Posted: 2006-02-28T20:24:51-07:00
The JPEG quality is not stored in the JPEG image, it is estimated. Looks like Fireworks has a problem estimating the correct JPEG compression quality.
Use https://github.com/ImageMagick/ImageMagick/discussions instead.
https://imagemagick.com/discourse-server/
https://imagemagick.com/discourse-server/viewtopic.php?t=5986