The process of offset printing can be a little intimidating.this guide to help you understand the printing process from A to Z A SIZES One of the series of standard paper sizes, usually used to define the finished size of printed items. For example, the majority of letterheads are termed A4 (297 x210mm). Click here for a full list of paper sizes ART PAPER Paper which has received a coating to give it a smooth finish - either gloss, matt or silk. A generic classification to differentiate from unc [...]