Copyfree is a play on the word copyleft as well as the word copyright, describing a practice that contrasts both of them of using copyright law to remove restrictions on distributed copies and modified versions of a work imposed by both copyleft licensing and copyright itself. Where copyleft licensing generally requires that all derivative works be distributed under the terms of the same license, copyfree licensing generally requires only that the original work and direct modifications of it continue to be distributed under the terms of the same license.^[9] The Copyfree Initiative maintains the Copyfree Standard Definition^[10], which establishes a specification to qualify a license for Copyfree Initiative certification of a copyfree license.
A symbol commonly associated with copyfree policy is a modification of the copyright symbol, replacing the C with a capital F to produce the copyfree logo.^[11]