The PNG Guide is an eBook based on Greg Roelofs' book, originally published by O'Reilly.

WWW Browsers and Servers

Since the Web is where some of PNG's more uncommon features--alpha, gamma and color correction, two-dimensional interlacing--are most apparent and useful, it makes sense to begin our coverage of PNG-supporting applications with a look at web browsers and web servers.

Like all of the application chapters, this one has aged a great deal since 1999--at least, the browser part of it has. (The status of web servers is virtually unchanged.) With the exception of the final rows in Tables 2-1 and 2-3--which describe the level of PNG support in Netscape Navigator and Microsoft Internet Explorer, respectively, something that continues to be of particular interest to readers of this book--I have not updated the text in any way. However, the PNG web site is updated regularly and includes both a general summary of browser status and a complete list of PNG-supporting browsers:

It complements the more detailed and explanatory information presented in this chapter.

Last Update: 2010-Nov-26