only if recompression takes place. 90 degree rotation means changing the JPEG header. file has to be written, but no recompression takes place.

Herb....
----- Original Message ----- From: "Leon Mlakar" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, June 13, 2005 6:23 PM
Subject: RE: RAW v JPEG


And there's one more thing people tend to forget - each time one opens,
possibly modifies and saves a JPEG back to the file more of the image data
gets thrown away. Even with high quality JPEGs these things do accumulate


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