Here you can download OpenXAdES project deliverables.
DigiDoc document format, version 1.3 (12.05.2004). In English, in Estonian
Document format schema in XSD: version 1.3, version 1.2, version 1.1
C library, version 2.6.0.17, updated 2010.04.14 - includes Windows and Linux builds with documentation
DigiDocCOM library version 2.2.5.2 - Including DigiDocCOM.dll, all necessary libraries and documentation in Estonian.
Java library, version 2.3.19, updated 2009.11.13 - JDigiDoc,
Documentation:
in English
JDigiDoc full package, updated 2010.04.14 - including source code, necessary libraries and documentation.