Document analysis of PDF files: methods, results and implications

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.

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A 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.

Item Type: Article
Additional Information: Copyright transferred from John Wiley to Univ.of Nottingham in 1998.
Keywords: Document analysis, Document understanding, Blackboard methods, Geometric structure, Logical structure, PDF, PostScript
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Computer Science
Depositing User: Brailsford, Prof David
Date Deposited: 14 Nov 2005
Last Modified: 04 May 2020 20:33

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