Resize a Photo to A3 Without Cropping
A3 (11.69×16.54 inches) = 3,508 × 4,961 px at 300 DPI, or 1,754 × 2,480 px for a print viewed from a step away (150 DPI).
A3 is 297×420 mm, twice the size of A4, and the poster size people reach for when a sheet of paper isn't enough but a full poster is too much. Upload your photo below and we'll extend the scene to A3 rather than cropping it to fit.
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Set to A3 (11.69×16.54 inches) — 3,508 × 4,961 px at 300 DPI. You can change it after uploading.
Why A3 Cuts Things Off
A3 has the same 1:1.41 shape as every A size: taller than a 3:4 phone photo, squatter than a 2:3 camera photo. Either way about six percent goes, off the sides of a phone shot or the top and bottom of a camera one, and on a poster that's usually the sky above a landscape or the feet of the people in it. The upside of the A series is that the shape never changes: get a photo to A3 proportions and it also fits A4 and A2 exactly. At 300 DPI, A3 is 3,508×4,961 pixels, just over our 16-megapixel limit, so it's delivered at about 3,363×4,756. That's still around 290 pixels per inch, sharp even close up.
Instead of trimming your photo down to the shape, we generate more of the scene around it until it fits — and sharpen the whole image in the same pass.
Where A3 shows up
- Posters and art prints for a bedroom, office or dorm
- Prints ordered from shops that sell in A sizes
- Printable wall art sold as A-size downloads
- Wide-format home printers that take A3 or A3+ paper
Pixels an A3 print needs
- Sharp in your hand (300 DPI)
- 3,508 × 4,961 px
- Sharp on a wall (150 DPI)
- 1,754 × 2,480 px
A smaller photo still prints, just softer. Check yours against every size on the print size chart. Changing the DPI setting alone doesn’t add pixels: how to convert an image to 300 DPI.
A3 Questions
What is A3 in inches?
11.69×16.54 inches, usually rounded to 11.7×16.5. In centimetres it is 29.7×42, exactly twice the area of A4.
What is A3 in pixels?
3,508×4,961 pixels at 300 DPI, or 1,754×2,480 at 150 DPI. We deliver about 3,363×4,756, the same shape at roughly 290 DPI.
Is A3 the same as 11×17?
Close, but no. A3 is 11.7×16.5 inches and slightly wider for its height; 11×17 is a little narrower and taller. A file made for one gets trimmed slightly by the other, so use the page for the size you're actually printing.
More answers on the Resly AI FAQ.