FileInfo.com


.PNG File Extension


File Type Portable Network Graphic
File Format File
Common? No
File Description Image format that uses indexed colors and lossless compression (like a .GIF file), but without copyright limitations; cannot be animated like a GIF image, though the related .MNG format can.

PNG images may also include an 8-bit transparency channel, which allows the colors in the image to fade from opaque to transparent; GIF images only support fully opaque or fully transparent pixels; PNG images are now supported by most Web browsers.

Mac OS X 10.4 and later saves screenshots as PNG files.
Program(s) that open png files Mac: Apple Preview or Safari; The Logo Creator; Roxio Toast; Other picture viewer or Web browser
Windows: Microsoft Windows Photo Gallery Viewer; Corel Paint Shop Pro; ACDSee Photo Manager; ACD Systems Canvas; Roxio Creator; The Logo Creator; Other picture viewer or Web browser
Unix: GIMP - The GNU Image Manipulation Program

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/png