pdf creator Published by the American Physical Society 2 pdf encrypted no 2 pdf files total 2 pdf optimized no 2 pdf pages avg 25 pdf pages max 25 pdf pages min 25 pdf pages total 50 pdf size avg 4375057 pdf size max 4375057 pdf size min 4375057 pdf size total 8750114 pdf type SHA-256 2 pdf version 1.4 2