Offset Printing is a method of printing where a technique is used that spreads ink on a metal plate that is covered in etchings. The ink is then transferred to an intermediary material, such as a rubber blanket or another in-between material that is less permanent than metal but more permanent than paper. Once this step has been fulfilled, the ink is once again transferred, this time to paper by pressing the paper against the middle material.
This method is commonly used to create orders for a lot of high quality documents, such as certificates or high quality brochures. Since special technology is necessary to complete the process, it is cheaper and easier for companies to order their offset printing products from a printing service rather than invest in the ability to print this way themselves.
Also, once the equipment is on site, such as with specialized printing shops, prints can be created quickly and at low cost, meaning you save time and money.