pdf2xml - extract text from PDF files and wraps it in XML
pdf2xml [OPTIONS] pdf-file > output.xml
For more information, see the man-pages of the command-line tool
Extract text from PDF using external tools and some post-processing heuristics. Here is an example with and without post-processing:
raw: <p>PRESENTATION ET R A P P E L DES PRINCIPAUX RESULTATS 9</p> clean: <p>PRESENTATION ET RAPPEL DES PRINCIPAUX RESULTATS 9</p> raw: <p>2. Les c r i t è r e s de choix : la c o n s o m m a t i o n de c o m b u s - t ib les et l e u r moda l i t é d ' u t i l i s a t i on d 'une p a r t , la concen t r a t ion d ' a u t r e p a r t 16</p> clean: <p>2. Les critères de choix : la consommation de combustibles et leur modalité d'utilisation d'une part, la concentration d'autre part 16</p>
This is quite slow and loading Apache Tika for each conversion is not very efficient. Using the server mode of Apache Tika would be a solution.
Character merging heuristics are very simple. Using the longest string forming a valid word from the vocabulary may lead to many incorrect words in context for some languages. Also, the implementation of the merging procedure is probably not the most efficient one.
De-hyphenation heuristics could also be improved. The problem is to keep it as language-independent as possible.
Apache Tika: http://tika.apache.org
The Poppler Developers - http://poppler.freedesktop.org
Copyright (C) 2013 by Joerg Tiedemann
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available.