/usr/share/doc/libgdkcutter-pixbuf-dev/changelog.Debian.gz is in libgdkcutter-pixbuf-dev 1.1.7-1.2ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgdkcutter-pixbuf-dev/../libcutter0/changelog.Debian.gz