Image Ratio for Printing

Reading a ratio

The number before the colon is width, the number after is height, and both describe a relationship rather than a specific measurement. A 6000 × 4000 photo and a 3 × 2 print are the same shape — 3:2 — just at different sizes. That's why ratio never limits how big a print can be, and why it never affects sharpness. Ratio decides one thing only: whether your image fills the print's shape.

When the shapes don't match

Say your file is 3:2 and you order a 5" × 5" print — a 1:1 shape. The image can't fill a square without changing, so there are two honest outcomes: crop the sides to fit, or print the whole image and leave borders above and below. Stretching it to fit is the third option nobody wants — it distorts everything — so we don't do it.

Crop or borders is your call, not ours — and you'll see exactly how it's framed on your proof before anything prints.

Sizing a print: width first

When it's time to pick a size, we usually ask one question: how wide do you want it? Choose the width, and your file's ratio sets the height. A 3:2 image printed 12 inches wide comes out 8 inches tall — width times the ratio's second number over its first (12 × 2⁄3 = 8). Works in any direction, at any size, for any ratio.

Banners are a different shape than your photo

Banners and long signs run 2:1, 4:1 or even wider — shapes no camera produces. A 4:3 photo simply cannot fill a 2' × 8' banner; forcing it means cropping away most of the picture. So banner jobs get designed for the shape instead: your photo as one element, with your headline, logo and color carrying the rest of the width. That's design work our team does as part of the job, and you approve the full layout on your proof.

Ratio vs. resolution

These two get confused constantly, and they're independent. Ratio is shape — it decides cropping and borders, never sharpness. Resolution is detail — it decides sharpness, never shape. A file can be the perfect shape and too soft to print, or razor sharp and the wrong shape entirely. Our design review checks both on every file. For the sharpness half of the story, see screen vs. print resolution.