Available in pre-release 3.7
Usage: SumatraPDF show [options] file.pdf ( trailer | xref | pages | grep | outline | js | form | <path> ) *
  -p -    password
  -o -    output file
  -e      leave stream contents in their original form
  -b      print only stream contents, as raw binary data
  -g      print only object, one line per object, suitable for grep
  -r      force repair before showing any objects
  -L      show object labels
  path: path to an object, starting with either an object number,
          'pages', 'trailer', or a property in the trailer;
          path elements separated by '.' or '/'. Path elements must be
          array index numbers, dictionary property names, or '*'.