Do doorway pull-up bars damage your door frame?

Specialist communities are split. Reviewers in r/bodyweightfitness repeatedly note that friction- and wedge-style bars can dig into trim or, on older/thinner frames, crack plaster—'some permanent damage to the door frame but nothing dangerous, just aesthetic' is a common refrain. Leverage-style bars that hook over the frame and brace against the wall above the door tend to spread load better. If you rent, look for padded contact points and avoid pressure-fit-only designs on fragile frames.