Your main Shopify photo is fine. Your gallery images are not.
Google’s 500 × 500 px rule from 31 January 2027 covers every product image. In 9 Shopify brands we scanned, 84% of the small images were additional gallery photos.
Most store owners check their main product photo, see a sharp 2000 px image, and assume they're fine for Google's new rule. Then Merchant Center shows “Image too small for upcoming enforcement” anyway. The problem usually isn't the first photo. It's the ones behind it.
Google checks every image, not just the first
In its 2026 product data update, Google raises the minimum to 500 × 500 px for both the main image (image_link) and the additional images (additional_image_link). Enforcement starts on 31 January 2027.
On Shopify, the main image is the first photo in a product's Media. The additional images are every other photo: extra angles, detail shots, lifestyle crops and variant photos. The Google & YouTube app and most feed apps send them all.
What we found in 9 Shopify brands
On 4 November 2026 I re-scanned 9 well-known Shopify brands in the UK, US and UAE with PixPass and sorted every image under 500 px by where it sits.
Two patterns stood out:
- Fashion brands had clean main images but whole sets of old gallery shots around 450 px. One UK brand had 176 small images, and every single one was an additional image.
- Resale and marketplace-style stores were the opposite: their main images were often small too.
The likely story: the first photo gets updated over time, while the rest of the gallery is never re-checked.
Why gallery images end up small
- Old detail shots uploaded years ago at 400 to 480 px.
- Lifestyle crops cut out of a bigger campaign photo.
- Swatches and thumbnails added as product media. One store had 38 × 38 px images.
- Variant photos added later by someone who resized them “to save space”.
How to find them
Merchant Center lists affected products, but it doesn't tell you which photo inside a product is the small one. With several photos per product, that means opening each product and guessing.
PixPass checks every image in your public Shopify catalog and lists each one under 500 px on either side, with its product, so you know exactly which file to replace. No app install and no admin access.
How to fix them
- Delete what you don't need. A 38 px swatch adds nothing to a product gallery. Removing it fixes it.
- Replace with the original where you still have it. Real detail always wins, and Google advises against scaled-up thumbnails.
- Upscale the rest to at least 800 px on the short side. PixPass does this in your browser and gives you a ZIP and a CSV.
- Keep the order and variants. Upload the new file, move it to the old one's position, re-assign it to the same variant, then delete the old file.
Changes reach Merchant Center on the next sync and can take 24 to 72 hours to show. For the full walkthrough, read how to fix Shopify images before Google's 500 px rule.
FAQ
Does Google's 500 × 500 px rule apply to additional images?
Yes. Google applies the new minimum to both image_link and additional_image_link, starting 31 January 2027.
Which Shopify images count as additional images?
Every photo in a product's Media after the first one, including extra angles, detail shots and variant photos, when your feed app sends them.
Can I just delete small gallery images?
Yes, if they don't help shoppers. Removing a tiny swatch or thumbnail is often the quickest fix.
Does PixPass scan gallery and variant images?
Yes. It checks every image in your public Shopify product catalog, not just the main photo.
Check your whole store in a minutePixPass lists every product image under 500 × 500 px, main and gallery. Free scan, first 3 fixes free.