La PDL est une licence parfaitement adaptée à la documentation de logiciels :
5.2. Effect of New Versions. Once Documentation has been published under a particular version of the License, You may always continue to use it under the terms of that version. You may also choose to use such Documentation under the terms of any subsequent version of the License published by __________________[Insert name of the foundation, company, Initial Writer, or whoever may modify this License]. No one other than _________________ [Insert name of the foundation, company, Initial Writer, or whoever may modify this License] has the right to modify the terms of this License. Filling in the name of the Initial Writer, Original Documentation or Contributor in the notice described in the Appendix shall not be deemed to be Modifications of this License.
3.1. Application of License The Modifications which You create or to which You contribute are governed by the terms of this License, including without limitation Section 2.2 ("Contributor Grant"). The Documentation may be distributed only under the terms of this License or a future version of this License released in accordance with Section 5.0 ("Versions of the License"), and You must include a copy of this License with every copy of the Documentation You distribute. You may not offer or impose any terms that alter or restrict the applicable version of this License or the recipients' rights hereunder. However, You may include an additional document offering the additional rights described in Section 3.5 ("Required Notices").