Direct answer: Before you upload a product batch, standardize crop and canvas, convert to the formats each marketplace accepts, compress with a spot-check at 100% zoom, strip EXIF you do not need, and rename files with readable product names. Doing these five steps once in the browser avoids most rejection loops.
Marketplace image failures rarely come from one dramatic mistake. They stack: a soft crop on mobile, a JPEG that balloons past a soft limit, a PNG that should have been WebP, GPS still sitting in EXIF, and filenames like IMG_4821.jpg that break team handoffs. A short preflight catches those problems while the master files are still easy to re-export.
Start from one master folder. Keep uncropped originals separate from marketplace exports. Resize copies to each destination’s pixel rules, then inspect edges and text at full zoom after compression. Prefer sRGB for web delivery. When a platform accepts WebP, use it for lighter pages; otherwise ship a high-quality JPEG. Remove camera metadata that does not help buyers, and name files with product, color, and role (linen-set-sage-main.webp).
GetPicTools can run that final pass in the browser: batch resize, convert, compress, strip EXIF, and rename. Treat the pass as a checklist, not a rescue mission after a rejection email. Catalogs stay cleaner, and the next seasonal update starts from a known-good pipeline instead of a pile of one-off exports.
If you sell across Amazon, eBay, Shopify, Etsy, or TikTok Shop, write the checklist once, then reuse it for every new SKU drop. Consistency beats last-minute image firefighting.
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