Paintless Dent Repair (PDR) removes dents by gently reshaping metal from behind the panel

https://rafaelkdhp797.quantlynix.com/posts/auto-body-dent-repair-vs-paintless-dent-removal-what-s-the-difference

Paintless Dent Repair (PDR) removes dents by gently reshaping metal from behind the panel, keeping the factory paint intact and avoiding fillers, sanding, and repainting.