Operation Manual

Working with Graphics, Animation, and Multimedia 51
Here’s some very general advice on which Web image formats to use
when importing. There’s a great deal more detail on formats and
conversion options in online help—the topic referenced above is a
“must read”!
♦ Use the Import Picture button (or Insert/Picture... command) to
bring images into WebPlus, rather than pasting them via the
Clipboard. The fewer filter transformations an image has to
undergo, the better.
♦ Use the .GIF format for low-color, non-photographic images with
sharp edges—for example charts or screen-capture text. The
format is limited to 256 colors, so it’s fine for grayscale photos as
well.
♦ For photographic images and high-color, soft-edged graphics,
.JPG rather than .GIF is the preferred format.
♦ With JPEGs, image quality goes down (along with file size) as the
compression setting increases. With high compression, some
images may still look fine, but photographs in particular will
visibly degrade. Preview your site, and let your own eye be the
judge. You can adjust the global or local settings for .JPG
compression as required.