pdf2zh -i 报错： ImportError: libGL.so.1: cannot open shared object file: No such file or directory

apt-get install -y libgl1-mesa-dev.
Next you will get libgthread-2.0.so.0: cannot open shared object file: No such file or directory,
try apt-get install -y libglib2.0-0

“E: Unable to locate package” Error [Solved]

apt-get update 解决。