There are two main types of digital image formats, raster and vector. Most people are familiar with raster formats as this is what type of file your phone stores your photos in. Raster images consist of many rows of dots, or pixels of different colors that combine to create your image. Common raster formats are .jpg, .png, and .tiff. Vector images consist of lines, paths, and shapes that make up the images. These file types are infintely scalable without distortion. These file types are commonly created in adobe illustrator and have common file type extensions of .ai, .eps, or .pdf. For best print quality and clarity we prefer vector formats, but can make your sticker from both file types. Raster images should have a minimum resolution of 300dpi.