A single image ad is a Facebook or Instagram ad built around one still image. Around the image sit the primary text above it, a headline and optional description below it, and a call-to-action button such as Shop now, Book now or Learn more. It is the simplest ad format Meta offers and still one of the most used.
How single image ads work
You choose the single image or video format when creating the ad, upload an image, and write the text. Meta then fits the ad to each placement you have chosen. Because feeds, Stories and Reels have different shapes, the same picture may be cropped differently in each, so it pays to supply the right ratio for each one:
- Feeds 1:1 square or 4:5 portrait, which takes up more of a phone screen. At the time of writing (October 2026), Meta recommends at least 1080 pixels wide.
- Stories and Reels 9:16 vertical, 1080 by 1920 pixels, with key content kept away from the top and bottom.
- Right column and search Smaller placements on desktop, where fine detail disappears.
Placement asset customisation lets you give each placement its own image within one ad. The text matters as much as the picture. Only the first line or two of primary text shows before the “See more” cut, and long headlines are truncated on smaller screens, so the point has to come first. The free ad copy character counter helps keep each field within Meta’s suggested lengths.
Meta dropped its old rule limiting text overlay on images some years ago, but images packed with words still tend to read as clutter on a phone.
Why it matters
Single image ads are quick and cheap to produce, which makes them ideal for testing. A UK business can try five angles for an offer in an afternoon with a phone camera and a design tool, then keep the winners. They also suit messages that land in a glance: a clear product shot, a before-and-after, a price, a seasonal offer or a strong quote from a real customer review.
Video gets more attention in Reels, but a well-made image ad often matches or beats it on cost per result in feeds, especially for retargeting people who already know the business. Many accounts work best with both formats running side by side, or with Meta’s flexible ad format choosing between them.
Common mistakes
- A stock photo that could belong to anyone. People scroll past generic images; real photos of your product, premises or team usually work better.
- One square image for every placement. It gets cropped or padded in Stories and Reels.
- The offer buried in the text. If the first line does not say why to stop, the rest is never read.
- Small text on the image. What is readable on a laptop is often illegible on a phone.
- Running one image for months. Even good images wear out as frequency rises.
How to act on it
Start with what the customer needs to understand in one look, then pick or shoot the image that shows it. Produce 4:5 and 9:16 versions, write a primary text that puts the benefit in the first sentence, and choose the button that matches the next step. Test several images against the same copy, then several messages against the best image. If a single product story needs more room, a carousel may suit it better. Planning, writing and testing image ads is part of my Facebook ads management service.