Will this work on any JPG image?
It works best on logos, icons and graphics with flat colors and clean edges. JPG is a lossy format often used for photographs, and photographs do not trace well into SVG shapes. The result on a photo is usually a large file with thousands of tiny shapes that looks worse than the original. JPG compression artifacts can also reduce trace quality further. For photos, keep them as JPG, PNG or WebP instead of converting to SVG.