On 11/16/2014 9:52 PM, Wolfgang Schuster wrote:
Am 16.11.2014 um 20:47 schrieb Christoph Reller
<christoph.rel...@gmail.com <mailto:christoph.rel...@gmail.com>>:
Hi,
Has ConTeXt any support for producing a PDF with "optional content
groups" (OCGs)?
In Adobe's jargon OCGs are also known as "layers" (not to confuse with
layers in ConTeXt). See Section "4.10.2 Making Graphical Content
Optional" in the PDF Reference 1.7 available at
http://wwwimages.adobe.com/content/dam/Adobe/en/devnet/pdf/pdfs/pdf_reference_1-7.pdf
I cannot find anything on the Wiki nor in the ntg-context emails and
grepping through the source code for "ocg" does not give reasonable
results.
You have to look for \defineviewerlayer and \startviewerlayer.
A quick test if your pdf viewer supports is is:
\showlayoutcomponents
\starttext
\input tufte
\stoptext
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