How do I optimize product images for Google shopping?

In a Shopping result the image is larger than the title and it is what the eye lands on first. Everything else in the listing is read afterwards, if at all.

So the main image has one job: make the product instantly recognisable at thumbnail size on a phone. That means the product filling most of the frame, shot square, against a plain background, well lit, in focus, with the recognisable feature of the item facing the viewer.

Crop tightly but leave a small margin so the product does not touch the edges. An image with the product occupying a quarter of the frame surrounded by empty space wastes the only visual space you get.

Shoot the angle a buyer identifies the product by. For shoes that is the side profile, for a jug it is the handle and spout, for a garment it is the front laid flat or worn cleanly. Artistic angles look good on your own page and lose recognition in a grid of competing thumbnails.

And check it at the size it will actually appear. Open the image, shrink it to thumbnail size, and see whether you can still tell what it is.

Merchant Center has clear rules about what a product image may contain, and breaking them is one of the most common reasons a catalogue silently underperforms.

No promotional overlays. Price flashes, sale banners, percentage badges, free delivery stickers and calls to action are not allowed on the image.

No watermarks or logos placed over the product. Branding that is part of the product itself is fine. A logo stamped in the corner by your photographer is not.

No borders, frames or decorative backgrounds added in editing.

No placeholder or generic images. An image saying photo coming soon, or a single colour swatch standing in for the product, will be rejected.

No images that do not show the product being sold. A lifestyle scene where the product is barely visible, or a group shot of several products when you are selling one, causes both disapprovals and poor click rates.

And the image must match the variant. Sending the same photograph for every colour is a mismatch between what the shopper sees and what they receive, and it is a reliable way to generate returns as well as disapprovals.

Send images larger than you think you need. Google recommends at least 800 by 800 pixels for product images, and going comfortably above that gives room for the crops and zooms used in different placements. Small images look soft when scaled and lose out against sharper competitors in the same grid.

Square is the safest aspect ratio, because it fits the layouts without awkward cropping. If your product is naturally tall or wide, keep the canvas square and let the background take the extra space rather than cropping the product.

Use a standard format your platform serves reliably, keep the file within the accepted size, and make sure the image url returns the image directly without a redirect chain or a login. An image that cannot be fetched is treated as a missing image.

Use a stable url. Regenerating image urls on every deploy forces a recrawl and can cause temporary disapprovals across the catalogue.

Compress sensibly for the web but not aggressively. Visible compression artefacts on a product shot are worse than a slightly larger file, and the file size limits are generous enough that quality should not be the thing you sacrifice.

The main image is deliberately plain, and that means it cannot show scale, texture, what is in the box or the product in use. That is what the additional image field is for, and it supports up to ten extra images per product.

Use them deliberately rather than dumping your whole shoot in. A useful set covers the product from another angle, a close up of the material or finish, the product in use or worn, something showing scale against a familiar object, and the contents of the box where that is not obvious.

These images can appear in the listing detail and they help a shopper decide once they are looking closely. They also reduce returns, because they answer the questions that otherwise get answered by the parcel arriving.

Order matters. Put the most informative one first, since fewer people scroll to the last.

Lifestyle photography belongs here, not in the main slot. A scene with a model, a room or a table setting sells the idea beautifully and identifies the product poorly, which is the wrong trade for the thumbnail and the right one for the second image.

Of everything in a Shopping listing, the image has the largest effect on whether anyone clicks. It is also the least tested, because changing a photograph feels like a bigger job than changing a word.

Run a simple test. Pick ten products with steady impressions, change the main image on five of them, leave five alone, and compare click rate over a few weeks. Change one thing at a time: the crop, the angle, or the background.

Things worth testing: a tighter crop, showing the product worn or in use where policy allows and identification is still clear, a different angle, and a plain white background against a very light neutral one.

Watch click rate and conversion rate together. An image that lifts clicks but not orders is attracting the wrong expectation, and it will show up in returns later.

Then apply what you learn as a standard for the next photography session, so the whole catalogue improves rather than the ten products you tested. Write the standard down: angle, crop, background, lighting, which additional shots are required. Photography drifts otherwise, and a catalogue shot by four people over three years looks like it.