A1 vs A2 Poster Size: Which Should You Choose?
· Printing Central UK
Choosing between A1 and A2 poster sizes comes down to viewing distance, available display space and how much impact you need. This guide gives you the practical answer in under five minutes.
Best for shop windows, exhibitions, events and displays that need to be seen from further away.
Ideal for notices, menus, promotions and displays that will be viewed at closer range.
A1 vs A2 poster size at a glance
| Feature | A1 Poster | A2 Poster |
|---|---|---|
| Dimensions | 594 × 841 mm | 420 × 594 mm |
| Viewing distance | Medium to long | Close to medium |
| Best for | Shop windows, exhibitions, events | Notices, menus, indoor promotions |
| Visual impact | Higher | More compact |
Choose A1 when visibility matters most. Choose A2 when space is tighter or people will be standing closer to the poster.
What size is an A1 poster?
An A1 poster measures 594 × 841 mm. Its larger format gives you room for a strong headline, striking imagery and a clear call to action without making the layout feel cramped.
It works particularly well in shop windows, corridors, exhibition spaces, reception areas and event venues where the message needs to be noticed quickly.
What size is an A2 poster?
An A2 poster measures 420 × 594 mm. It is exactly half the area of A1 and is a practical choice for spaces where the customer will be standing closer to the display.
A2 is commonly used for menus, notices, promotions, event information and secondary shop-window messaging.
Which is better for a shop window?
For most shop windows, A1 is the better choice because it can be read more easily from the pavement. A2 makes more sense for smaller windows, secondary offers or when you want to display several posters side by side.
Headline offers
Window promotions
Event advertising
Menus
Notices
Multi-poster displays
Is A1 twice the size of A2?
Yes. In the ISO A-series paper system, every size is half the area of the size above it. One A1 sheet therefore has the same total area as two A2 sheets.
What resolution do I need for poster printing?
For sharp results, supply your artwork at the final print size with sufficient resolution. A high-quality PDF is usually the safest format because it preserves text and vector graphics cleanly.
Before ordering, check our print artwork guide for file setup, bleed and resolution advice.
Need another poster size?
Printing Central also offers A0 posters, A3 posters, A4 posters and custom size poster printing.
Order your poster online
Choose your size, upload your artwork and order online with fast UK dispatch from Printing Central.
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