==== Convert multiple pdf to one ====
<sxh bash>
pdftk *.pdf cat output outputfile.pdf
</sxh>

==== Extract pages ====
<sxh bash>
pdftk myfile.pdf cat 1-10 output myfile-1-10.pdf
</sxh>
see also : https://superuser.com/questions/345086/split-pdf-document-from-command-line-in-linux/1034450#1034450
{{tag>cli pdf}}