Amazon image size: listing image dimensions, pixels and file specs

By Listing Mammoth team · October 22, 2026

Amazon image size rules for listing images:

• Minimum: at least 500 pixels on the longest side to upload.
• Maximum: 10,000 pixels on the longest side.
• Zoom: 1,000 pixels or more on the longest side turns on zoom, and Amazon recommends it.
• Resolution: at least 72 dpi.
• Formats: JPEG (recommended), PNG, TIFF or non-animated GIF.
• Color mode: RGB preferred ^[1].

The product image guide sets no aspect ratio and no file-size cap.

That's the short version. The details are where listings go wrong. Amazon's own help pages disagree on whether the 500-pixel minimum applies to the longest or the shortest side. Enlarged images are rejected as low quality. The same file uploaded twice is ignored. And a big canvas doesn't help if the product is small inside it. This guide covers all of it, from Amazon's help pages as checked on October 22, 2026. For the rules about what the main image may show, see our main image requirements checklist.

Amazon image size requirements at a glance

Every row comes from Amazon's product image guide ^[1]. The guide doesn't list an aspect ratio or a maximum file size in megabytes. The only size caps Amazon states are the 10,000-pixel maximum and, for bulk uploads, 1,000 images and 1 GB per zip file ^[1][3].

What "longest side" means

Amazon measures size on the image's longest side, in pixels ^[1]. Some examples:

By the longest-side rule, a 900 × 900 square uploads but can't be zoomed. A 1,000 × 1,000 square can. The pixel count of the file is what counts. The dpi value stored in the file doesn't change it.

Amazon's pages disagree: longest side or shortest side?

Two of Amazon's current pages say the minimum is 500 pixels on the longest side: the product image guide and the upload-errors page ^[1][4]. A third, the Product image error codes page, describes error 13, "Image dimensions too small", differently. It says "Product image files must be at least 500 pixels on the shortest side" ^[5]. The same error-codes page also lists accepted extensions without PNG ^[5], although the main guide accepts PNG ^[1].

The error-codes page appears to be the older of the two, since it still leaves PNG out. But if you're unlucky, the rule your upload is checked against may not be the one you read. Our advice: make both sides at least 1,000 pixels. That meets every version of the minimum, keeps zoom on, and leaves room to crop.

Zoom: why 1,000 pixels matters

Amazon says images "with 1,000+ pixels on the longest side enable the zoom function" and recommends 1,000+ "for the best customer experience" ^[1]. Below that, shoppers can't zoom in on your product, so they can't check texture, stitching, labels or ports.

The product image guide doesn't recommend a size above 1,000 pixels ^[1]. An Amazon staff post in 2026 suggests 2,000 px or more for best results ^[7]. That's advice, not a requirement: 1,000 pixels on the longest side is still what turns zoom on ^[1]. Many sellers and designers export at 2,000 × 2,000 or larger so zoom stays sharp. Any size up to 10,000 pixels is allowed ^[1].

Don't enlarge small images

Amazon's guide is direct about this: "Do not artificially enlarge small images" ^[1]. Amazon's error codes include "Product out of focus", which covers an image where "a digital image was resized (upward) to create a degraded image" ^[5]. Blurriness and pixelation are also on Amazon's list of image suppression reasons ^[6].

Upscaling a 600-pixel photo to 1,200 pixels gets you past the zoom threshold on paper. Zoom then shows the blur. Reshoot, or start from the original high-resolution file.

Bigger isn't enough: the product has to fill the frame

Image size and product size are separate checks. For the main image, Amazon asks you to "show the product as 85% of the image" ^[1]. "Product too small" is a suppression reason for any image ^[6].

Amazon's error-codes page gives an example: a 500 × 500 image in which the product appears in only 100 × 100 of it ^[5]. A 3,000-pixel image with a small product in the middle has the same problem, just with more white pixels. Crop so the product fills the frame, then check the pixel size.

Aspect ratio

The product image guide doesn't set an aspect ratio ^[1]. Square images are the common choice among sellers and designers. That's practice, not a rule. If you use a non-square image, the longest-side rules above still apply.

File format and color settings

Formats. Amazon accepts JPEG, TIFF, PNG and non-animated GIF, and recommends JPEG ^[1]. It does not accept:

• EPS, BMP or PDF files
• files native to one application, such as PSD (Photoshop), Illustrator, CorelDRAW or Word ^[2]

Compression. Amazon's file-preparation advice ^[2]:

• Use minimal or no compression.
• Save JPEGs at the highest quality, and avoid saving the same JPEG over and over while you edit.
• Don't compress TIFF files.
• Remove all layers before uploading.

Color mode. RGB is the color mode Amazon accepts ^[2].

• CMYK is "not preferred", and Amazon asks you to convert to RGB first ^[2]. Its upload-errors page does list CMYK as a color mode that uploads ^[4], so a CMYK file may go through and then show off-color.
• Grayscale is acceptable "only for product detail page images that accurately depict gray or silver metal products" ^[2].
• ICC profiles. Amazon says not to rely on them for accurate color, because images that depend on a specific profile "may not appear as intended" ^[2].

File names and image slots

Each image goes into a slot identified by a variant code ^[1]:

If you upload in bulk with legacy file naming, the file name is the product ID, the variant code and the extension, separated by periods: B000123456.MAIN.jpg. Spaces, dashes or extra characters "will prevent your image from uploading" ^[1].

A file with a product ID but no variant code, such as B000123456.jpg, is treated as a main image ^[3]. That's an easy way to overwrite your main image by accident. Flexible naming lets you call files anything and assign them after upload ^[3].

Uploading: what Amazon does with your files

• Bulk limits: the Upload Images tool takes up to 1,000 images and 1 GB per zip file. Amazon says hidden system files in the zip (such as __MACOSX folders) cause failures ^[3][4].
• Display time: allow up to 24 hours before a new image shows on the page, if Amazon selects it ^[1][4].
• Duplicates are ignored. If you upload the same file again, Amazon "may detect it as a duplicate and your contribution will remain unchanged". The fix it gives is a visible change, "for example, different resolution or cropping" ^[4].
• Uploading isn't displaying. Amazon picks and orders images from multiple selling partners. It may choose images different from yours, and it "may also modify images" to meet its requirements ^[1][4].
• Variations share images. For a variation family, Amazon picks images from one option and shows them across all sizes of the same color or style ^[4].

How many images

Every product needs at least one compliant main image. Amazon recommends "at least six additional images and one video" ^[1]. Image size rules apply to all of them, not just the main image.

How to check your image size

1. Check the pixels. On a computer, open the file's properties (Windows) or Get Info (Mac) and read the pixel dimensions. Amazon suggests the same ^[1].
2. Check the longest and the shortest side. Both should be 1,000 pixels or more.
3. Check the format and color. Confirm it is a JPEG or PNG in RGB, not a CMYK export from a print workflow.
4. Check the crop. Zoom to 100% and look for blur or jagged edges. If the image was enlarged, start over from the original.
5. Check the fill. On the main image, the product should fill the frame. Crop tighter if it doesn't.
6. Check after upload. Wait 24 hours, then check the live page on a phone.

Image size checklist

• 1,000 px or more on both sides (meets every version of Amazon's minimum and enables zoom)
• No more than 10,000 px on the longest side
• 72 dpi or more in the file settings
• JPEG (recommended) or PNG, TIFF or non-animated GIF; no PSD, PDF, EPS or BMP
• RGB color, not CMYK; grayscale only for gray or silver metal products
• Not enlarged from a smaller original
• Product fills the frame (85% on the main image)
• File named PRODUCTID.MAIN.jpg (or PT01 and so on) for bulk upload
• A visible change made when replacing an image, so it isn't ignored as a duplicate

Check your main image

Our free listing score checks whether your main image is big enough for zoom. It also checks whether the background at the edges is pure white and whether the product fills enough of the frame. Then it counts your images and the types of image your gallery is missing. How we score lists every check. If you'd rather have the images made, Listing Mammoth makes Amazon listing images from your product photo as part of a one-listing refresh. You get an enhanced main image on pure white, checked against your photo, five explainer images, and new copy.

Frequently asked questions

What size should Amazon listing images be?

At least 500 pixels on the longest side to upload, and 1,000 pixels or more to enable zoom, which Amazon recommends. The maximum is 10,000 pixels. An Amazon staff post in 2026 suggests 2,000 px or more for best results, but 1,000 px is what Amazon requires for zoom ^[1][7].

Does Amazon require square images?

No. Amazon's product image guide sets no aspect ratio. Size is measured on the longest side ^[1].

What is the maximum file size for Amazon images?

The product image guide gives no megabyte limit, only the 10,000-pixel maximum. Bulk zip uploads are limited to 1,000 images and 1 GB per zip file ^[1][3].

Is the 500-pixel minimum on the longest or shortest side?

Amazon's product image guide says the longest side, but its error-codes page says the shortest side. Making both sides at least 1,000 pixels meets both and enables zoom ^[1][5].

What file format is best for Amazon images?

JPEG, which Amazon recommends. PNG, TIFF and non-animated GIF are also accepted. PSD, PDF, EPS and BMP are not ^[1][2].

Why isn't my new image showing on Amazon?

It can take up to 24 hours. Amazon also ignores a file identical to one already submitted, and it chooses which sellers' images to display ^[1][4].

Sources

1. Amazon Seller Central help, “Product image guide”. sellercentral.amazon.com · checked 2026-10-22 · public page, loads in a browser
2. Amazon Seller Central help, “Technical image file requirements”. sellercentral.amazon.com · checked 2026-10-22 · public page, loads in a browser
3. Amazon Seller Central help, “Upload images”. sellercentral.amazon.com · checked 2026-10-22 · public page, loads in a browser
4. Amazon Seller Central help, “Image upload errors and display issues”. sellercentral.amazon.com · checked 2026-10-22 · public page, loads in a browser
5. Amazon Seller Central help, “Product image error codes”. sellercentral.amazon.com · checked 2026-10-22 · public page, loads in a browser
6. Amazon Seller Central help, “Image suppression”. sellercentral.amazon.com · checked 2026-10-22 · public page, loads in a browser
7. Amazon Seller Forums (Michelle_Amazon), “Prime Day Listing Prep: Images, A+ Content & Video”. sellercentral.amazon.com · checked 2026-10-22 · Amazon staff post, US forums, 2026: 'aim for 2,000+ for best results'