Updated for 2026: Poshmark now supports portrait (3:4) photos in the feed. Square still works — here's what you need to know.
or drop files — PNG, JPG, WebP
Etsy needs 2000×2000px minimum. Different specs, same tool.
→White background required, strict size rules.
→Which platforms strip EXIF data and which expose your home address.
→Upload once, export for Etsy + Poshmark + eBay + Amazon in one click.
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