How much do you think a photo of a just born baby is worth? If it is Brad and Angie’s baby its worth a lot. Like a $5 million. They’ve just signed the deal with US Weekly  and all the money will go directly to the UNICEF.
A source is quoted in Daily Mirror newspaper as saying:

"They’ve signed a £2.6million deal with a publication and the money will go to children’s charity UNICEF. Angelina’s very private but they figured they might as well use the opportunity of one child being born to help a lot of others."

angelina brad sold baby pictures to US Weekly