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UPDATES

Research and product notes.

Meaningful changes to tools, sources and methods are recorded here.

October 21, 2026

  • Rebuilt six workflow guides around distinct image problems, downloadable exports, crop comparisons and a verified ZIP example.
  • Published six format-test inputs, their actual outputs and a measurement manifest. Separated reference measurements, generated fixtures, worked calculations and browser behavior.
  • Added a homepage framing comparison and organized guide discovery by problem.
  • Corrected tool destinations and replaced retired moved pages with permanent redirects.
  • Rechecked the Etsy sources and removed an outdated byte threshold that is no longer present in the cited listing-creation help page. Corrected Shopify's documented format list.

September 24, 2026

  • Added a local browser format-comparison tool and expanded the Shopify reference.

September 23, 2026

  • Expanded the Etsy reference and added clearer source links and tool limitations.

Read the verification method.

SellerOperations Lab

Product-image workflows for independent online sellers.
Source-led guidance and local browser tools, not affiliated with Etsy or Shopify.

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