Channel requirements
Amazon A plus basic header requirements
Curvi builds Amazon A plus basic headers to the rules below, then measures the output pixels against the size, background and fill rules before a file ships. This spec is compiled from public guidance and is pending verification against official documentation.
| Rule | Requirement |
|---|---|
| Exact size | 970 by 600 px |
| Background | No background rule published |
| Text on the image | Allowed |
| Formats | jpg, png |
| Maximum file size | 2 MB |
What this means in practice
This format is more flexible than a marketplace main image, but sticking to the recommended size keeps the crop sharp and avoids compression artifacts.
Built to this spec from one photo
Curvi builds Amazon A plus basic headers from one photo of your product, measures the output pixels and attaches the report. A file that still fails a check after a retry is marked for review, and you are not charged for it.