$ pdfcli --help
Usage: pdfcli [OPTIONS] COMMAND [ARGS]...

Options:
  --help  Show this message and exit.

Commands:
  decrypt    decrypt pdf
  encrypt    encrypt pdf
  extract    extract one or multiple pages and build a new document.
  info       dump pdf informations.
  join       join multiple pdf together in a single file
  rotate     rotate selected pages Rotate selected pages and outputs in new...
  split      split pdf into single page file
  watermark  use first page of pdf and add it as watermark to other
             document...

pdfcli split source.pdf -p 1,5-9

pdfcli extract source.pdf  -p 1,5-9 -o new.pdf