[OSGeo-Discuss] Proposal: OSGeo Cartographic Library

[Bruno Lowagie]

Paolo Cavallini wrote:
> All this does not show off in evince, however.

Evince is as they promote it "simply a document viewer."
It's not a full blown PDF viewer (well, maybe it is for
most users, but for me as an avid PDF user it isn't).
Evince doesn't support all the features that are explained
in the PDF Reference manual. OCG was introduced in PDF 1.5
(dating back from 2003). You will see the OCG layers in
Adobe Reader starting with version 6.0.
br,
Bruno