Vector and pixel are actually 2 different things. Programs like
Illustrator, Freehand and Corel Draw to name a few save there images
in Encapsulated Postscript formats known as Vector Art. Each element
is a mathematical equation that specifically maps out each shape,
color and position. Vector images can be enlarged from a very small
size to as large as a billboard without any loss of quality. Pixels on
the other hand are the small dots that make up a photograph or picture
in a psd, tiff, jpep or other image format. When you try to increase
the size of this type of image, the quality decrease because the space
between each pixel has to be interploted and gets very, very
pixelized. You can actually see the blocks that make up the image. It
is like the screen in a printed photograph in the newspaper that you
look at with a magnifying glass. Hope this might help. - posted by
Printtrax on October 25, 2007

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