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About fields and tags |
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About fields and tags |
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About fields and tags
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About fields and tags |
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About fields and tags |
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Data fields are commonly defined by their position on a page, see To define a field. Fields can also be defined as being located at some offset relative to a 'search tag' that is matched against items in a specified area of the page: see To set up tags. A search tag can be a text string, a graphic or part of a graphic, or a font characteristic such as a particular style, point size, typeface, weight etc., see Setting search tag options.
Fields can also be moved to be 'children' of different tags. In the Field Definitions window the hierarchy of fields and their related tags can be easily viewed as a 'tree', see Tree view. Note that a field will only be output on condition that all its parent tags are recognized.
A field may be set up to load a new a field definitions file for the document dynamically. This allows each document, or even each page in a document, to invoke a different field definitions file. A tag can be linked to an overlay by specifying a macro number and whether that overlay is to be turned on or off when it recognizes the selected tag. See Setting advanced options in field definitions.
Used in conjunction with Composite fields, complex search criteria can be defined, see Examples|Search tags.
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