What photo size do I need to print on a poster?

Printing out a poster that looks great takes a large enough resolution image with enough dots per inch (dpi) to make it look good. What you basically need is a high-resolution photo, or vector, so that your poster print won't turn out like a pixillated 8-bit character from a 1980s video game. Check out all the standard photo sizes for your visuals for more details.

www.canva.com image resizing
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Designing a poster is super easy with tools like Adobe Creative Cloud Express or Canva, and if you have doubts over which one to choose, our complete Adobe Express vs Canva comparison will help you decide!

So where exactly is the sweet spot resolution for printing a poster? At least 300dpi, or by using a vector file. And where can you get the best deal on vectors and high-resolution stock photos? With a Stock Photo Secrets 99club subscription.

For $99 you get 200 XXL images that allow you to confidently print a poster all the way up to A3 size at 300dpi, or up to 6’ x 6’ at 72dpi, and includes royalty-free stock photos, vectors, and fonts. Read the Stock Photo Secrets’ 99club Review here. 

Here’s what’s included with a 99club subscription:

  • Access to over 4,000,000 premium stock images
  • Includes High Res Photos, Vectors & Fonts (no Videos)
  • 200 XXL downloads each year
  • Royalty-Free License
  • Use your images FOREVER
  • Subscription is only $99 with NO additional fees!
  • NEW: Auto-renew: secure the low price deal for as long as the offer exists

Learn more about the 99club subscription here. 

Do you want to know where else you can buy large images? Then check out our latest recommendations to find the best large stock photos.

Are you looking for illustrations to create an eye-catching poster? Make sure to read our guide to the best stock illustrations!

VISME FREE TRIAL – Free Poster Templates

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If you want to design beautiful posters in no time, you should check out Visme. It's a user-friendly design tool that includes a rich collection of templates for all purposes, including posters.
The Visme Free Trial is unrestricted, in the sense you can sign up and design as much as you want, for as long as you want, free of charge.
You are only required to pay if you want to download a design made on Visme. In which case you have a couple very affordable plans to choose from. Try it out!

Special Poster Printing Considerations

low resolution pixelated vs high resolution image

Standard marketing pieces like brochures, business cards, stationery, and flyers require a fairly standard photo size, which doesn't really require any special considerations when printing. However, as you get into larger formats like posters, you have to have a high enough resolution to be able to print a big poster.


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There are 3 common poster sizes, which include an A2 (42.0 x 59.4 cm), an A3 (29.7 x 42.0 cm), and an A4 (21.0 x 29.7 cm) poster size. All these poster sizes are quite easily met when using a vector file from 99club, and you can print up to A3 size with 300dpi without worrying.

If you’re unfamiliar with what a vector is, it’s essentially a series of mathematical expressions or paths which are not pixels, so instead is an array of pixels of various colors that can be blown up to huge proportions like billboard size. Using Vector Magic to Create Vector Images

The special considerations you need to meet for printing a poster is having a high-resolution image of at least 300dpi or by using a vector image.

99club homepage

See what kind of vectors you can buy with a 99club subscription.

One of the best software tools to design posters, carefully adjusting resolution and print settings, is Adobe Photoshop. This pro-graded app grants you the best results! And the great news is that you can try it out for free: the Adobe Photoshop free trial gives you full access to the tool, for one week, completely free of charge. Don't miss it!
www.adobe.com photoshop

Want to design beautiful posters that pop out of the paper and catch everyone's attention? You can learn how to use Photoshop to do just that, in this cool course for poster designing in Photoshop!

Knowing Your Sizes and Pixels

When planning for a large format such as a poster you need to know what size you’ll need. Having 200 to 300 pixels per inch is a general rule of thumb for print. For a 20″x30″ poster, that would put your starting size at 4000 x 6000 pixels, or about 24 megapixels. However, for this size and larger, you could still achieve sharp results by going with 150 pixels per inch (PPI) or even 100 PPI. This will give you some leeway, but you do not want to go any less than 2000 x 3000 pixels. Purchasing the largest size will always guarantee a nice sharp image for your project.

If the image(s) you find for your project is smaller than the minimum size of 2000 x 3000 pixels, you could consider purchasing several large images to make up the size of the poster. By using several photos on your project, you could design a collage or grid pattern of images on your poster. This may also help to convey your message in a very engaging way.

Do you have the perfect image for your design but it's too small? Problem solved with our cool new AI Image Upscaler that turns your small photos into super high resolution with just one click. Discover it, and enjoy 10 free upscales!
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Where Can I Find Large Enough Images For My Poster?


You are in luck. Most of the stock photo agencies sell very large images at great prices, and Stock Photo Secrets 99club subscription, in particular, gives you access to high-resolution stock photos and vectors that will allow you to easily print posters and billboards.

Skip trying to figure out how to take your own large-format photo and leave it to the photographers that have already done this for you. By utilizing stock agencies such as Stock Photo Secrets you can feel confident with your purchase of large files. The royalty-free images you purchase can stretch a long way for all mediums of your project. Along with your poster, the image can be used in all of your subsequent formats in your campaign.

99club Price Breakdown


Our 99club subscription is incredibly cheap and gives you access to every single stock image available on the Stock Photo Secrets Shop. For an easier look at how much 99club is going to save you, in the long run, check out our price breakdown below.

  • For $99 USD you get 200 XXL stock photos, vectors, and fonts (Cost per image is $0.49)
  • if you happen to download more than 200 you can buy additional image packs of 50 for $49 ($0.98 per image); or 100 for $69. ($0.69 per image
  • You can buy as many additional image packs as you’d like
  • You can renew your 99club membership after one year at the same price ($99)
  • Stock Photo Secrets current members and new ones can both purchase a 99club membership

Why You Need Stock Photos To Print Posters

Knowing how to print posters or something as large as a billboard, can seem quite daunting to anybody really, especially if you don’t know much about printing and resolution in the first place. But all that guesswork can be taken away by simply using high-resolution stock images from a stock photo agency.

How can I get a higher resolution of an image?

In order to make sure your print will turn out beautifully, you can put your faith into a stock photo agency that has XXL large images. You can easily print posters out and as big as a billboard with a 99club subscription that will give you 200 XXL (from A3 size at 300dpi, up to 6’ x 6’ at 72dpi) stock photos, vectors, and fonts that you can use to make your posters look great.

Running the risk of an image being too small for your print needs will not only cost you money, but it will also take up a lot of time in figuring out how to get the right size. But stock photo agency’s like Stock Photo Secrets allows you to download all our images in the largest, XXL size for every image download you make.

Click here to buy a 99club subscription, and get 200 XXL images for only $99! 

Amos Struck

Amos Struck

I am a publisher and entrepreneur in the stock imagery field. I focus on providing knowledge and solutions for buyers, contributors and agencies, aiming at contributing to the growth and development of the industry. I am the founder and editor of Stock Photo Press, one of the largest networks of online magazines in the industry. I am the founder of Microstock Expo, the only conference dedicated to the microstock segment. I created several software solutions in stock photography like WordPress plugins. Plus I am a recurrent speaker at Photokina Official Stage, and an industry consultant at StockPhotoInsight. I am passionate about technology, marketing and visual imagery.

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    Thirst» Blog Archive » photo size print June 10, 2011 at 8:37 pm

    […] What photo size do i need to print on a poster? – Stock Photo Secrets Apr 26, 2011 … Explanation of what photo size you will need to print on a poster. We also tell you where can you … […]

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