Each is half the area of the one before, ie A4 paper (297 mm × 210 mm) is half the size of A3 paper (297 mm × 420 mm).

The best A3 printers are the perfect choice for handling larger prints, like promo displays and posters. Any of the best printers can print on letter, legal and A4-size paper, but what if you need ...

Developed in the 1940s, it was a concept based on the A3 sheet of paper, which is 11 by 17 inches in size, at the time, the biggest size of paper used in a photocopying machine. The idea was that ...