Abstract: A method and a device for automatically arranging individual paper sheets in a set of papers with the edges of said paper sheets in alignment with each other in combination with stapling said set of papers. A set of papers having unaligned edges is positioned on a lower edge of a vibrating table and the papers are joggled so that one edge of the paper sheets in the set of papers become aligned. The set of papers is thereafter urged against a lateral edge of the table while being vibrated, whereby all edges of the paper sheets become evenly aligned. In this final phase a stapler staples the set of papers together.