C# - Resizing Images On The Fly, Or Storing Different Sizes On Disk?

Aug 12, 2010

I'm building a Web application that will eventually contain a lot of images. These images will need to be displayed in different formats across the site. What would be the pros/cons of the two solutions:

Storing various versions of the picture when they are uploaded (e.g. thumb, small, medium, large, verylarge)
Resizing the image through the URL - e.g. /Content/Image/1?height=300

Edit:I had a really hard time accepting one answer over the other, so for anyone reading this q/a, take your time to read both answers because the accepted answer was selected by the flip of a coin :) They're both equally good.

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