It's not 12 times. It's "12 level" jpeg quality. When you save a jpeg in 
photoshop, the save screen allowes you to choose a quality number. "12" is the 
maximum quality possible. It provides less compression than a lower number but 
with commensurately less degradation.
Paul


> In a message dated 12/6/2005 4:39:44 AM Pacific Standard Time, 
> [EMAIL PROTECTED] writes:
> True.  Closing a JPEG does not alter it in any way.  Saving it  
> recompresses the data, with commensurate loss.
> 
> However, if you always save JPEGs at the highest quality (12 in  
> Photoshop) the loss will be minimal.  You can resave JPEGs saved at  
> 12 several times before the loss becomes evident.
> 
> Bob
> =======
> Where do you get this 12 times figure? When I was working with graphic files, 
> admittedly not photographs, it seemed to me there was a degradation after the 
> second resave.
> 
> Marnie aka Doe
> 

Reply via email to