sudo apt install python3-pip sudo -H pip3 install --upgrade pip sudo -H python3.6 -m pip install -U pymupdf
参考:
https://github.com/pymupdf/PyMuPDF/wiki/Ubuntu-Installation-Experience
http://ubuntuhandbook。org/index.php/2018/05/install-mupdf-1-3-0-ubuntu-18-04/