There are many graphic image file formats - more than
necessary to list here. The most frequently used ones
are listed below:
file formats listed below do not include the proprietary
file formats created by the graphics applications
when you save files.
For Web Pages:
GIF - Graphics Interchange Format
- Images using a fixed color palette (limited to only
256 colors - not the full spectrum of colors available
to your monitor). The GIF format uses compression for
smaller files and faster downloads. This format is best
for images with solid colors or areas of uniform color
such as illustrations and logos.
JPEG - Joint Photographic Experts
Group - Used for photographic (continuous tone) images.
Unlike GIF files the JPEG format can take advantage
of the full spectrum of colors available to your monitor.
The JPEG format also uses compression for smaller files
and faster downloads. However, unlike the compression
method used in GIF files, the JPEG compression is "lossy"
which means it discards data in the process. Once a
file is saved in JPEG format the data is permanently
lost. If you want all the image data available for future
use, save the image using no compression or "lossless"
compression and make JPEG copies from it.
For Printed Documents:
TIFF - Tagged-Image File Format - Used for bitmaps only.
The TIFF format is supported by virtually all graphics
EPS - Encapsulated PostScript®
- A file format used for both vector graphics and bitmaps.
EPS files contain a PostScript description of the graphic
data within them. EPS files are unique in that you can
use them for vector graphics, bitmap images, type or
even entire pages.
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