A food photo's appearance comes mainly from the source: lighting, focus, composition and the food itself. This page cannot correct a color cast, brighten a dark plate or replace a dull background. Make those decisions in your photo editor and export an edited master before reducing it for a restaurant website, menu gallery or social post.
Keep that master separate from the compressed image. A square social tile, a portrait story and a wide menu banner can all require different framing. Fit within preserves the original photograph, while Exact size crops it to your selected shape. Inspect plate rims, utensils and garnish near the boundaries before approving a crop. The tool does not add a decorative border, extend the tabletop or generate missing food outside the original frame.