It actually increases the size of some files. http://i.imgur.com/E1mL2.png http://i.imgur.com/E1mL2.png 10,842 bytes -> 15,863 bytes (a 46% increase). Which

It actually increases the size of some files. http://i.imgur.com/E1mL2.png http://i.imgur.com/E1mL2.png 10,842 bytes -> 15,863 bytes (a 46% increase). Which is dumb, in cases like this it's better to return the original file.