On Thu, 25 Feb 1999 18:21:12 +0800, you wrote:

>see attachment
1) don't post binaries to this list - post a link to a webpage or
email only to those interested.
2) Never use JPEG for line-art. This image saved as a 2-colour GIF is
one-TENTH of the size of the file you posted, and  would also come out
clearer due to the lossless nature of the compression.

JPEGS are optimised for PHOTOGRAPHS ONLY and suck big-time for
anything else. Similarly you should never use GIFs for photographs -
JPEG will always be substantially more efficient.