New Graphic Standards: File Types
Encapsulated Postscript (EPS)
The EPS format should be used for Microsoft Word, Photoshop, and any other application that supports the EPS format. This format can be re-sized while retaining smooth edges in the graphic.
- You need a PostScript printer to print a page or file that contains an EPS image.
- EPS images can be resized without loosing their sharpness. ALWAYS resize proportionately.
- PhotoShop will convert an EPS image to a bitmap. The imported images' resolution will depend on the resolution you choose when opening the file.
Graphic Interchange Format (GIF)
The GIF format should be used for Web pages, or whenever you need to print to a non-PostScript printer. Non-Postscript printers include many laser printers, most inkjet printers, and dot matrix printers.
- These images should not be re-sized without first converting to 300 dpi, as they will become very rough-looking. Use the EPS version if possible.
Portable Network Graphic (PNG)
The PNG format should be used for PowerPoint presentations. It offers transparency and can be used with color or image backgrounds. The png transparency is not supported by all browsers, and should not be used in web pages.