Significant characteristics of word processing files

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• "[T]he essential characteristics of a word processing document may include the textual content; formatting such as bolded text, font type and size; layout; bulleting; colour and embedded graphics." An Approach to the Preservation of Digital Records, National Archives of Australia, 2002
• Document Metadata: Document Technical Metadata for Digital Preservation, Florida Digital Archive and Harvard University Library, 2009: this document suggests technical metadata for textual records which "can be used to verify the result of document transformations, ensuring the properties of the original document are preserved and properly transformed to the new document format." The metadata in this table are adapted from that source:

Semantic unit	Description	Obligation	Characteristic	Note
PageCount	Total number of pages in the document	Mandatory	Structure
WordCount	Total number of words in the document	Optional	Structure	This element is included in this schema because it can be valuable for evaluating the completeness of the content after transformations. Caution must be used with this element, however, because tools and applications that can determine the number of words in a document do not always use the same algorithm for determining this value.
CharacterCount	Total number of characters in the document	Optional	Structure	See note for WordCount, above
ParagraphCount	Total number of paragraphs in the document	Optional	Structure	See note for WordCount, above
LineCount	Total number of lines in the document	Optional	Structure	See note for WordCount, above
TableCount	Total number of tables in the document	Optional	Structure	See note for WordCount, above
GraphicsCount	Total number of graphics in the document	Optional	Structure	See note for WordCount, above
Language	A language identifier specifying the natural language used in the document	Optional	Content
Fonts (FontName, isEmbedded)	A list of fonts used in the document; An indication of whether or not a font is embedded in a document	Mandatory	Content, Appearance	This element allows a repository to store the names of all fonts used in a document. Some repositories may choose to store only the non-embedded fonts. It is recommended that repositories record at least the non-embedded fonts to assist in identifying the documents with potential long-term preservation risks.
Features	Additional document features as follows: hasLayers, hasTransparency, hasOutline, hasForms, has Annotations	Optional	hasLayers: appearance hasTransparency: appearance hasOutline: behaviour, appearance hasForms: content hasAnnotations: content