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.PNG File Extension

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File TypePortable Network Graphic

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CategoryRaster Image Files


This file is saved in a binary format, which requires a specific program to read its contents.


Image file stored in the Portable Network Graphic (PNG) format; contains a bitmap of indexed colors and uses lossless compression, similar to a .GIF file but without copyright limitations; commonly used to store graphics for Web images.

More Information

The PNG format was created in response to limitations with the GIF format, primarily to increase color support and to provide an image format without a patent license. Additionally, while GIF images only support fully opaque or fully transparent pixels, PNG images may include an 8-bit transparency channel, which allows the image colors to fade from opaque to transparent.

PNG images cannot be animated like GIF images. However, the related .MNG format can be animated. PNG images do not provide CMYK color support because they are not intended for use with professional graphics. PNG images are now supported by most Web browsers.

Mac OS X 10.4 and later saves screenshots as PNG files. Ubuntu Linux also stores print screen screenshots in the PNG format.

Common PNG Filenames:

Screen Shot YYYY-MM-DD at HH.MM.SS PM.png - The name given to screenshots taken in Mac OS X, where a timestamp is included in the filename.

Program(s) that open .PNG files
Microsoft Windows LogoWindows
Microsoft Windows Photos
Microsoft Windows Photo Viewer
Microsoft Paint
Adobe Photoshop CC 2015
Adobe Photoshop Elements 13
Adobe Illustrator CC 2015
CorelDRAW Graphics Suite X7
Corel PaintShop Pro X8
ACD Systems ACDSee 18
ACD Systems Canvas 15
Roxio Creator NXT Pro 3
Other picture viewer
Other Web browser
Mac OS X LogoMac
Apple Preview
Apple Photos
Apple Safari
Adobe Photoshop CC 2015
Adobe Photoshop Elements 13
Adobe Illustrator CC 2015
Roxio Toast 14
MacPhun ColorStrokes
Other picture viewer
Other Web browser
Linux LogoLinux
Other picture viewer
Other Web browser
Web LogoWeb
Google Drive
Microsoft OneDrive
iOS LogoiOS
Google Drive
Pixelmator 2
Microsoft OneDrive
Android LogoAndroid
Google Drive
Microsoft OneDrive
Updated 9/25/2015