An extract of the website of the applied software: Portrait Professional 9 is new portrait airbrushing software that has been "trained" in human beauty. Exceptionally fast and easy to use, and capable of the highest quality touch up, it lets you improve your photos instantly, just by moving sliders. With Portrait Professional, it's incredibly fast and easy for any photographer to enhance all aspects of the face and hair of the subject: Fix skin blemishes such as spots or pimples in a fraction of the time that conventional touch up software would require. Reduce and/or remove wrinkles. Remove grease, sweat or unsightly shine from the skin. Subtly reshape all or any aspect of the face to reduce the apparent weight of the subject or make the face subtly more attractive. This is powerful technology that you do not have to fight with, as it requires no specialist skill or knowledge to bring out the beauty in your portraits. Improving Art History uses the application Portrait Professional 9 with limited features: The application assures me that the human face hence its shape and expression is "improved" therefore leading to "before and after" results such as in glossy magazines. The faces are barely altered, lips become fuller, bone structures are slightly modified leading to almost invisible "improvements."