紙張大小, A3, A4, F4? (Paper Size, A3, A4, F4?)

A3: 297 × 420 mm 11.69 × 16.54 in
A4: 210 × 297 mm 8.27 × 11.69 in
F4: 210 × 330 mm 8.3 × 13.0 in
Letter: 215.9 × 279.4 mm 8.5 × 11 in