Originally Posted by Britomart
I am almost embarrassed to ask, but where does one get these plugins? They sound extremely useful, but I have never heard of them before.
Do you add them to Calibre?
Yes in the plugin screen on Calibre click Get New Plugins
and you will find a whole bunch of goodies. I've got Epubsplit and Epub merge and several metadata plugins. Cover Resize one is another one I love. Oh and Generate Cover for those books that need one. My most favorite is mobi unpack. It extracts the content of a mobi file allowing me to edit it!
It also extracts the new KF8 into a epub so there's no need to convert.