Notes about Graphics File Formats
Each logo on this site is available in four versions: Vector EPS, Adobe Illustrator PDF, Indexed-color GIF, and Microsoft Portable Network Graphic PNG.
EPS (Encapsulated PostScript) is the preferred format for use in high-quality offset printing. EPS files are scaleable without loss of resolution, and retain color separation specifications. EPS files also have transparent backgrounds. IIT EPS logo files are saved with a color TIFF preview supported by both Mac OS and Windows graphics applications.
GIF logo files are 72dpi (screen resolution) indexed-color images. They are optimized for cross-platform use on the Internet. IIT GIF images have a transparent background (where applicable) and a matte color of white.
PDF (Portable Document Format) is a universal file format that preserves the fonts, images, and layout of source documents created on a wide range of applications and platforms. Adobe PDF is the standard for the secure, reliable distribution and exchange of electronic documents and forms around the world. These logos have been saved as Illustrator-editable pdfs. They can be imported into many desktop publishing programs as well as MS Word and Powerpoint.
PNG (Portable Network Graphics) is used for lossless compression and for display of images on the web. Unlike GIF, PNG supports 24-bit images and produces background transparency without jagged edges; however, some web browsers do not support PNG images. PNG preserves transparency in grayscale and RGB images. PNG can also be used in Microsoft Office applications such as Word and Powerpoint.