Originally Posted by Iankilmister
Thanks for the information JSWolf
I'm trying Epub too, but the lack of Epub editors make it a bit hardder than whit lrf.
Ive been formating the htm with Book Designer and then making the epub with Sigil, but the software is still kinda slow.
Will try indesign for next books I guess
InDesign works fine for ePubs. Epubs can be either left justified or full-justified; if you have full-justification set, you'll run into the same problem because of the no-hyphenation issue.
Just a point to consider: I think Calibre has a LRF setting to force left-justification. If you want to stay with LRF, you might look into that.
If you want full justification to look good (with hyphens, an optical margin, etc.), your only acceptable option at this point is to use either InDesign or TeX to produce a PDF.