Paperman is an app which calculates the number of reams of paper needed to produce your book. It's a great companion that helps to design and publish books. [Search] Swipe left on the main screen to search for papers. You may browse or calculate the price. [Xray] If you want to know the type of paper used in a book, you can scan the ISBN barcode. Paperman will then provide you with information about the paper. (Paperman supports Ahn Graphics, Sojanggak, Workroom Press and Workroom Specter book