Under the terms of Wednesday’s settlement, American Media has the right to up to $75,000 of any future profits from her story about the alleged affair, which Mr. Trump denies. According to her lawyer, Peter K. Stris, Ms. McDougal can keep the $150,000 payment and the publisher will retain the rights to photographs of her that it already has.

“It’s a total win,” Mr. Stris said in an interview. “We got everything we were fighting for — she got out of the contract, gets the life rights back and owes A.M.I. nothing more.”

In a separate interview, Ms. McDougal expressed elation about the end of her “wild ride,” and said she currently had no plans to sell the rights to her story to a new buyer. “It’s one step at a time for me,” she said. “Today, I’m doing my victory dance.”