寸法・座標系の件

↓A3横(Windowsビットマップ)

(0, 0)
+--------------+ → +x
|              |
| A3 Landscape |
|              |
+--------------+ (3309, 2339)
↓ +y

↓A3横(PDF)

(0, 842.357361)

↑ +y
+--------------+ (1191.68909, 842.357361)
|              |
| A3 Landscape |
|              |
+--------------+ → +x (1191.68909, 0)
(0, 0)

rectangle について
[ llx lly urx ury ]
[ lower-left x, lower-left y, upper-right x, upper-right-y ]
[ left bottom right top ]