Available in pre-release 3.7
Usage: SumatraPDF info [options] file.pdf [pages]
  -p -    password for decryption
  -F      list fonts
  -I      list images
  -M      list dimensions
  -P      list patterns
  -S      list shadings
  -X      list form and postscript xobjects
  -Z      list ZUGFeRD info
  pages   comma separated list of page numbers and ranges