We except any type of art files. Vector files work best. Example of vector file are adobe illustrator files .ai or .eps. With raster files(.jpg, .gif, .png ect) Keep in mind the bigger the file the better the resolution. Vector files keep resolution when increasing in size.
There are two main type of image files: Raster and Vector. Raster images are created with pixel-based programs or captured with a camera or scanner. They are more common in general such as jpg, gif, png, and are widely used on the web. Vector graphics are created with vector software and are common for images that will be applied onto a physical product.
Vector graphics are scalable
Because vector graphics are not composed of pixels they are resolution-independent. The vector shapes – also called objects – can be scaled and printed at any size without losing quality. It can be printed as large and at the highest resolution the printer or the output device allows.
Raster / Bitmap Images
Pixel-based images represent and edit photographs and photo-like images better than vector programs because they can use an abundant number of different color pixels. By arranging pixels and slowly incrementing or changing the color or shade of the pixels adjacent to them, it creates a subtle gradation from one color to another: nice and smooth color blends.
Raster images’ dimensions are measured in pixels. Because raster images cannot be enlarged without losing quality, printers require that you provide them with files at the correct size: 1 the dimension you want to print your image at, and 2. the pixel resolution for that particular project. The pixel resolution is the amount of pixels within each inch called ppi (pixels per inch).