How do you easily split a large PDF into two (or more) separate PDFs?
Say we have foo-bar.pdf, section foo is from page 1-12 and section bar is from page 13 till the end. I want foo-bar.pdf split into foo.pdf and bar.pdf.
You can use pdftk, it's a handy tool for manipulating PDF documents.
sudo apt-get --yes install pdftk
pdftk foo-bar.pdf cat 1-12 output foo.pdf
pdftk foo-bar.pdf cat 13-end output bar.pdf
You can use this method to split a PDF in N ways, or to remove pages.
For example, to remove page 13:
pdftk in.pdf cat 1-12 14-end output out.pdf
Or use it to rotate pages and many other things, see man pdftk.
Installation is also possible by downloading a binary (Windows, OS X, Linux) or using Homebrew.
This can be done with cpdf:
cpdf in.pdf 1-12 -o out.pdf
cpdf in.pdf 13-end -o out.pdf
Or, to split into 12-page-sized chunks:
cpdf in.pdf -split -chunk 12 -o out%%%.pdf
Disclosure: I am the author of cpdf.
As my distribution doesn't package cpdf neither pdftk, I had to search for another solution and found the easiest one - in order to split PDFs, one can simply "print" page ranges from them, selecting PDF as an output (instead of a printer).
This is for sure available in GNOME by default, but I am pretty sure that it is available in other DEs too.
来源：https://stackoverflow.com/questions/17776582/split-a-pdf-in-two