On January 31, 2027, Google will require Merchant Center product images to be at least 500 × 500 pixels. Warnings for smaller images began in April 2026. That deadline is a useful reason to audit more than resolution: the subject, variant mapping, image URLs, and provenance metadata all affect whether an image is usable.
Guidelines checked on August 30, 2026. This guide labels requirements and recommendations separately. Merchant Center rules change, so check the linked source pages before a large catalog migration.
Requirements at a glance
| Attribute | Requirement | Google recommendation |
|---|---|---|
| Resolution | At least 500 × 500 px from January 31, 2027 | At least 1,500 × 1,500 px for performance across ad formats |
| Upper limit | No more than 64 megapixels or 16 MB | Use the largest useful original within those limits |
| File types | JPEG, WebP, PNG, GIF, BMP, or TIFF | The extension must match the actual format |
| Image URL | HTTP or HTTPS, RFC 3986 compliant, and crawlable | Use a stable URL without changing timestamps |
| Product coverage | No mandatory percentage | Frame the product at 75–90% of the image |
| Background | The actual product must be clear and accurate | Solid white or transparent usually works best; suitable lifestyle images are also allowed |
These values come from Google's current image_link documentation. The 1,500 × 1,500 figure is a recommendation, not the minimum requirement.
What changes in 2027
Google announced a 500 × 500 pixel minimum for every product category and marketing method, effective January 31, 2027. Since April 14, 2026, Merchant Center may warn merchants about images below that threshold. Google records the timetable in its 2026 product data specification update.
Upscaling a thumbnail can satisfy the pixel count without restoring product detail. Start with the largest reliable master, then inspect edges, labels, and fine textures at 100% before the file enters the feed.
Use the correct image field
Merchant Center provides three fields with different jobs:
| Feed field | Limit | Appropriate content |
|---|---|---|
image_link |
1 | The clear primary image for the exact offer |
additional_image_link |
Up to 10 | Other angles, details, product use, or bundle contents |
lifestyle_image_link |
Up to 5 | Staged scenes in which the product remains identifiable |
For the dedicated lifestyle field, Google specifies at least 600 × 600 pixels and an aspect ratio from 2:3 to 2:1. See the official pages for additional images and lifestyle images.
This separation matters. A compelling scene is not automatically a suitable primary image. The main field should make the offer unambiguous; supporting fields can then add context, close detail, and use cases.
Content that can get a primary image rejected
Google can reject an offer when the primary image does not match the product or contains promotional material. Prohibited elements include:
- prices, discount labels, and free-shipping claims;
- calls to action such as “Buy now”;
- watermarks, merchant logos, and brand marks that are not part of the product;
- frames, barcodes, and placeholders;
- accessories that are not included in the offer;
- a flat package front when the full packaged product should be shown.
Bundle images should show the included products. Generic illustrations and graphics are not substitutes for a real product image, apart from specific exceptions that Google lists for a few categories.
A white or transparent background is a recommendation, not a universal mandate for every product image. Google also permits staged or lifestyle imagery when the product remains clear. Accuracy is the boundary: the image must not invent a color, material, accessory, or package that the buyer will not receive.
Match images to variants
Color, pattern, and material in the image need to match the submitted variant. A green sofa is not a valid image for the blue member of the same variant group. When variants differ only in a non-visible size, reusing the same image URL can be reasonable.
Use this catalog rule:
- Give every visually different variant its own master image.
- Validate the image,
color,pattern, and landing page together. - Do not show several colors in one primary image when the offer is for one color.
- Keep the URL stable until the image content actually changes.
Preserve provenance metadata in AI-generated images
Google requires generative-AI images to retain embedded metadata that identifies their synthetic origin. Its documentation names the IPTC DigitalSourceType property and these source types:
TrainedAlgorithmicMedia: created with a model derived from sample content;CompositeSynthetic: a composite containing synthetic elements;AlgorithmicMedia: created entirely by an algorithm that was not derived from sample training data.
The requirement appears in Google's guidance on AI-generated product data and in the main image specification. A visible label inside the picture is not a replacement for embedded provenance.
The weak point is often the export chain. An editor, optimizer, CDN, or commerce connector can strip metadata after generation. Inspect the delivered file after the last processing step, not only the local master. No workflow should claim that it preserves Merchant Center AI metadata until that exact path has been tested.
Make image changes crawlable
Google recommends persistent, public image URLs. Keep a URL stable when the image has not changed. When you replace the image itself, Google's documented best practice is to publish a new URL. The new asset is usually recrawled within 24–72 hours; changing the content behind an existing URL can take considerably longer to be detected.
Also verify that:
- the URL returns a supported image directly rather than an HTML interstitial;
- neither Googlebot nor Googlebot-Image is blocked by
robots.txt; - signed parameters do not expire;
- the file extension agrees with the real media type;
- the product page and feed point to the intended production asset.
Pre-export audit
Run these checks in order:
- Offer accuracy: Does the image show the exact variant and only included accessories?
- Master quality: Is the source genuinely detailed rather than a stretched thumbnail?
- Dimensions: Plan for 500 × 500 pixels as the 2027 minimum; treat 1,500 × 1,500 as guidance.
- File limits: Stay below 64 megapixels and 16 MB, with a matching format and extension.
- Visual policy: Remove promotional overlays, frames, watermarks, and placeholders.
- Field choice: Separate primary, additional, and lifestyle imagery.
- AI provenance: Read
DigitalSourceTypefrom the final exported asset. - URL access: Test the public response and crawler access.
- Variant sample: Compare color, pattern, material, and destination page across each group.
- Diagnostics: Review Merchant Center warnings and disapprovals after ingestion.
If your catalog first needs consistent cutouts and margins, start with the bulk background-removal workflow. The companion product image alt-text guide covers filenames and accessible descriptions.