a sheet combining device includes at least one former , at least one longitudinal cutter , and at least two partial web guide routes . a respective partial sheet of partial cut webs can be conveyed on each of the at least two partial web guide routes . these sheets can be combined to form a principal sheet at an exit of the sheet combining device . a stapler is provided on one of the at least two partial web guide routes and is used to staple the partial sheet which is conveyed on that guide route .