/usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5 is in libqt5printsupport5 5.3.2+dfsg-4+deb8u2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5.3.2
/usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5.3.2