Details about PNG

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Date Added Extension Description MIME Type
2007-10-13 PNG Portable Network Graphics. Raster image. image/png
2004-02-21 SNG Scriptable Network Graphics. An ASCII text version of PNG. See the SourceForge SNG project page for a command line tool that converts between SNG and PNG

Third Party Resources

Title Description
Books Compressed Image File Formats
Books Encyclopedia of Graphics File Formats, 2nd Edition

The contents have been generously released under a Creative Commons/Attribution license, and are available here on FileFormat.Info.

Books PNG: The Definitive Guide Everything you ever wanted to know about PNG files. The full text is available online at
Websites The World Wide Web Consortium (W3C) The World Wide Web Consortium was created in October 1994 to lead the World Wide Web to its full potential by developing common protocols that promote its evolution and ensure its interoperability. W3C has over 350 Member organizations from all over the world and has earned international recognition for its contributions to the growth of the Web.


Type File name Description Size
'sample' 3d.png test 11,548
Sample File MARBLE24.PNG 2,081,345
Sample File MARBLE8.PNG 620,524
Specification PNG10.TXT 123,121

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