TOPIC:

Any chance for layer support in the future versions?

what means of layer?
draw somthing over page?
sure, it has. just draw somgthing on canvas in onPageDiaplayed()

With Layers i mean objects that belong to a certain "optional content group".

See the example below, i inserted two optional Layers inside the pdf.
Take a look at line 25, there are the ocg described.

Please see this link for a little bit more information:;
www.verypdf.com/document/pdf-format-reference/pg_0364.htm

Would be great to have the following options fot the Page object:

createLayer(String)
deleteLayer(String)
getLayers()
getLayer(String)
hideLayer()
showLayer()
removeFromLayer()
addToLayer()

What do you think?

OK, this is not named as Layer but optional content
which can be visible or invisible determinated by SDK.
this feature won't be supported in near feature, and not sure will support in furture.