/usr/share/doc/texlive-doc/pdftex/README is in texlive-base 2009-15.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/texlive-doc/pdftex/../../texlive-base/pdftex/README
/usr/share/doc/texlive-doc/pdftex/../../texlive-base/pdftex/README