Usage: webpagetest screenshot [options] <id>

get the fully loaded page screenshot in JPG format (PNG if in full resolution)

Options:
  -r, --run <number>  which run number on a multiple runs test [1]
  -c, --cached        get the Repeat View (cached view) instead of default
                      First View (primed cache)
  -t, --thumbnail     get the thumbnail of actual image
  -u, --uri           return the base64 string representation (inline) of
                      actual image
  -f, --full          get full resolution screenshot in PNG format if available
  -n, --render        get the page screenshot at the Start Render point (i.e.:
                      when something was first displayed on screen)
  -p, --complete      get the page screenshot at the Document Complete point
                      (i.e.: when window.onload was fired)
  -h, --help          display help for command