01Fits the window, not just the ceilingMost tools shrink until the file is under the limit, and portals then reject it for being too small. Resize Baba lands inside the minimum and maximum.
02Shrinks pixels before qualityTo reach 20 KB it reduces the dimensions first and only lowers JPEG quality as a last resort, so faces and signatures stay sharp.
03Exact frame for fixed sizesFor fixed-size photos like 200×230, the image is cropped to that exact frame instead of being stretched to fit.