What Does it Mean .png .gif .pdf .jpeg and so on

Have you every wondered what those little things mean at the end of an image or document? Well here you go

.jpeg

Joint Photographic Experts Group (development group for lossy compressed 24 bit color image storage format; also a file extension)

.gif

GIFGraphic Interchange Format

.pdf

Portable Document Format – is a file format that has captured all the elements of a printed document as an electronic image that you can view, navigate, print, or forward to someone else

.png

Portable Network Graphics is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace GIF (Graphics Interchange Format) as an image-file format not requiring a patent license

.dmg

disk mounted graphic OSX

.tiff

Tagged Image File Format

CGM

Computer Graphics Metafileis a file format for 2D vector graphics, raster graphics, and text

EPS

Encapsulated PostScript

SWF

shockwave Flash

If you would like to learn even more check out this link

http://en.wikipedia.org/wiki/Image_file_formats