pdfのfontを確認

pdffonts *.pdf

Usage: pdffonts [options]
  -f        : first page to examine
  -l        : last page to examine
  -opw   : owner password (for encrypted files)
  -upw   : user password (for encrypted files)
  -v             : print copyright and version info
  -h             : print usage information
  -help          : print usage information
  --help         : print usage information
  -?             : print usage information