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
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