If you are affiliated with the University of Illinois or with another HathiTrust partner institution you can download full PDFs of all works that are in the Public Domain or have Creative Commons licenses.
Exceptions to Full-Download Restrictions:
If you are not affiliated with the University of Illinois, librarians cannot download and send HathiTrust documents to you. Unaffiliated patrons can search and access fully viewable materials in HathiTrust and download materials where there are no third-party restrictions. You can also create a HathiTrust “Friend Account,” which lets you organize your collection. However, it does not give you the same access to documents that University of Illinois-affiliated patrons have.
The following are in the public domain, giving full access:
Note: Users with non-U.S. IP addresses cannot access volumes published outside the U.S. from 1876-1922.
HathiTrust can give access to materials with the permission of the rights holder. Users are free to contact publishers or authors of materials to request that the materials be opened in HathiTrust. If a volume was published in the United States from 1923 to 1963 and is Limited (search-only), it is possible that it could be in the public domain (see HathiTrust's Copyright page).