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@inproceedings{900152,
author = {Sojka, Petr and Hatlapatka, Radim},
address = {Znojmo, Czech Republic},
booktitle = {Proceedings of MEMICS 2010 conference},
keywords = {Authoring tools and systems; Categorization; Classification; Document presentation; Representations/Standards; Character recognition; Digital mathematical library; Digitisation workflow},
howpublished = {tištěná verze "print"},
language = {eng},
location = {Znojmo, Czech Republic},
isbn = {978-80-87342-10-7},
pages = {205-205},
publisher = {NOVPRESS s.r.o.},
title = {Document Engineering for a Digital Library: PDF recompression using JBIG2 and other optimization of PDF documents},
year = {2010}
}
TY - JOUR
ID - 900152
AU - Sojka, Petr - Hatlapatka, Radim
PY - 2010
TI - Document Engineering for a Digital Library: PDF recompression using JBIG2 and other optimization of PDF documents
PB - NOVPRESS s.r.o.
CY - Znojmo, Czech Republic
SN - 9788087342107
KW - Authoring tools and systems
KW - Categorization
KW - Classification
KW - Document presentation
KW - Representations/Standards
KW - Character recognition
KW - Digital mathematical library
KW - Digitisation workflow
N2 - Several innovative document transformations and tools developed in the process of building the Digital Mathematical Library DML-CZ http://dml.cz are described. The main result is our new PDF re-compression tool, developed using a enhanced jbig2enc library. Together with pdfsizeopt.py by Péter Szabó, we have managed to decrease PDF storage size and transmission needs by 62%: using both programs we reduced the size of the original already compressed PDFs to 38%. We briefly describe workflow and tools developed for creating the digital library. The batch digital signature stamper, the document similarity metrics which uses four different methods, a [meta]data validation process and math OCR tools represent some of the main [by]products. Such document engineering, together with Google Scholar indexing optimization, have led to the success of serving digitized and born-digital scientific math documents to the public in DML-CZ, and are being employed also in The European Digital Mathematics Library, EuDML.
ER -
SOJKA, Petr a Radim HATLAPATKA. Document Engineering for a Digital Library: PDF recompression using JBIG2 and other optimization of PDF documents. In \textit{Proceedings of MEMICS 2010 conference}. Znojmo, Czech Republic: NOVPRESS s.r.o., 2010, s.~205. ISBN~978-80-87342-10-7.
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