Viewer Layers
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< Layers | Visuals | Presentations >
PDF has a concept of layers that you can enable and disable (at least in a few viewers). This has nothing to do with ConTeXt’s Layers.
There’s no other documentation yet, maybe have a look into the source attr-lay.mkiv.
\defineviewerlayer[Plane] \setupviewerlayer[Plane][ state=start, visible=no, % initially title=Test, %tag=, % don’t know? editable=yes, % in Acrobat Pro? printable=yes, export=yes, % exportable in xml? scope=global, % or local ] \starttext \input tufte \startviewerlayer[Plane] {\bfa TOP SECRET} This information is on a different plane of existence. \stopviewerlayer \input knuth \stoptext