Material included in OHSU Digital Collections is subject to copyright. Copyright gives holders the exclusive rights to reproduce the work, distribute copies, prepare derivative works, publicly display the work, and perform the work.

Fair use is an exemption in copyright law that seeks to balance the interests of copyrighted works’ creators and the public’s ability to benefit from those works “by permitting the unlicensed use of copyright-protected works in certain circumstances” (United States Copyright Office, 2017c).

When making a fair use determination, the law requires four factors be considered. Each of these factors is given equal weight:

1.       The purpose and character of the use

2.        The nature of the copyrighted work

3.       The amount and sustainability of the portion used

4.       The effect upon the potential market for or value of the copyrighted work.


For more information on copyright, visit the Copyright at OHSU guide, at