Is this only for Etsy shops?
No. It uses the same root batch optimizer, but starts from a portrait-style listing profile and page copy tuned for Etsy-like seller workflows.
Can I still change the output size?
Yes. The portrait batch profile is simply the starting point. The normal canvas, format, and batch controls remain available in the editor.
Does Etsy batch processing happen on a server?
No. Queue processing and ZIP export stay local in the browser, and files are rebuilt through canvas so common metadata is stripped on save.
What size should Etsy listing photos be?
At least 1000 pixels wide is the requirement and at least 2000 pixels on the shortest side is Etsy's recommendation. The 1400 x 1800 catalog portrait profile here clears the requirement and sits under the recommendation.
How many photos can I batch at once?
Up to 100 files per queue, at up to 15 MB each, exported as a single zip. Etsy allows 10 photos per listing, so a full queue covers about ten listings.
Portrait or square for Etsy?
Portrait gives more room to a tall product on the listing page, which is why this page opens on the 1400 x 1800 profile. A square is more forgiving of Etsy's thumbnail crop in search. Pick one and be consistent across the shop.
Does batching change the quality of my photos?
Every file is re-encoded, so yes, there is a generation of loss at the quality setting you choose. At JPG 0.86 that is invisible in practice. What you gain is a set of files that are all the same size, tone and weight.
Is anything uploaded?
No. Decoding, resizing, re-encoding and zipping all happen in your browser.