There are a few things you can do to help save a vector file in Photoshop. The first is to make sure that the file is properly named. If it isn’t, Photoshop will automatically fill in the name for you. Next, make sure that all of the layers are set to " Luminosity" or " Opacity." This will help keep the file looking clean and organized. Finally, make sure that all of the objects are set to " None." This will keep everything hidden from view.
