$ mkdir ~/pdfsizeopt
$ cd ~/pdfsizeopt
$ wget -O pdfsizeopt_libexec_linux.tar.gz https://github.com/pts/pdfsizeopt/releases/download/2017-01-24/pdfsizeopt_libexec_linux-v3.tar.gz
$ tar xzvf pdfsizeopt_libexec_linux.tar.gz
$ rm -f pdfsizeopt_libexec_linux.tar.gz
$ mkdir /opt/pdfsizeopt
$ mv ~/pdfsizeopt/pdfsizeopt_libexec_linux /opt/pdfsizeopt
& cd /opt/pdfsizeopt
& git clone https://gitee.com/mirrors_pts/pdfsizeopt.git
& cp -r /opt/pdfsizeopt/pdfsizeopt/* /opt/pdfsizeopt/
sudo apt update
sudo apt upgrade
sudo apt install make build-essential automake libltdl-dev git
sudo apt install imagemagick
