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>I have a ebook with the following stats,
> 46 HTML files total 234K
> 15 JPEG files total 331K
> total unzipped data 565K
> zipped size 477K
> plucked PDB size 1076K
> Zlib compression is on and images are requested at 256 colors.
> Isn't it strange to have a compressed ebook larger than the
> original uncompressed data?
It is strange, but certainly possible. JPEG is a pretty good
compression format; zip generally cannot improve on it.
Plucker can't handle JPEG directly, so it converts the image to
a bitmap (which will be much larger, even if they use the same
number of colors -- and they probably don't, for an EBook).
Even zipped, the 256-color bitmap may be much larger than the
original jpeg.
So the first question is:
If you turn images off, is the result smaller than 234K?
Another possibility is that the plucker file contains far more
than 46 HTML pages. Plucker isn't currently very good at saying
"these two are really the same; I only need to save one". There
is also a chance that the pluck "leaked". For instance, if the
title page linked to the site where the book was hosted, you
may have also plucked the home page and the title page for every
other book on the site.
-jJ
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