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Getting started5 min readUpdated 2026-09-03

Preparing good product images

How to export detail page images so the specification and quality checks pass on the first round.

On this page

  1. Size and file format
  2. The main image
  3. What the quality check looks at
  4. Text baked into images

Size and file format

Every marketplace declares a minimum edge, a recommended edge, a maximum edge and a file size cap. Export to the recommended edge — going larger wastes bandwidth and can trip the maximum, going smaller fails the minimum outright.

MarketplaceMinimum edgeRecommended edgeFile cap
Amazon1000 px2000 px10 MB
Rakuten500 px1024 px2 MB
Shopee500 px1600 px10 MB
Default when a marketplace does not publish one800 px2048 px20 MB

The exact numbers for your pair are shown in step 1 of the inspection wizard. The table above is a sample, not the full list.

The main image

  • Pure white background on most marketplaces. Off-white or a photographed backdrop is flagged as a quality issue.
  • Product only. No added text, no badges, no watermarks, no borders, no collage.
  • The product should fill roughly 85 percent of the frame.
  • No lifestyle props on the main image — keep those for gallery slots.

What the quality check looks at

Beyond the hard specification limits, the engine measures the image itself and reports quality findings.

CheckWhy it fires
Too dark or too brightAverage luminance falls outside the readable range.
Background not whiteThe main image background is not close enough to pure white.
Embedded metadataEXIF data including GPS coordinates or camera serials is still attached.
Low effective resolutionThe file is large but the visible detail is not.

Format conversion, resizing and metadata stripping are all automatic fixes. You do not need to re-export by hand for those three.

Text baked into images

Claims printed inside an image are treated exactly like claims in the listing text. A banner reading "No.1 in the world" or "100% safe" fails the expression check wherever it appears. Keep superlatives, medical claims and competitor names out of the artwork, because an image fix means re-exporting the file yourself.

Phone numbers, messenger IDs and external shop URLs inside images are a common cause of account suspension. Remove them before uploading.

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Related guides

  • Choosing the country and marketplaceDodam AI covers 17 countries and 13 marketplaces. The pair you pick decides which image specs, banned expressions and mandatory disclosures apply.
  • Reading an inspection resultWhere the score comes from, how the verdict is decided, what the five inspection types mean and how to read the evidence.
  • Common errors and what to doUpload failures, stuck inspections, missing downloads, API rejections — the checks to run before contacting support.

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