Thank you.
Regarding transparency (clipping I fully am convinced that is doable, just
wondering how), I looked at that but
{\starttransparent[tnormal]\externalfigure[cow.pdf][width=9cm]\stoptransparent}
makes the entire PDF transparent, not just one colour inside that PDF.
Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>, Mastodon
<https://newsie.social/@gctwnl>)
R&A IT Strategy <https://ea.rna.nl/> (main site)
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YouTube Channel <http://www.youtube.com/@GerbenWierda>
> On 30 Jul 2024, at 01:03, Bruce Horrocks <n...@scorecrow.com> wrote:
>
>
>
>> On 29 Jul 2024, at 21:59, Gerben Wierda <gerben.wie...@rna.nl> wrote:
>>
>> I have a large PDF with mostly vector and a bit of pixel graphics. It is in
>> two colours only (the pixels are either one colour or the other, no
>> dithering). I want to create a new PDF of a segment of the larger PDF
>> (bottom left corner), where vector is maximally preserved, and where one
>> colour is replaced by 100% transparency.
>>
>> I was wondering if that is doable by using LMTX instead of trying to do this
>> with some GUI app.
>
> I would start with \clip & \setupclipping to obtain the segment, and
> \definetransparency to set one of the colours to be transparent.
> <https://wiki.contextgarden.net/Transparency>
>
> —
> Bruce Horrocks
> Hampshire, UK
>
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