Originally Posted by grannyGrumpy
@Kovid, YES! that was the problem, I had @font-face rules on an in-line CSS for one of the xhtml files. (I didn't know that would cause trouble.) I have now done a successful conversion, using the subsetting feature.
Thank you for the speedy reply. You ROCK, and Calibre is the greatest thing since sliced bread.
Now, did you take the subsetted fonts from the converted ePub and replace the fonts in the original ePub and edit the CSS & OPF if any of the font files were deleted for not being in use?