[PNG icon] Other PNG Links and Stuff

Greg has an entire page of PNG images, both inlined and linked, for those who want to get their hands on some right away. In addition, here's an inlined PNG version of the small PNG icon used just above and on the other PNG pages; the GIF version is 1243 bytes, but the PNG version is only 762 bytes. It's also linked to an interlaced PNG version of the black 256x192 logo at the top of the main page:

(This will show up as a broken image for many folks...
[PNG icon]
...if it does for you, you need a PNG-supporting browser.)

The PNG logo and PNG icons are explained on Greg's PNG-interlacing demo page (which is the GIF / JPEG version of the PNG-images page mentioned above).

Here is the 1995/1996-era authors' collage:

[PNG authors]

As promised, it is one nasty-looking group. Yow! Brings to mind the old joke about the doctor who slapped the kid's mom. :-) Fortunately this is only the small, fuzzy version; if you want the big, really nasty one, you'll have to follow the link. As befits a collage of image-format authors, the large version is only available in PNG format. In other words, you'll need a PNG-supporting image viewer to look at it. Patience would be good, too. (It's 1,130,208 bytes long.)


There are three official PNG mailing lists, hosted at Washington University in St. Louis (Missouri) courtesy of Adam `Seven' Costello.

To subscribe or unsubscribe to any or all of them, send mail to majordomo@ccrc.wustl.edu with the word HELP in the body of the message.

The three mailing lists are:

Theoretically the png-announce list is received by more people than any other and should be used for all announcements of new libraries, new PNG-supporting applications, and so forth.

All three lists are archived, as well. Note that membership in the PNG Development Group (in the sense of being able to vote on new chunks or modifications to the PNG specification) is contingent upon having first posted to one of the PNG mailing lists at least six months prior to the current date.

There is additionally a list devoted to the specification of a multi-image (and possibly multimedia) metaformat; again, send mail to majordomo@ccrc.wustl.edu to subscribe to it:

Note that MPNG was a temporary name for the new format; the real name is MNG. See the MNG Home Site for details.

Finally, there is a list devoted to the specification of a lossy (as opposed to lossless), compressed, single-image format; once again (do you sense a pattern here?), send mail to majordomo@ccrc.wustl.edu to subscribe to it:

Greg fervently hopes PNP is a temporary name as well; it sounds way too much like Plug 'N' Play. (It's supposed to stand for Portable Network Photos or some such, but since it seems to be heading in a wavelet-based direction, Greg is of the fond belief that Wavelet-based Network Graphics or WNG is much better and more pronounceable name/acronym pair, even if it's a tiny bit of a misnomer.)


PNG documentation has moved to its own page.


[1/16-size image of pngs.html page being viewed with Arena] Here is a list of PNG home pages by others in the PNG development group:


Official and unofficial PNG test images are also available, including:


The following are some miscellaneous pages related to PNG or image compression:


And here are some third-party web pages that have switched to PNG, in whole or in part. (This is by no means an exhaustive list.)


The official PNG ftp site is hosted by the Southwest Research Institute in Texas, courtesy of Keith Pickens. UUNET Technologies in Virginia (USA) is the host of the primary mirror site. (They are also host of the official Independent JPEG Group ftp site, by the way, and TIFF information is available there as well.) And the Higher Education National Software Archive (HENSA) in the United Kingdom also mirrors SwRI; this site has a WWW interface as well.


Here are the other PNG-related resources at this site:


Last modified 18 February 1999 by newt@pobox.com , you betcha.

Copyright © 1995-1999 Greg Roelofs.