I just have a question about how to purchase on the platform. What is the measurement of an A5 doc (fifty percent of the A4) on your platform? I need to purchase a double sided flyer. I need to substantiate that "Whole Color" within the again side indicates this? Thanks! https://bookmarkcitizen.com/story19360487/the-smart-trick-of-flyer-printing-that-nobody-is-discussing