door frame shrinking

[Mitchell Litam]

I live in a pre WW2 house and the tenant has been living there for five years.

She said the door wont shut anymore like the wood expanded. When closing the door it gets stuck and is so tight it peels the paint above. Upon further inspection I found a bent metal object in the crease. I think she tried to shut it with the metal wedged in the opening and now it wont shut properly.

How would I fix this? Is there a way to adjust the hinges to make the door lower?