2011/1/11 Procházka Lukáš Ing. - Pontex s. r. o. <l...@pontex.cz>:
> Hello,
>
> I'm trying to handle a special problem. I guess ConTeXt would be useful for
> this purpose, although its primary function is to typeset. But -
>
> I have many drawings - they are black-and-white one-sided PDFs of A1 or A2
> size (typical technical drawings).
>
> The bottom right area of size 210 x 330 mm should be "deleted" - or
> over-painted by a white rectangle (or picture or MP code).
>
> And next a new PDF of A4 size should be placed on the right bottom area,
> just on the white ("deleting") area.
>
> I wouldn't have problem with batch processing the number of files.
>
> But I would need an example how to take the original A2 PDF, place a
> whitening area on it and then to place a new PDF over it; I'm not
> experienced enough in "layering" with ConTeXt and I guess this may be the
> way.
>
> Would it be possible to provide a small example of such processing an
> arbitrary file?
I always use this as starting point
http://wiki.contextgarden.net/Layers
--
luigi
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