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KnowledgeTree^® is PHP-based, open source document management software that is easy to install and use across a broad range of organizations. The features included in the community edition — including workflow, version control and audit trails — help manage the document lifecycle, promote collaboration, reduce paper and ensure compliance. The extensible PHP design, as well as incorporation of open standards, such as CMIS, ensure that KnowledgeTree can be easily integrated with other systems. As a commercial open source company, KnowledgeTree is committed to affordability, accessibility and integration across operating systems and applications. We value the contributions and participation of the KnowledgeTree community to enhance our offering.
KnowledgeTree Community Edition is licensed under the GNU GPL version 3.

KnowledgeTree is available in several editions, including:

• KnowledgeTree Community Edition: A free download, with access to the source code under the GPLv3 open source license
• KnowledgeTree Commercial Edition (Premium, Plus and Basic): A full-featured and commercially supported edition of KnowledgeTree