What is the MkIV/LuaTeX way to set the CropBox?
In MkII/PDFTeX, I used
\pdfpagesattr = {/CropBox [54 72 558 720]}
With MkIV, I've tried
\pdfcompresslevel 0
\pdfbackendsetpagesattribute{CropBox}{[54 72 558 720]}
\starttext
\input knuth
\stoptext
but that set the CropBox as a string, and didn't override the A4 setting:
<</Type/Pages /CropBox ([54 72 558 720])/Count 1/Kids[16 0 R]>>
I also tried
\pdfcompresslevel 0
\startluacode
local box = lpdf.array{54, 72, 558, 720}
lpdf.addtopagesattributes("CropBox",box)
\stopluacode
\starttext
\input knuth
\stoptext
and that produced an improved line in the Pages object:
<</Type/Pages /CropBox [ 54 72 558 720 ]/Count 1/Kids[16 0 R]>>
but the actual cropbox for the page is unchanged (A4), probably because
the page object itself (object #16) overrides the CropBox with this:
/CropBox [ 0.0000 0.0000 595.2756 841.8898 ]
(This is all with the 2014.02.14 beta.)
Regards,
-Sanjoy
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