheight = tex.dimen.paperheight
local bleedoffset = 3 / number.dimenfactors.mm
local pdfarray = lpdf.array
lpdf.addtopageattributes("MediaBox", pdfarray {
boxvalue(0),
boxvalue(0),
boxvalue(paperwidth),
boxvalue(paperheight),})
lpdf.addtopageattributes("CropBox", pdfarray {
boxvalue(0),
boxvalue(0),
boxvalue(paperwidth),
boxvalue(paperheight),})
lpdf.addtopageattributes("TrimBox", pdfarray {
boxvalue((paperwidth - pagewidth) / 2),
boxvalue((paperheight - pageheight) / 2),
boxvalue((paperwidth + pagewidth) / 2),
boxvalue((paperheight + pageheight) / 2),})
lpdf.addtopageattributes("BleedBox", pdfarray {
boxvalue((paperwidth - pagewidth) / 2 - bleedoffset),
boxvalue((paperheight - pageheight) / 2 - bleedoffset),
boxvalue((paperwidth + pagewidth) / 2 + bleedoffset),
boxvalue((paperheight + pageheight) / 2 + bleedoffset),})
end
moduledata.mystuff.respecify_pdf_boxes = respecify_pdf_boxes
lpdf.registerpagefinalizer(moduledata.mystuff.respecify_pdf_boxes,
"respecify pdf boxes")
\stopluacode
\starttext
test
\stoptext
On Sun, 26 Apr 2020 at 02:42, Jack Steyn wrote:
> 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 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
>>
>
___
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___
Re: [NTG-context] Trouble setting PDF boxes
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 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
>
___
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___
[NTG-context] Trouble setting PDF boxes
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 ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
