Notes about the DDOC file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The DDOC file type is primarily associated with 'DigiDoc' by OpenXAdES Project. DigiDoc is a universal system for giving, processing and verifying digital signatures created by AS Sertifitseerimiskeskus. It can be connected to any existing or new software, but its components are also a stand-alone client program and web portal. The DigiDoc client is available to anybody to download for free. Anyone can use it to verify digital signatures or, if you have an Estonian ID card and smart card reader, also to give digital signatures.