[NTG-context] Trouble setting PDF boxes

[Jack Steyn]

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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