Pitt and Jolie sold rights to the images of Shiloh Nouvel Jolie-Pitt, born May 27 in Namibia, through Getty Images photo agency. The couple said all proceeds would be donated to a charity, not yet named.
People magazine paid a reported $4 million for the right to release the pictures in North America, while Hello! obtained British rights.
The embargo on the images was broken when two gossip Web sites posted an apparent image of the front cover of Hello!
One of the two sites appeared to be Gawker.com.
Hello! denies leaking the photo, saying its cover was kept strictly under wraps. The magazine said it and People "have taken immediate legal action to prevent publication of its cover prior to it going on sale" Thursday in Britain.
Pitt and Jolie made their first public appearance since the birth of their daughter, thanking Namibia for the privacy and peace they enjoyed, and denying they were making wedding plans.
"There is nothing in the air. The focus is the kids, and we are obviously extremely committed to the children and as parents together," Jolie told a news conference for local journalists Wednesday at the Hansa hotel in the Namibian coastal town of Swakopmund. "So that kind of says it for us, and to have a ceremony on top of it is nothing."
Jolie, 30, gave birth to Shiloh Nouvel at a private clinic in Walvis Bay. Delivered by Caesarean section, the baby weighed 7 pounds and was said to be in good health.
Pitt and Jolie, who were first linked romantically after appearing together in the 2005 movie "Mr. & Mrs. Smith," retreated to the southwest African country for government-assisted privacy in the weeks leading up to the birth. They plan to leave in the coming days, without specifying a date.
"We are very proud that our daughter was born here, and we leave with fond memories and definitely hungry to return," Pitt, 42, said.
Jolie, relaxed and smiling in a long black dress, said the couple had sought a place where they could spend some special time with her children, 16-month-old Zahara, adopted from Ethiopia, and 4-year-old Maddox, adopted from Cambodia. Both children had their surnames legally changed to Jolie-Pitt after Pitt announced his intention to adopt them as well.
Pitt and Jennifer Aniston divorced last year.
Jolie, who won an Oscar for her supporting role in 1999's "Girl, Interrupted," is divorced from Billy Bob Thornton and Jonny Lee Miller.