Here I'd like to recommend you this Vibosoft ePub Editor Master, which is recognized as the best
ePub editing program.
Sigil: this is
an Epub editing program Adobe Digital Editions: will allow you to view your Epub Calibre: will allow you to convert your epub (nook format) to Mobi (kindle format) Kindle Previewer: To preview your mobi file
Not exact matches
If you look at the guts of large
epubs within Calibre's
edit program, you'll see all manner of wasted space, including embedded fonts and tons of graphics that aren't needed.
As a great
ePub editing tool, this
program has a clear interface, so that you can modify the fonts and paragraph styles easily.
This
program can be used not only to
edit your
ePub files but to make entirely new
ePub books depending on your needs.