Portable Network Graphics

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Portable Network Graphics
PNG transparency demonstration 1.png
PNG transparency demonstration 2.png
A PNG image wi an 8-bit transparency channel (tap). The same image is owerlaid ontae a checkered backgrund (bottom), typically uised in graphics saftware tae indicate transparency.
Filename extension .png
Internet media type image/png
Teep code PNGf
Uniform Type Identifier (UTI) public.png
Magic nummer 89 50 4e 47 0d 0a 1a 0a
Developit bi PNG Development Group (donatit tae W3C)
Ineetial release 1 October 1996 (1996-10-01)
Teepe o format lossless bitmap image format
Extendit tae APNG, JNG an MNG
Staundart ISO/IEC 15948,[1] IETF RFC 2083
Appen format? Yes

Portable Network Graphics (PNG /ˈpɪŋ/[2] PING), or PNG's Not GIF,[3] is a raster graphics file furmat that supports lossless data compression. PNG wis creatit as an improved, non-patentit replacement for Graphics Interchange Format (GIF), an is the maist uised lossless image compression format on the Internet.[4]

References[eedit | eedit soorce]

  1. "ISO/IEC 15948:2004 - Information technology -- Computer graphics and image processing -- Portable Network Graphics (PNG): Functional specification". Retrieved 2011-02-19. 
  2. "History of PNG". Libpng.org. 29 May 2010. Retrieved 2010-10-20. 
  3. http://www.youtube.com/watch?v=1Uw_ENS6rAU
  4. Matthias Gelbmann (January 31, 2013). "The PNG image file format is now more popular than GIF". W3Techs. Q-Success. Retrieved March 22, 2013. PNG is now used on 62.4% of all websites, just ahead of GIF with 62.3%.