pdf creator 2018 American Physical Society 1 pdf creator TeX 1 pdf encrypted no 2 pdf files total 2 pdf optimized no 1 pdf optimized yes 1 pdf pages avg 6 pdf pages max 7 pdf pages min 6 pdf pages total 13 pdf size avg 1018080 pdf size max 1442720 pdf size min 593439 pdf size total 2036159 pdf version 1.4 1 pdf version 1.5 1