How does ADE test whether virtual printing is disabled?
I have an EPUB3 book that I want to convert to PDF so I can read it on my Kindle 3. I thought converting it in Calibre would make it printable. However, when I try to send the converted file to Acrobat it reports back, "Virtual printing is not allowed".
How does it know? The tag must be on the ebook, right? Is it possible to edit the book so that I'll be able to print it to PDF?