05-06-2008, 05:45 PM
I just gave it a try.
PS save for web: 19.36KB (note that B is Byte and b is bit)
Finder: 20KB (20,096B [= 19.36KB])
Mail.app: 32KB
So here's the deal, PS gives the actual file size. The Finder gives it based on the number of blocks it takes up. Get Info shows the real size as well, which matches PS. Mail.app gives the message size, so that's probably the size it takes up in blocks as well as the size of the message too.
PS save for web: 19.36KB (note that B is Byte and b is bit)
Finder: 20KB (20,096B [= 19.36KB])
Mail.app: 32KB
So here's the deal, PS gives the actual file size. The Finder gives it based on the number of blocks it takes up. Get Info shows the real size as well, which matches PS. Mail.app gives the message size, so that's probably the size it takes up in blocks as well as the size of the message too.