\setuparranging values for perfect bound A5 on A3?

\setuparranging values for perfect bound A5 on A3?

[Bruce Horrocks via ntg-context]

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. If not, is there a recommended external program that can do it?

I've tried \setuplayout[4*2] and XY with 2x2 but neither output is what I need.

Thanks in advance.

[1] glued spine (if that term isn't used outside the UK)
[2] I'm sure it's actually harder than that. :-)

—
Bruce Horrocks
Hampshire, UK

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Re: \setuparranging values for perfect bound A5 on A3?

[Max Chernoff via ntg-context]

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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Re: \setuparranging values for perfect bound A5 on A3?

[Bruce Horrocks via ntg-context]

> On 9 Oct 2022, at 02:58, Max Chernoff <mseven@telus.net> wrote:
> 
> 
> 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.

Thank-you Max - that is exactly what I wanted and your code worked first time. :)

—
Bruce Horrocks
Hampshire, UK

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___________________________________________________________________________________

Re: \setuparranging values for perfect bound A5 on A3?

[Henning Hraban Ramm via ntg-context]

Am 09.10.22 um 02:29 schrieb Bruce Horrocks via ntg-context:
> 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. If not, is there a recommended external program that can do it?
> 
> I've tried \setuplayout[4*2] and XY with 2x2 but neither output is what I need.

You meant \setuparranging, didn’t you?

https://wiki.contextgarden.net/Imposition
has an example on how to create your own scheme.

Good luck!
Hraban


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maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
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archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : https://contextgarden.net
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