Serif's PhotoPlus Beginner's Guide Part 5. Looking at the Curves tool. The first part of the tutorial looks at the tool, what it can do and how to use it. The second part, I use just the Curve Tool on many layer to alter 2 images. One a portrait and the other a landscape image. This is all done for the Facebook Group - Fans of Serif Software and of course all YouTube users of PhotoPlus.