Supported Graphics File Formats

Internet File Formats:

JPEG (Joint Photographic Experts Group)

This format is commonly used to display photographs and other continuous-tone images on World Wide Web sites. Unlike the GIF format, JPEG retains all the color information in an RGB image. JPEG also uses a compression scheme that effectively reduces file size by identifying and discarding extra data not essential to the display of the image. The JPEG compression scheme is a lossy compression. This means that once an image has been compressed and then decompressed, it will not be identical to the original image. A higher level of compression results in lower image quality, while a lower level of compression results in better image quality. In most cases, compressing an image using the Maximum quality option produces a result that is indistinguishable from the original.

GIF (Compuserve Graphics Interchange Format)

GIF is the file format commonly used to display indexed-color graphics and images in World Wide Web sites. GIF is a compressed format that is designed to minimize file transfer time over phone lines.

When saving an image as GIF, you can specify how the image appears as it is downloaded. Select Interlaced to display the image gradually in increasing detail as it is downloaded.

PNG (Portable Network Graphics)

PNG is a replacement for the GIF format. It is a full-featured (non-LZW) compressed format intended for widespread use without legal restraints. It is a lossless format like GIF but usually with better compression and no limitation to 256 colors.