A document shredder (10) includes a housing (12) which has, in a housing wall (18), an insertion slot (22) for inserting sheet material. The insertion slot (22) has a longitudinal extent between two slot ends (32). The shredder further includes a cutting unit which is arranged in the housing (12) and which has motor-driven cutting tools (24) for shredding the sheet material. The insertion slot (22) is widened transversely with respect to the longitudinal extent in at least one end region (38) that is delimited by one of the slot ends (32).