The paper shows why validity and semantics matters for a PDF/UA evaluation concept and how an automated checking tool can address this. In order to translate machine-testable requirements into checking criteria a special query language is developed called PQL (PDF Query Language). PQL will be implemented in PDF Accessibility Checker PAC 2, the first and free PDF/UA compliance checker crowd-funded by the foundation "Access for all". © 2012 Springer-Verlag.
CITATION STYLE
Erle, M., & Hofer, S. (2012). Validity and semantics - Two essential parts of a backbone for an automated PDF/UA compliance check for PDF documents. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7382 LNCS, pp. 617–620). https://doi.org/10.1007/978-3-642-31522-0_93
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