Paper shredder

A paper shredder, comprising a chassis on which an automatic paper feeding opening is defined, a paper shredding mechanism disposed inside the chassis, a paper separating mechanism located adjacent to the automatic paper feeding opening, and a paper pickup mechanism located between the paper separating mechanism and paper shredding mechanism;

• wherein
• the paper separating mechanism includes a first paper supporting board on which a fastening mechanism is provided and a paper separating board cooperating with the fastening mechanism and capable of being fixed onto the first paper supporting board, the first paper supporting board defining together with the paper separating board a paper supporting area for receiving paper sheets to be shredded;
• and
• the paper pickup mechanism includes a holding bracket secured on the chassis, a paper pickup roller axe mounted on the holding bracket, a plurality of paper pickup rollers sleeved on the axe, a second paper supporting board located below the plurality of rollers and secured onto the second paper supporting board, and a third paper supporting board located above a distal end of the second paper supporting board and connected with the paper separating mechanism.