Adobe FrameMaker is a document processor designed for writing and editing large or complex documents, including structured documents. It was originally developed by Frame Technology Corporation, which was bought by Adobe. FrameMaker became an Adobe product in October 1995 when Adobe purchased Frame Technology Corp. Adobe added SGML support, which eventually morphed into today's XML support. In April 2004, Adobe stopped supporting FrameMaker for the Macintosh. This reinvigorated rumors surfacing in 2001 that product development and support for FrameMaker were being wound down. Adobe denied these rumors in 2001, later releasing FrameMaker 8 at the end of July 2007, FrameMaker 9 in 2009, FrameMaker 10 in 2011, FrameMaker 11 in 2012, FrameMaker 12 in 2014, FrameMaker (2015 release - confusingly, internal version 13.0) in June 2015, FrameMaker 2017 (internal version 14.0) in January 2017, FrameMaker 2019 (internal version 15.0) in August 2018, FrameMaker 2020 (internal version 16.0) in 2020, and FrameMaker 2022 (internal version 17.0) in 2022. FrameMaker has two ways of approaching documents: structured and unstructured. Structured FrameMaker is used to achieve consistency in documentation within industries such as aerospace, where several models of the same complex product exist, or pharmaceuticals, where translation and standardization are important requirements in communications about products. Structured FrameMaker uses SGML and XML concepts. The author works with an EDD (Element Definition Document), which is a FrameMaker-specific DTD (Document Type Definition). The EDD defines the structure of a document where meaningful units are designated as elements nested in each other depending on their relationships, and where the formatting of these elements is based on their contexts. Attributes or Metadata can be added to these elements and used for single source publishing or for filtering elements during the output processes (such as publishing for print or for Web-based display).