If you want to create linearizations and ICC profiles with a white underlay, we recommend you configure one or more flood fill white layers for white based on the desired opacity for your application and one layer for CMYK data.
Configure Flood Layers
NOTE
You can always go back and change the layer configurations after you have completed the processes that requires such a configuration. Keep in mind though that if you use one or two layers of white it will affect output color rendering and overall density.