Jpegmini Pro Portable Extra Quality Official

: Subjective tests following the ITU BT.500 standard show that average users cannot distinguish between an original and a JPEGmini-optimized file, even when printed at 200 DPI on photo paper. How to Use JPEGmini Pro

The software employs a mathematical algorithm that imitates the human visual system to identify "redundant" information—data that the eye simply cannot distinguish. Locally Selective Compression: jpegmini pro portable