When you're creating a design for a sticker, it's best if you can save it as an Adobe Illustrator EPS file. This file should have two layers - one with your artwork and another with an outline of the shape you want your sticker to be. This outline will show us where to cut the sticker. The line for the outline should be at least .25pt thick.
It's also important to make sure that your image is high quality. You can do this by making sure the resolution is 300dpi or higher. Finally, we accept the CMYK file format for printing.
Follow the link to our blog where we have an in depth tutorial on how to do this properly!