If you want to change the strokes of the icons, combine them, and make new ones, you’ll want to use a vector editing software program to open the includes AI or EPS source files. Not all software programs will be able to open AI files. So we also include EPS files as they have wider support. All of the software listed below have articles on their site and other places online if you decide you want to customize icons yourself instead of hiring a designer. If you’re not already familiar with using a vector software programs, you may want to hire a designer to make the customizations for you.