Off topic, but, interesting question anyway.
You can compress pictures taken by your phone.
A shrinking of 2 or 4, or more can be obtained with no visible difference.
You can also collect a set of pictures in a single djvu album.
The viewer (djview) is able to zoom very fast.
Unfortunately
Anyone using djvu?
http://en.wikipedia.org/wiki/DjVu
http://www.djvu.org/
Just curious.
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Martin Schöön
http://hem.bredband.net/b262106/index.html
A number of years back I was very excited about DJVU and used it to
compress my scanned documents. But at a certain point did I realize that
scanned bitmaps (as well as TeX'd documents width pk fonts) in PDF were
just as small, and I stopped using it, as PDF is much more widely
available. I'm not
