Saving Images in
JPEG format is commonly used to display
photographic and other continuous-tone images on the Web. The JPEG
format retains all color information in an RGB image but compresses
(reduces) file size by selectively discarding data. A higher level
of compression results in lower image quality, and a lower level of
compression results in better image quality.
Saving an image in JPEG format opens
the JPEG Compression window:
- Move the slider to select a
compression value between 0 (best quality, largest saved file size)
and 100 (worst quality, smallest saved file size). The preview
window will display in real time what the image will look
- For display on the Web, check the
Progressive Encoding checkbox if you want the image to open
progressively as it loads (as opposed to opening all at once after
it has completed loading).
- Click OK.