From: Max Chernoff via ntg-context <ntg-context@ntg.nl>
To: ntg-context@ntg.nl
Cc: Max Chernoff <mseven@telus.net>
Subject: Re: \setuparranging values for perfect bound A5 on A3?
Date: Sat, 08 Oct 2022 19:58:09 -0600 [thread overview]
Message-ID: <ca9a5bbc4795a45e9210ddf4c37a6303a9aec04b.camel@telus.net> (raw)
In-Reply-To: <273794F1-B9A6-47FF-8E63-42CD4F1388DC@scorecrow.com>
Hi Bruce,
> I have a book to be perfect bound[1] and I'm trying to work out what
> imposition to use.
>
> The printer would like 4 A5 pages laid out on A3 e.g.
>
> +---+---+
> | | |
> | a | b |
> | | |
> +---+---+
> | | |
> | c | d |
> | | |
> +---+---+
>
> so that he can cut the paper and simply stack a, b, c, & d on top of
> each other and then put them in the binding machine[2].
>
> If the book is 40 pages long, say, then stack 'a' has page 1 on the
> top, page 2 on the reverse, then the next sheet has page 3 and 4, and
> so on down to the last sheet which has page 9 on the front and page 10
> on the back. Stack 'b' would have page 11 on the front, 12 on the back
> and so on, so that each stack has a quarter of the book.
>
> Is this something LMTX can do and if so what combination of
> \setuplayout and \setuppaper do I need to use? If they can be printed
> in reverse order then great but I assume the printer can do that
> fairly easily.
I don't think that there's any way to do this from within a document
run, so I think that you'll need to use an external program.
> If not, is there a recommended external program that can do it?
But, you can use ConTeXt as the external program here.
Save as "imposition.cld":
local filename = document.getargument("filename")
local pdf = lpdf.epdf.image.open(filename)
local pages = pdf.nofpages
local max = math.ceil(pages / 4)
context.setuppapersize({ "A5" }, { "A3" })
context.setuppaper { nx = 2, ny = 2 }
context.setuparranging { "XY" }
local function insert_page(n)
context.startpagemakeup()
context.filterpages({ filename }, { n })
context.stoppagemakeup()
end
context.starttext()
for i = 1, max do
if i % 2 == 1 then
insert_page(i + 0 * max)
insert_page(i + 1 * max)
insert_page(i + 2 * max)
insert_page(i + 3 * max)
else
insert_page(i + 1 * max)
insert_page(i + 0 * max)
insert_page(i + 3 * max)
insert_page(i + 2 * max)
end
end
context.stoptext()
Then run:
context imposition.cld --filename=document.pdf
where "document.pdf" is replaced by your document name.
I'm not sure if I got your desired output quite right here, but
hopefully you can easily modify the script if something isn't quite
right.
Thanks,
-- Max
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next prev parent reply other threads:[~2022-10-09 1:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-09 0:29 Bruce Horrocks via ntg-context
2022-10-09 1:58 ` Max Chernoff via ntg-context [this message]
2022-10-09 18:24 ` Bruce Horrocks via ntg-context
2022-10-09 8:35 ` Henning Hraban Ramm via ntg-context
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