ddjvu: Invalid option '--version'. Try 'ddjvu --help'.

DDJVU --- DjVuLibre-3.5.27 DjVu decompression utility Usage: ddjvu [options] [<djvufile> [<outputfile>]] Options: -verbose Print various informational messages. -format=FMT Select output format: pbm,pgm,ppm,pnm,rle,tiff. -scale=N Select display scale. -size=WxH Select size of rendered image. -subsample=N Select direct subsampling factor. -aspect=no Authorize aspect ratio changes -segment=WxH+X+Y Select which segment of the rendered image -mode=black Render a meaningful bitonal image. -mode=mask Only render the mask layer. -mode=foreground Only render the foreground layer. -mode=background Only render the background layer. -page=PAGESPEC Select page(s) to be decoded. -skip Skip corrupted pages instead of aborting. -eachpage Produce one file per page (using %d in outputfile). -quality=QUALITY Specify jpeg quality for lossy tiff output. If <outputfile> is a single dash or omitted, the decompressed image is sent to the standard output. If <djvufile> is a single dash or omitted, the djvu file is read from the standard input.