Offset, rubber plate is used to print image and text on paper medium or other printed surface material. Oil and water are attached to the royal rubber plate and it is allowed to settle on the areas of the image which should be printed in the print surface medium. There is no desire to print those areas, the result is that the areas covered in the water film are not printed and remain empty.
Transfer them to the catalogues printing Singapore from the ink in those areas of rubber roller, present the image and text on the finished product. Home printers that no one has already finished the digital printing, understand how lithography works, all intermediate steps are included in order to offset a very cheap alternative.