Improving XED for extracting content from Arabic PDFs
DAS '10 Proceedings of the 9th IAPR International Workshop on Document Analysis Systems
Structure extraction from PDF-based book documents
Proceedings of the 11th annual international ACM/IEEE joint conference on Digital libraries
Newspaper article reconstruction using ant colony optimization and bipartite graph
Applied Soft Computing
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Physical and logical structure recovering from electronic documents is still an open issue. In this paper, we propose a flexible and efficient approach for recovering document structures from PDF files. After a brief introduction of the PDF format and its major features, we report about our evaluation of different existing tools and works for PDF content extraction and analysis. To overcome the weaknesses of these systems, we propose a new analysis strategy, based on an intermediate representation, called XCDF, which enables representing physical structures in a canonical way. This paper then describes the PDF reverse engineering workflow and focuses on the document logical restructuring. Finally, the paper concludes with potential future improvements.