Mixed supplier shots rarely share one aspect ratio. Before upload, normalize every PDP image to the same width and height—or a channel preset—so QA and portals see a consistent grid.
1. Pick the target frame. From your marketplace help center, note required or recommended width × height. Our platform hub links to common channel guides.
2. Run Bulk Resize on the whole folder. Open Bulk Resize, choose a preset or enter custom dimensions, add a ZIP or folder, and download one archive of normalized assets.
3. Compress if portals cap megabytes. Follow with Bulk Compress after dimensions look right—see wrong listing image size for the combined resize-then-compress mental model.