PDFSeparate is a tool that can be used to pull out the individual pages of a PDF file, each page into a separate PDF output file.
poppler-utils
package which it ships under:$ sudo apt install poppler-utils
in.pdf
into separate pages of the form out-1.pdf
, out-2.pdf
and so on:$ pdfseparate in.pdf out-%d.pdf
Tried with: Poppler 0.62.0 and Ubuntu 18.04