Print Flat greeting cards from PrintMagic and are cheaper but give you half the space of their folded counterpart. If the goal, however, It is just and to share photos or artwork, Print flat greeting cards isn’t a bad option. In fact, most flat greeting cards are utilized this way. Another advantage is also being able to mail it as you would a postcard that also saves you from and by having to buy envelopes. Some entrepreneurs also hand them out as giveaways and when running promotions.