ZAppLink is a ZBrush plugin that allows you to seamlessly integrate your favorite image editing software — such as Adobe Photoshop — into your ZBrush workflow. While in ZBrush, call up your image editing package and use it to modify the active ZBrush document or tool, then go straight back into ZBrush.
ZAppLink can work on different saved points of view for your model. What you paint in your image editor is then projected to the model’s PolyPaint or texture for more creative freedom.
With ZAppLink you can combine ZBrush’s powerful capabilities with all the painting power of the PSD-capable 2D editor of your choice, making it easy to create stunning textures.
ZAppLink for ZBrush 4 has now moved out of the public beta stage and is ready for general use. Please follow the installation instructions listed at ZBrushCentral for a new installation or to update from the beta version.