Common working recommendation
Poster (A3)
A3 poster — medium-sized print for events and displays.
- Dimensions
- 297 × 420 mm
- Aspect ratio
- 1:1.414
- Orientation
- portrait
1:1.414
Copy and use
Dimensions
297 × 420Ratio
1:1.414CSS
aspect-ratio: 1 / 1.414;Common uses
- Posters
- Events
- Displays
- Advertising
Source and status
Common working recommendation
No fixed official platform requirement is claimed for this working size.