Reversible data hiding in PDF document exploiting prefix zeros in glyph coordinates

Neelesh Nursiah, Koksheik Wong, Minoru Kuribayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the contemporary world of information technology, PDF (Portable Document Format) has become the de facto document standard which allows users to exchange and view electronic documents across various platforms. PDF is the most widely exchanged document format since Internet gained popularity. Although PDF has a good authenticity system by making use of digital signatures, the file format is still susceptible to copyright infringement as there are many libraries available on the Internet to bypass the digital signature of a PDF. Therefore, claiming ownership for PDF has become a paramount issue that needs to be addressed. This paper proposes the idea of hiding data in the glyph positioning coordinate value. To suppress bit stream size increment, the reverse zero-run length coding technique is adopted. Experiments are conducted to verify the basic performance of the proposed data hiding method. In the best case scenario, 0.62 bits of data can be embedded into each Byte of the PDF file. The injected leading zeros can be removed to restore the original PDF file.

Original languageEnglish
Title of host publication2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1298-1302
Number of pages5
ISBN (Electronic)9781728132488
DOIs
Publication statusPublished - Nov 2019
Event2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2019 - Lanzhou, China
Duration: Nov 18 2019Nov 21 2019

Publication series

Name2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2019

Conference

Conference2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2019
CountryChina
CityLanzhou
Period11/18/1911/21/19

Keywords

  • Copyright infringement
  • Data hiding
  • Glyph positioning coordinate value
  • PDF
  • Reverse zero-run length

ASJC Scopus subject areas

  • Information Systems

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    Nursiah, N., Wong, K., & Kuribayashi, M. (2019). Reversible data hiding in PDF document exploiting prefix zeros in glyph coordinates. In 2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2019 (pp. 1298-1302). [9023310] (2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APSIPAASC47483.2019.9023310