The unnamed woman's attorney, Kelly C. Dohm, said her client "wishes to express her extreme outrage at the invasion of their privacy that has occurred" through the publication of the photos without their consent.
Peterson faces up to two years in prison after being indicted last week in Texas on charges of reckless or negligent injury to a child after authorities said he hit his four-year-old son with a switch.
"My client is hurt and outraged that the press would publish throughout the world pictures of their minor son and publish statements allegedly made as part of the private and confidential criminal investigative file," Dohm said in her statement.
The Vikings put Peterson on the NFL's exempt/commissioner's permission list until his case is resolved. The list bans Peterson from all team activities. Peterson is set to be arraigned on Oct. 8.
- Scooby Axson