Gentoo
PDFedit GUI is based on the Qt 3 toolkit and has not been ported to QT 4. As of 2016, the project does not appear to be active, so it probably won't be ported at all.
Gentoo no longer supports QT 3 applications: https://bugs.gentoo.org/show_bug.cgi?id=158188 app-text/pdfedit
http://gpo.zugaina.org/app-text/pdfedit/
External resources