Originally Posted by JSWolf
If you are using the commane line, I suggest using the --base-font-size option.
ebook-convert eBook.epub .lrf --margin-top=0 --margin-bottom=0 --margin-left=0 --margin-right=0 --base-font-size=10
Wouldn't inserting a specific font size tend to lock the size on the reader? (You would think having no font specified there, the way it is now, would allow resizing.)