This type of file is ideal for Web use. In this format, the logo will retain the correct colors when displayed on a computer screen.
This is a standard file format for office software and can be downsampled/downsized for Web use. The artwork is saved at a large size, and should print/reproduce at high quality.
Portable Network Graphics (PNG)
This file can be used in most office software, including PowerPoint and Word, and allows for transparency in areas where there is no artwork (allowing background colors to show through).
Original vector-based Illustrator artwork, saved with an Encapsulated Postscript (EPS) header
This is a preferred file format for professional printing and publishing. Being vector-based, the artwork will scale large and small and print at the maximum resolution of the output device.
SLAC National Accelerator Laboratory logo and word mark in white with transparent background
PNG file (Please note that unless this logo is layered on top of a dark background, it will not be visible.)