Protecting Long Term Validity of PDF documents with PAdES-LTV

  • Nick Pope


This paper describes an extension to Portable Document Format (PDF) signatures to facilitate the long term validity of electronic documents. It presents the work of ETSI (European Telecommunications Standards Institute) published summer 2009, in ETSI TS 102 778, aiming towards an extension to the ISO 32 000-1 PDF standard.

The paper describes the problems with assuring the authenticity of a signed document over long periods (from about 1 year onwards) and outlines how these issues can be resolved using the PDF extensions for Long Term Validation (LTV).

The LTV extension is specified as part of a series of profiles for PDF Advanced Electronic Signatures (PAdES) recently published by ETSI [ETSIPAdES].


Validation Data Certification Authority Electronic Signature Portable Document Format European Telecommunication Standard Institute 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Vieweg+Teubner | GWV Fachverlage GmbH 2010

Authors and Affiliations

  • Nick Pope
    • 1
  1. 1.Thales Information Systems Security AylesburyUnited Kingdom

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