[NTG-context] Zoom image in presentation

Roger Mason rmason at mun.ca
Mon Nov 7 11:58:11 CET 2011

Hello all,

I'd like to be able to zoom an image during a presentation.  My thinking
is that it might be possible by turning layers on and off interactively.
I see in this message:


that Hans said (enigmatically :-)) "And then there are viewerlayers
(acrobat) that you can turn on and off with
\goto{On}[VideLayer{mylayer}] but that's a different topic."

Any hints on how I could do this?

I'm using the latest standalone, installed yesterday.


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