Need to split a multipage PDF into individual files?
Ghostscript and bash to the rescue. I found out ahead of time that there were 136 pages in my source.pdf.
for i in {1..136}; do
echo $i;
gs -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -dFirstPage=$i -dLastPage=$i -sOutputFile=$i.pdf source.pdf;
done