Everything you need to know about A3 document printing

There are a number of different paper sizes to consider for document printing. Whilst A4 is considered the standard size, A3 document printing has become increasingly popular. Measuring 297 x 420mm, it is more commonly used in businesses and at home for posters and promotions, as well as presentations, including display charts and enlargements. Here is everything you need to know about A3 document printing:

Format and dimensions

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

Double the size of an A4 document, it is easy to product in bulk at a low cost, making it a popular and cost-effective choice. Many business printers hold the capacity of A3 paper printing, so there is no need to purchase extra equipment to use it. The additional space offers up more room to create clearer and more inviting visuals for the audience.

Printing resolution for A3

As with any document, A3 paper printing requires images to be of the best quality to fit the document size. At 297 x 420mm, a minimum of 300dpi is required. If you are looking to fill the full A3 document, you will need to ensure you have a 3mm bleed on all sides.

If you need help with adding bleed or any other advice to do with your A3 paper printing needs, take a look at our Artwork Guidelines or gives us a call on: 020 8875 0332. We at Yellow Print, will be more than happy to help.

When to use A3 for printing

If you’re looking to include more information about your brand without feeling restricted on space, A3 document printing is the ideal choice.

A3 posters are used both at home and in the office. From a simple photo to promoting an event or product, A3 posters are the perfect choice to engage your target audience without being too invasive. You simply hang on walls or notice boards and attract attention by being in the person’s eyeline, without being offensive or obstructive to the observer.

At Yellow Print we offer indoor and outdoor poster options. Our indoor posters are printing on high resolution photo printers to give best results and vivid colours. We offer Matt posters for a more natural look; printing on 180gsm matt photo paper. As well as Satin posters; printed on coated satin photo paper for a much more vivid look.

Presentations are another ideal choice for A3 document printing. If you’re trying to engage a new client or display a new project to an existing client, A3 paper printing allows visuals to really stand out. Tables and diagrams have more space to breath and the whole project is given more gravitas with the additional room on the page.

Even if the project you are presenting is smaller than A3, the white space around the imagery gives it a cleaner look and makes it easier to present your ideas to your target audience.  The A3 document size is also much easier to pass around the presentation room for the whole audience to clearly see the visuals. 

At Yellow Print, our Document printing paper options range from 80gsm plain paper to 300gsm card, are available in black and white, or colour; and there are no minimum quantities for A3 document printing, so whatever your requirements, we are here to help! 


At Yellow Print we offer a good range of Document Printing and Posters and Wide Format printing options. All our A3 posters and A3 document printing can be printed and ready on the same day if you are in a rush; available for collection from our Southfields store, or with same-day delivery within London. We also offer next-day delivered anywhere in the UK as well as standard delivery.

We are proud to serve our local community with a high reputation for fast turnaround of job, understanding the brief and eye for detail that is so important in the world of print. So, if you are in the market for some new A3 posters, we’ll be happy to help!

Give us a call on: 020 8875 0332 or email us: info@yellowprint.co.uk.


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