For introductory tips on Web graphics in particular, visit Netscape's
Creating High Impact Documents and The WWW Developer's Virtual Library
Graphics section. The
latter contains a number of useful resource links, including introductions
to GIFs, JPEGs and a
comparison of GIF vs. JPEG. If you are using Adobe's Photoshop to create Web graphics, you
will definitely want to download the free GIF89a Export plug-in. The
plug-in, available for
Mac
Unix versions of Photoshop, allows you to automatically rasterize, select color palettes, anti-alias, and export
transparent GIF images. The plug-in is available for Adobe
Illustrator users, as well.
Finally, one of the most important elements in Web design is file size.
Learn how to keep the byte count low without sacrificing image quality at
sites like the
Bandwidth Conservation
Society, which offers some useful tips on optimizing graphics for the
Web. For a real step-by-step, in-depth tutorial on this subject, however,
take a look at Web Developer®'s own
Graphics
Performance Tuning.
Designing graphics for the Web starts to get a little more involved when it
comes to creating more complex images, such as image maps or animated GIFs.
Luckily, there are a growing number of easy-to-use programs specifically
designed to produce these types of enhanced graphics, many of which are
available as shareware. One of the best image map utilities for Mac is
WebMap, which
allows you to designate "hot spots" for hyperlinks using both primitive and
organic shapes. Likewise,
GIFBuilder for MAC is an equally popular tool in the animated GIF
arena.