What's the default state of the 'include preview in document by default' option in KeyNote?

I'm a Linux user, and trying to figure out if Apple Keynote documents include a PDF preview by default. I don't have easy ac开发者_开发知识库cess to a Mac with iWork, so I can't really tell by myself.

I just checked and it's not checked by default in my Keynote when I try to save a file. Hope that helps :)