Actually I Do Not Know What is Passive Voice. Sorry.....!!!!!!!!

Modern paper from a mixture of various fibers is manufactured by people including wood, grass and cotton. When the logs arrive at the factory, the bark is removed by the workers. The wood is fed into a mill in order to grind it to a pulp by them. A great deal of water and various vegetable fibers is added by the workers at this stage. The pulp is bleached and then beated to break down still further by them. The glue and resin is mixed with the pulp by them so that they obtain a better consistency. Next, it is poured on the wire screens and it is rolled with the purpose of removing the water. Then, it is pressed and watermarked by the workers. Subsequently, it is dried and glazed by them as to obtain a smooth finish. Finally, it is reeled on to long rollers and cut to size by them.