Graphics: PNG

started by Mattman on Jan 8, 2004 — RSS Feed

Mattman Mattman
Posts: 9

PNG seems like a geat graphics format but does anybody use it? How well is it supported in browsers?

Joe Gillespie Joe Gillespie
Posts: 528

PNG-8 is a good alternative to GIF, usually giving a smaller file size. Most browsers support PNG at a basic level but support for some of the more interesting transparency and gamma correction features is still sketchy.

For a while, when it looked like GIF usage was going to be restricted because of patent problems, people experimented with PNG-8 but I don't think it has really taken off.

PNG-24 is less useful. JPEGs always come out smaller - but if you need the alpha channel support for multiple levels of transparency, it's the only option.

Tzunami Tzunami
Posts: 4

PNG 24/32 is however very important as the main format used by Fireworks - it has the advantage (although not always utilised) of having the ability to hold vector and bitmap information.
You'll find it's almost always worth keeping the base Fireworks files you eventually export to GIF or JPEG, so you can easily edit them in the future

Jdenny Jdenny
Posts: 65

I made this a short while ago: http://dev.jdenny.co.uk/image_formats/comp.html

I quick and dirty (and incomplete) guide to choosing what image formats to use in web pages. PLUS a fix to make IE display variable transparencie PNG's!!!  

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Posts: 171

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