Open AVIF images anywhere by converting them to JPG. AVIF is efficient but still unsupported by many tools.
PNG ignores the quality setting because it is lossless. Enhance uses smooth upscaling and sharpening, not AI, so it makes soft images crisper but can't recover detail that isn't there. If your browser can't write AVIF, that option reports an error and you can pick another format.
This works only if your browser can display AVIF files, which most current browsers do.
Your browser may not support AVIF. Try a recent version of Chrome, Edge or Firefox.
Choose 90% or higher to stay close to the original.