Paper size standards govern the size of sheets of paper used as writing paper, stationery, cards, and for some printed documents.
Paper size - Wikipedia
Dimensions of the A series paper sizes 4A0, 2A0, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9 and A10 width and height in inches (in), millimetres (mm), centimetres ...
A Paper Sizes - A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10
You may have heard of A3 and A4 paper, and A3+/A4+ are just slightly oversized versions ... You are here: Home › Education › Paper Size Guide: A3+ & A4+
Paper Size Guide: A3+ & A4+ | Printerland