You can select the type of license or public domain works.
You can also limit your search by image size, colour, type, layout, people, and date. Just click the "filter" on the far right of the window and then select public domain, license type, or the terms of use that best suits your needs.
Creative Commons Search available on the Creative Commons website includes an option to search for Creative Commons content including images across numerous sources, such as Flickr, Google, and Wikimedia Commons, among many others.Listed below are a variety of resources for finding Creative Commons (CC) and public domain images. Images in the Public Domain and Creative Commons