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Digital sign of PDF with PAdES standard

I need to sign a pdf document with PADES standard.

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I'm programming with c#.

Somebody can suggest something ?

Best regards

Piercarlo


You can try iText. Although I still haven't tried myself, it supports signing files using the PAdES standard. Here's a sample, and here's another.

Mind you, the latest version is dual licensed, Affero-GPL or a Commercial license. But there's an older version under the LGPL.


Did you check PDFBlackbox package of our SecureBlackbox product? It supports PAdES and the sample for C# is included right in the installation package.


I know it is an old question, but here we go.

iTextSharp is what are you looking for. It is the ported version of iText to C#, and as Filipe Correia answered, it have support to PADES.

The PADES standard have 5 parts.

iText (Java) and iTextSharp (C#), both :

  • Have full support of PAdES Part 2
  • Support of PAdES Part 3 with an external signature
  • Have full support of PAdES Part 4
  • And do not support PAdES Part 5.

This document could help : http://lowagie.com/img/summit2012/pades.pdf

If someone want more details about PADES, could look here : http://www.etsi.org/deliver/etsi_ts/102700_102799/10277801/01.01.01_60/ts_10277801v010101p.pdf

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