what size is a2
A2 Paper Size. A2 format is the third largest A paper. It was standardized by ISO 216 at its inception in 1975, even if the A sizes were first issued by the DIN (Deutsches Institut fuer FÃ¼r, Normung German institute Of) standards in. 19222 Paper Size. A2 format is the third largest A paper. It was standardized by ISO 216 at its inception in 1975, even if the A sizes were first issued by the DIN (Deutsches Institut fuer FÃ¼r, Normung German institute Of) standards in. 1922