[moehoward]

"Also, they’re stored as tiffs because, face it, jpg is not a format to use for this kind of thing -it’s compressed and loses a fair bit of data, which also means that if you try to blow it up furter you’re out of luck."

Saving as tiff after jpg compression does not improve the image quality or remove the previous lossy jpg compression. And jpg is fine as long as the resolution is relatively high (in this case the same as the original) and the amount of compression low.

[Hardraade]

Saving as tiff after jpg

Of course. What do you think I am, a moron??

This is straight to tiff. Never been folded, spindled or mutilated in the jpg machine :)).