Provided by: calibre_4.99.4+dfsg+really4.12.0-1ubuntu1_all 

NAME
lrfviewer - lrfviewer lrfviewer [options] book.lrf Read the LRF e-book book.lrf Whenever you pass arguments to lrfviewer that have spaces in them, enclose the arguments in quotation marks. For example: "/some path/with spaces"
MOŽNOSTI
--disable-hyphenation Disable hyphenation. Should significantly speed up rendering. --help, -h zobraziť túto nápovedu a skončiť --profile Profile the LRF renderer --verbose Print more information about the rendering process --version zobraziť verziu programu a skončiť --visual-debug Turn on visual aids to debugging the rendering engine --white-background By default the background is off white as I find this easier on the eyes. Use this option to make the background pure white.
AUTHOR
Kovid Goyal
COPYRIGHT
Kovid Goyal 4.12.0 marca 06, 2020 LRFVIEWER(1)