Please help with different file size??

[oldnslow]

When in aperture the file size of a picture is 4.68mb, and when i drag the photo to a file on my desktop, the file size goes down to 268kb!! Can someone tell me why this is happening?

Thanks

David

 

[psxguru]

The larger file size is the original master file held in Aperture, when you drag to the desktop you are dragging a version of it (using your default export version preset e.g. 800x600 jpg). Hence the smaller file.