A3 Size

The A3 paper size is commonly used both in the business industry and at home. It measures at 297 x 420 mm and is a great alternative when you are showcasing presentations, charts, and enlargements. It is a popular and cost-efficient option because it is easy to produce in bulk at a low cost. Aside from A0, A1, and A2 formats, the A3 paper size offers enough space for you to create a stunning visual that will surely pique your target audience’s interest.

A3 dimensions in Millimetres, Centimetres and Inches

Paper format: A3
Dimensions in milimeters: 297 x 420 mm
Dimensions in Centimeters: 29.7 x 42 cm
Dimensions in Inches: 11.7 x 16.5 in

A3 sheets have a big enough surface for you to incorporate all your design ideas. This feature also makes it an ideal choice if you want to include information about your brand without being restricted by space. You can also use this format size to display your family pictures at home. For example, we offer photo posters which are available in A3 paper size. Just upload your picture online after placing your order and we can print your pictures on our 190 gsm special paper and deliver it to you in a short period.

On the other hand, you can also use A3 to spread details about an upcoming event to your target market. This can be in the form of flyers coupled with a minimalist design and few but bolder texts for crisp and concise messages. You can also simply hang them on walls and bulletin boards without being obstructive.

Another way you can use the A3 format is when you are trying to make a presentation which contains various large tables or diagrams. In fact, you can distribute this paper format around the table for added convenience to your attendees. By using this paper size, you will be able to demonstrate your ideas much clearer to your target audience.

Printing resolution for A3

The resolution needed to print A3 size images with the best quality is 297 x 420 mm at 300 ppi (pixels per inch). Please do note that you would still have to add a bleed of 3 mm on all sides of your design, to ensure you receive your printed products exactly as you expected. InDesign has a tool with which you can easily add bleed to your designs, but in Photoshop you will have to add bleed manually. Not sure if you added bleed the right way? Check our free templates on the product page of the product you’re ordering!