What upscaling adds and what it leaves alone
Upscale raises the resolution of an image by a factor of two or four, up to the largest result size listed among its settings. The factor is the only choice: the tool offers no format, background or scene, and it does not redraw the image. What changes is the number of pixels behind each seam, fibre and edge, which decides how far a buyer can zoom into a product page before the picture turns soft.
The step behind the tool is restoration, not generation: the image is enlarged from what the source already shows, and the garment is not drawn again. Prints, logos and lettering, buttons, zips and pockets, the weave, the ribbing and the pattern scale are therefore the ones in the source image, at a higher resolution. Restoration has a limit of its own. Detail that the source never recorded cannot be brought back, which is why the checks below start with fabric and lettering.
When to upscale and when another tool fits better
Upscale is the right step when an image is finished and correct but too small: a supplier photo, an older listing image or a crop that falls short of the size a sales channel asks for, or one that turns soft as soon as a buyer zooms. It suits images whose content should not change at all. A source that is out of focus or heavily compressed is a different case; enlarging it makes the softness larger too, and a new photograph is the sounder fix.
Other needs belong to other tools. When buyers should see one part of the product close up, Detail shot frames a close-up of the collar, the fabric, a print, the hardware or the stitching from the photo at hand. When the shape of the image is wrong and not its size, Extend frame changes the format without cropping. An image that is still to be made needs no enlargement afterwards: Virtual try-on, Ghost mannequin and Product studio deliver in 2K, with 4K as an option.
What to check in an upscaled image before publishing
An upscaled image is judged at full size, not fitted to the screen. Fabric is the first place to look: a knit, a twill or a denim weave should still read as fibre and thread, not as a smooth, painted surface. Edges come second. A bright or dark line running along the outline of the product, or along a hard seam, is a sign of over-sharpening and shows most clearly where a dark garment meets a white background.
Lettering is worth comparing with the source letter by letter: brand labels, care labels, printed slogans and the engraving on buttons or rivets. Regular patterns such as stripes, checks and ribbing should keep their spacing across the whole garment. Flaws in the source grow with it, so compression blocks, noise in the shadows and dust on the fabric are easier to see after enlargement. File size grows as well, which matters where a sales channel sets an upload limit.