FamilySearch does not and cannot restrict the use of public domain images obtained from them. They explicitly acknowledged this in a previous G2G post when asked about posting a census image to Wikitree: "The U.S. Census is not a copyrighted material. As such, you can do and copy, print or whatever you wish with it. It should matter not, where your copy came from." The specific example was the U.S. census, but it applies to all public domain material.