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Subject:
JPEG compression
From:
Emil Huston <[log in to unmask]>
Reply To:
SciArt-L Discussion List-for Natural Science Illustration- <[log in to unmask]>
Date:
Fri, 13 Feb 1998 12:25:59 -0500
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     It is not recommended that you edit and save a JPEG file more than
     once - it loses quality each time it's resaved no matter how high your
     compression ratio is. Work on your image in Photoshop, save a copy as
     PSD or TIFF, and a second one as a JPEG.

     JPEG does work well for photographic images, but does not work for
     images less than 24-bit. As a general rule you may consider using GIF
     for line art, illustrations and such, and JPEG for photo-type images.

     Emil

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