Choosing A File Format For The Web - Adobe PHOTOSHOP ELEMENTS 2 User Manual

Viewing optimization information
Underneath your image in the Save For Web dialog
box, the annotation area provides valuable optimi-
zation information. The annotation for the
original image shows the file name and file size.
The annotation for the optimized image shows the
current optimization settings, the size of the
optimized file, and the estimated download time
based upon the selected internet access speed.
To view your image's estimated download time:
Click the triangle located to the right of the
1
optimized image to view the Preview pop-up
menu.
Choose an Internet access speed, including
2
modem, ISDN, cable, or DSL internet access.
When you change the internet access speed, the
estimated download time in the annotation area is
updated. If the download time seems too long, try
different optimization settings or change the
image size in the Save for Web dialog box.
Previewing variations in color display
When optimizing an image for the Web, consider
how the image will appear on different monitors.
In general, an image appears darker on Windows
system than on Mac OS computers You can
simulate cross-platform display differences in the
Save For Web dialog box.
To preview variations in color display:
Click the triangle to the right of the
1
optimized image to view the Preview pop-up
menu.
ADOBE PHOTOSHOP ELEMENTS 2.0
2 Choose a display option:
Uncompensated Color (the default option) to
•
view the image with no color adjustment.
Standard Windows Color to view the image
•
with color adjusted to simulate a standard
Windows monitor.
Standard Macintosh Color to view the image
•
with color adjusted to simulate a standard
Macintosh monitor.
Document Color Profile to view the image with
•
its color profile if one exists for it. For more
information on color profiles, see "Setting up
color management" on page 31.
Note: These preview options adjust color display
only in the Save For Web dialog box; they don't
change colors in the original or optimized image.
Choosing a file format
for the Web
The file format you choose for a Web image is
determined by the color, tonal, and graphic
characteristics of the original image. In general,
continuous-tone images, such as photographs,
should be compressed as JPEG files. Illustrations
with large areas of solid colors and crisp details,
such as type, should be compressed as GIF or
PNG-8 files. In addition, to animate an image, you
must save it as a GIF file.
PNG-24 file format is suitable for continuous-tone
images. However, PNG-24 files are often much
larger than JPEG files of the same image. PNG-24
format is recommended only when you are
working with a continuous-tone image that
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User Guide