APNG Edit - https://addons.mozilla.org/firefox/addon/5519
A firefox extension to allow the creation and editing of APNG files. |
APNG Specification - http://wiki.mozilla.org/APNG_Specification
An extension of the PNG image format, adding support for animated images. Includes full specification including file structure and version changes. |
http://www.libpng.org/pub/png/ - http://www.libpng.org/pub/png/
Information, applications, and code relating to the PNG image format. |
MSDN - AlphaImageLoader Filter - http://msdn.microsoft.com/en-us/library/ms532969.aspx
Displays an image within the boundaries of the object and between the object background and content, with options to clip or resize the image. When loading a Portable Network Graphics (PNG) image, transparency from zero to 100 percent is supported. |
Open Source Graphics with PNG - http://www.linuxtoday.com/news_story.php3?ltsn=1999-09-09-021-04-PS
Joe Barr discusses PNG, the new open source file format, and the Unisys/CompuServe/GIF controversy. [LinuxWorld] |
PNG Resources of the Miscellaneous Persuasion - http://www.libpng.org/pub/png/pngmisc.html
Links to images, mailing lists, test images, PNG and image compression documents, comics and websites using PNGs, the official site, and some unofficial resource sites. |
PNG Specification - http://www.w3.org/TR/REC-png-multi.html
The official W3C recommendation specification for PNG. |
PNG Tips for Cartoonists - http://hackles.org/etc/png.html
Article written to encourage cartoonists to use PNG and to share tips on exploiting PNG's strengths. |
PNG-Tech - http://optipng.sourceforge.net/pngtech/
A collection of comments, impressions, comparisons, experiments and ideas regarding the PNG (Portable Network Graphics) file format, and related technologies: ZLIB (Data Compression Format and Library), and MNG (Multiple-Image Network Graphics). It is focused on the compression algorithms used in PNG. |
PngCrush - http://pmt.sourceforge.net/
Includes various free tools to create and manipulate PNG and MNG images, including an optimizer that can reduce the size of PNG images and a converter that can import BMP files. |
Portable Network Graphics - PNG - http://www.mywebsite.force9.co.uk/png/
Thorough introduction to PNG image format. |
The Sad Story of PNG Gamma Correction - http://hsivonen.iki.fi/png-gamma/
Explains how PNG gamma "correction" causes color mismatches with other colors on web pages. |
The Story of PNG - http://www.libpng.org/pub/png/slashpng-1999.html
An article detailing the history of the PNG format. |
W3C: PNG - http://www.w3.org/Graphics/PNG/
W3C overview of PNG. Includes browser tests to see if gamma and alpha work correctly. |