Document analysis of PDF files: methods, results and implicationsTools Lovegrove, William S. and Brailsford, David F. (1995) Document analysis of PDF files: methods, results and implications. Electronic Publishing -- Origination, Dissemination and Design, 8 (3). pp. 207-220. Full text not available from this repository.AbstractA strategy for document analysis is presented which uses Portable Document Format (PDF the underlying file structure for Adobe Acrobat software) as its starting point. This strategy examines the appearance and geometric position of text and image blocks distributed over an entire document. A blackboard system is used to tag the blocks as a first stage in deducing the fundamental relationships existing between them. PDF is shown to be a useful intermediate stage in the bottom-up analysis of document structure. Its information on line spacing and font usage gives important clues in bridging the semantic gap between the scanned bitmap page and its fully analysed, block-structured form. Analysis of PDF can yield not only accurate page decomposition but also sufficient document information for the later stages of structural analysis and document understanding.
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