The command-line tools are provided by sumatrapdf-tool, which is installed next to SumatraPDF.exe. They only work after SumatraPDF has been installed.
Available in pre-release 3.7
Usage: sumatrapdf-tool info [options] file.pdf [pages]
PDF file can contain embedded fonts, images, patterns etc. Each object has an object number.
sumatrapdf-tool info foo.pdf shows list of objects in the PDF file.
By default it shows all supported types of objects.
Objects are reported per page: the page’s object number followed by the matching objects used on it. If you don’t supply a pages list, all pages are inspected.
You can narrow down what it prints with options:
  • -F list fonts
  • -I list images

All options #

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