multiple layer -> multiple page PDF export

Hi-

I have a OG doc with 5 layers.  I'd like to export each layer as its own page in a single PDF (i.e. a 5 page PDF).  

I'm comparing five maps of an area covering about 9 city blocks spanning a period of 150 years. With each PDF page a specific year, one could flip between pages and the content of each year would be aligned, making it easy to compare and contrast changes. 

Is this possible? I believe canvases export this way, but I don't believe layers do.  Sorry if I'm missing something obvious.  

On a slightly different note, dynamic layer manipulation in iPadGraffle would be ridiculously cool.  Say you had layer control bar on the bottom of the iPad window. Tap a layer icon to show/hide, tap-slide to change opacity. Oh, man, I can't wait -- this is like Christmas.

-John