UNDERSTANDING OFFSET PRINTING
Offset is a form of printing where the printed images begin on metal plates and are transferred onto rollers or blankets and then transferred again onto the paper. Standard offset uses sheets that are fed through individually, whereas web offset uses a large roll of paper that is fed continuously through the press.
This kind of printing allows for large-scale print production, with accuracy and efficiency. The use of plates allows for high levels of consistency and quality across the prints.
Check out this video below to see how sheets are fed into the press for standard offset printing!
H/t: WhatIs.com