With legacy bulk naming, Amazon reads the file name to assign the product and image slot. Flexible naming lets you assign images after upload (Amazon Upload images). Build a legacy name below, or paste one and see what is wrong with it. Nothing is uploaded: this runs in your browser.
ASIN, UPC, EAN, ISBN, GTIN or JAN (Amazon Product image guide). Dashes and spaces are removed for you.
It checks the identifier, the variant code and the extension, and warns when a missing variant code would make the image your main image (Amazon Upload images).
Amazon’s Product image guide gives the format as product identifier + variant code + file extension, with the example B000123456.MAIN.jpg, and adds the part that catches people out:
“The file name requires three components, separated by a period (spaces, dashes, or additional characters will prevent your image from uploading).”
The identifier is “the barcode number, ASIN, UPC, ISBN (10 or 13), EAN, GTIN, or JAN”. The file name matters when you upload in bulk through the Upload Images tool. Amazon’s flexible file naming option lets you name files anything and assign them after upload instead (Amazon Upload images).
This is the mistake worth knowing about, because the upload succeeds. Amazon’s Upload images help page: “Images with a product ID in the file name but no variant code will be treated as a main image. For example, B000123456.jpg will be uploaded as the main image.” (Amazon Upload images)
So a lifestyle photo named B000123456.jpg is submitted to the MAIN slot and could replace the displayed main image if Amazon selects it (Amazon Product image guide). The image upload errors guide covers that and every other error Amazon lists.
Amazon’s Product image guide lists these image types:
| Code | What it is for |
|---|---|
| MAIN | Shown in search and browse, and first on the product detail page. |
| PT01–PT99 | Additional angles, the product in use, screenshots, accessories or details. |
| TOPP–SIDE | A specific side of the product. |
| SWCH | A colour sample for a product with several versions. Without one, the main image is used as the thumbnail. |
| PS01, PS02, PS03, PS04, PS05, PS06 | Warning and safety information, shown in the Safety and Product Resources section. |
| IN01–IN99 | Sample pages, typically for books. |
| INGR | Information about ingredients. |
| EEGL | An energy guide image. |
| DTLS | Several items packaged together, or a large quantity of identical items. |
Amazon lists JPEG (.jpg or .jpeg), TIFF (.tif or .tiff), PNG (.png) and non-animated GIF (.gif), and recommends JPEG (Amazon Product image guide). Its image error codes page notes that “Extensions are not case sensitive.” (Amazon image error codes)
Renaming a file does not convert it: a PNG renamed to .jpg is still a PNG, and Amazon rejects it as corrupted or an unexpected format (Amazon corrupted image guidance). Which format to use, and when PNG is worth its size, is in the image format guide.
A correct name is not a compliant image. This page checks the text of the file name only. It cannot tell you whether the identifier belongs to your ASIN, and it never sees the image itself.
For the image, the checker measures the background against RGB 255, 255, 255, the product’s fill, the dimensions and the file format, free and with no account. The Amazon image requirements guide covers the rules themselves.