wget https://code-industry.net/public/master-pdf-editor-5.4.38-qt5.amd64.deb
sudo dpkg -i master-pdf-editor-5.4.38-qt5.amd64.deb

si dice que hay dependencias rotas:
sudo apt install libqt5printsupport5

sudo dpkg -i master-pdf-editor-5.4.38-qt5.amd64.deb