Analyze source quality, review Amazon readiness checks, and resize proportionally without uploading it.
Last reviewed: August 10, 2026Amazon main images have both measurable technical properties and content rules that software cannot fully judge. OpenFileTools separates those two ideas: it checks the source, then gives you explicit export controls.
OpenFileTools samples border pixels for an approximate background estimate, checks measurable source properties, and exports locally with the size and fit settings you choose. It does not inspect brand policy, product accuracy, or every visual content rule.
| Property | Behavior |
|---|---|
| Processing | Browser only; no image upload |
| Original | Never changed |
| Recommended export | 1,600 px longest side |
| Square required | No |
Amazon's 1,000 px longest-side threshold is useful for zoom readiness; OpenFileTools uses 1,600 px as the stronger recommended export target. A square canvas is optional, not an automatic requirement.
Main product images need a pure-white RGB 255,255,255 background and careful product framing. Secondary or lifestyle images may serve a different purpose, so do not force every photograph into the main-image treatment.
Marketplace rules change. Review the official source before publishing an important listing.
At least 1,000 px on the longest side is the informational zoom threshold used here; 1,600 px is the stronger working target.
No. OpenFileTools preserves proportions by default and offers a square canvas only as a deliberate choice.
No. It can meet dimensions, but it cannot restore detail missing from the source.
No. Content, accuracy, framing, and category rules still require human review.