I can't seem to get a PDF generated of an ible I am working on, but not published yet.  Is this possible?

I've tried both custom and default PDF options.

Reason: I'd like to share with local group, but still add to the ible before publishing for the Instructables community.

Should I publish as a private ible, then switch to a public ible at a later date? (Is that possible and will that allow me to download the PDF?)