Paper Sizes
There are actually many paper sizes used in different countries. The international ISO standard sizes have become more popular compared to other standards. However, each country can determine which standard they will use.
paper size
A3 Paper Size
The A3 paper size is one of the ISO paper standards used in Europe and other parts of the world. The A3 paper is also now supported by most printer and computer software programs. Get the facts about the A3 paper sizes and how they compare with other sizes.