Turn a Photo Into a Poster
Printing small photos large is where enlargement usually falls apart: the file goes soft and the shop crops the sides to fit the paper. We rebuild the image at poster scale and extend the scene to fill the shape instead.
Drop images, or click to browseTap to choose photos
JPG, PNG, HEIC, WEBP (up to 50MB each) · up to 5 at once
From $1.99 · no account · nothing uploaded until you continue
Each extra image $1.99 $0.99 · up to 5 per order
Set to 18×24 inches. Change it to any poster size after uploading.
Common Poster Sizes
Shape matters more than inches: a photo already in the poster's proportions needs nothing generated. These are what we deliver at each size.
The standard poster. Same shape a phone camera shoots.
Delivered ≈3,460×4,620 px
The cinema-poster size. Same shape as a camera photo or a 4×6 print.
Delivered ≈3,265×4,900 px
Big framed print rather than poster. Same shape as an 8×10.
Delivered ≈3,575×4,470 px
Small poster or a mat-framed print.
Delivered ≈3,300×4,200 px
Any other size works too — see every size or type your own dimensions above.
What Prints Well Large
- A photo that was taken sharp, even if it's small — detail can be rebuilt, but it can't be invented from mush
- A subject with space around it, since a poster is mostly composition
- Backgrounds that continue naturally: sky, water, walls, foliage, studio backdrops
- A shape close to the poster's, so less of the scene has to be generated
What Doesn't
- —Screenshots of already-compressed images, where the artefacts get enlarged too
- —Heavy motion blur or a missed focus — neither is recoverable at any size
- —Text or logos near the edge, which extending will not continue correctly
- —A face cut off by the original frame, which cannot be guessed back into existence
Poster Questions
Can I print a phone photo as a poster?
Usually yes. A modern phone photo is around 12 megapixels, and we deliver an 18×24 at roughly 3,460×4,620 pixels — about 190 pixels per inch — with the image rebuilt rather than simply stretched. Posters are viewed from a step or two away, where that reads as sharp. The limit isn't the megapixels so much as the original: a photo that was already blurry stays blurry, only bigger.
What resolution do I get?
Up to 16 megapixels, which is the ceiling on the delivered file. For an 18×24 that works out near 190 pixels per inch and for a 24×36 near 135. Large-format printers are designed around numbers like these, because a poster is never inspected from six inches away — the 300 DPI rule belongs to small prints held in the hand.
My photo is the wrong shape for a poster. What happens?
The scene is extended outward until it fits, rather than the edges being cropped off. A 3:4 phone photo going onto a 2:3 poster gains generated width at the sides; a 2:3 camera photo going onto a 3:4 poster gains height. Your original stays whole in the middle either way.
Will the print shop accept the file?
It's a standard image file at the shape you asked for, which is what any print service wants. If yours asks for a specific pixel size, type that in the size fields instead of the inches and you'll get exactly it.
How much does it cost?
You pay per image, with no subscription and no account — the price is shown above the upload box before you commit, and each additional image in the same order costs less. We only make the file; printing it is between you and your print shop.
More answers on the Resly AI FAQ, or read how the scene is extended rather than cropped. Printing a memorial portrait? See the funeral photo enlargement guide.