[NTG-context] Re: Can LMTX help me with this PDF manipulation?

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) Book: Chess and the Art of Enterprise Architecture https://ea.rna.nl/the-book/ Book: Mastering ArchiMate https://ea.rna.nl/the-book-edition-iii/ YouTube Channel http://www.youtube.com/@GerbenWierda

On 30 Jul 2024, at 01:03, Bruce Horrocks wrote:

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On 29 Jul 2024, at 21:59, Gerben Wierda 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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