The PDR process uses specialized tools to gently massage dents out without damaging the paint

https://www.scribd.com/document/869427773/Why-Choosing-Paintless-Dent-Repair-is-an-Environmental-Win-for-Your-Vehicle-and-the-Planet-169360

The PDR process uses specialized tools to gently massage dents out without damaging the paint, which conserves valuable materials and reduces the need for extensive repairs.