Marketplace sellers often discover image problems too late. A product photo may look fine in an editor, but after uploading it to a marketplace it can become: cropped in search thumbnails too small for zoom previews the wrong aspect ratio for a sales channel risky for Amazon-style main image req...
Source: [Dev.to](https://dev.to/qiang_liu_61bcd5dc8419b5f/i-built-a-local-first-image-checker-for-marketplace-sellers-31i1)