Furniture is the worst case for image compression and the best case for getting it right. A sofa photo is mostly large smooth areas, which compress beautifully, plus a band of high-frequency texture — the weave, the piping, the grain on a wooden leg — which is exactly what a blunt quality slider destroys first. Buyers zoom on that band to judge material quality, and a listing photo that has gone plastic on the fabric reads as a cheap product. Dimensions add a second problem: a sectional or a wardrobe is wider than a square frame, and the marketplaces that host furniture listings display square tiles. Cropping a wide shot to 1:1 without care cuts off the arms, so you need a composition that survives the crop, then a resize to the platform's target and only then a gentle compression pass. For Wayfair and Walmart the targets are documented: 1000x1000 minimum with 2000x2000 for detail and zoom. Skwish resizes and compresses in the browser with a per-file before/after readout and a batch queue, so a full collection is one pass and one ZIP. Files never leave your machine.