The PNG (Portable Network Graphics) file format was created as the free, open-source successor to the GIF. The PNG file format supports truecolor (16 million colors). The PNG file excels when the image has large, uniformly colored areas.

The lossless PNG format is best suited for editing pictures, and the lossy formats, like JPG, are best for the final distribution of photographic images.

PNG, an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-color, grayscale, and truecolor images are supported, plus an optional alpha channel.

PNG is designed to work well in online viewing applications, such as the World Wide Web, so it is fully streamable with a progressive display option. PNG is robust, providing both full file integrity checking and simple detection of common transmission errors. Also, PNG can store gamma and chromaticity data for improved color matching on heterogeneous platforms.

Open PNG File on Windows

• Paint Shop Pro - lets you cover flaws in your photos by copying detail from a neighboring area.
  The software can support those file formats: JPEG, BMP, PNG, GIF, TIFF, PSP, JSL, PFR and TUB.
• ACDSee Photo Manager 2009
• Canvas 11
• Roxio Creator 2009
• The Logo Creator
• Other picture viewer or Web browser

Open PNG File on Mac

• Apple Preview
• Safari 4 Beta
• The Logo Creator
• Roxio Toast
• Other picture viewer or Web browser

Open PNG File on Linux

• GIMP - The GNU Image Manipulation Program