DxO PhotoLab 4 ELITE Edition 4.0.2.45 Multilingual | macOS | 371 mb DxO PhotoLab (was DxO Optics Pro) provides a complete set of smart assisted corrections that you can manually fine-tune at any time. Take control on every aspect of your photos: effectively remove noise, get rid of light constraints, recover color details, apply sophisticated optical corrections, and enhance details.