Re: converting JPG to lesser quality

I've often wondered a similar question:
A progressive JPEG is transmitted in multiple passes of the
image. Is it possible to remove the 
last pass to save bandwidth/space?
~Seth

> Today I got a bunch of jpegs coming from a digital cam.
I wanted to 
> pass these picture along to someone else but the
pictures should 
> be a step lesser in quality, such that I still own the
"better copies"
> and also to prove me as having the ownership of the
files.
> 
> I saw no quick way other than passing -resize 90% on
the command line
> 
> mogrify -resize 90% *.jpg
> 
> which worked but is there also a switch to keep picture
size and just 
> lower the jpeg quality?
> 
> --
> Chris Christoph P. U. Kukulies kuku_at_kukulies.org
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> 

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