At any time in the future, in spite of technological and other advances, it would be possible to validate the document to confirm that the signature was valid at the time it was signed – a concept known as Long-Term Validation (LTV).ĭocuments signed electronically in PAdES format can be used or stored for many years or even decades so that at any time in the future, despite any possible technological improvements, it should be possible to validate the document in order to confirm that the signature was valid at the time when it was signed, concept known as “Long-Term Validation” (LTV).
ELECTRONIC SIGN PDF PDF
PAdES does not support parallel signing and it requires a PDF software to sign and verify an e-signature.Īn important advantage is that electronically signed documents remain valid for long periods of time, even if the underlying cryptographic algorithms are broken. It is not thus suitable in case the data has to be read by a computer as well. The PAdES formatīy default, the e-signature is always embedded within the signed PDF document, which is only human-readable. While PDF and ISO 32000-1 present a framework to electronically sign documents, PAdES PDF signature defines accurate profiles for the use of the advanced electronic signature under the Directive 1999/93/EC of the EU. Its name stands for PDF advanced electronic signature.
PAdES PDF is a set of restrictions and extensions to PDF and ISO 32000-1 making it suitable for advanced electronic signature.
Portada | General | Advanced electronic signature PAdES PDF
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