Opening DDOC Files

The DDOC file type is primarily associated with DigiDoc Client.

DDOC	File extension: DDOC
	File type:	XML-based digital document

What is a DDOC file?

DDOC files mostly belong to DigiDoc Client. DDOC files are digitally signed documents used mainly in Estonia. They are coded in XML, which supports detailed data structuring and robust digital signature embedding.

XML-based structure: This ensures that every element of the document is clearly defined.

Digital signature: The signature verifies that the document is authentic and has not been altered.

Core use: They are integral in secure digital communications, especially for public and legal transactions.

FilExt.com note: The DigiDoc Client is the primary software to open and validate these files. For more detailed technical insights, check the official page at ID.ee.

How do you open DDOC files?

You need a suitable software like DigiDoc Client to open a DDOC file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your DDOC file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a DDOC file directly in the browser:. Just drag the file onto this browser window and drop it.

Online DDOC Text Viewer

Choose your .ddoc file to view

or drag and drop it here

Online File Viewer

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How to convert a DDOC file to JPG, PDF, HTML, DOC, ...

If you want to convert or edit a DDOC file, you can use our free Online DDOC File Converter (powered by Convert.Guru):

To do so, click the "Choose your .ddoc file to view" button above.
Your DDOC file will then be displayed in the browser.
Now click on "Save as..." at the top of the page.
Then click the file format (e.g. PDF, JPG, DOCX, TXT, ...) you want.
Download the converted file.

Programs that open and convert DDOC files:

DigiDoc Client
See the previous paragraphs to learn more about the main application. DDOC files are often referred to as DigiDoc Client data files because this type of file is primarily created or used by this software.
DigiDoc (Digital Signature) 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.

Technical Data for DDOC File Extension

File classification:

Data

Related files:

bdoc, bsig, p7m, p7s, cdoc, asice, ddocp, adoc, edoc, doc, dwg, jpg, bisign, xml

Mime type:

application/x-ddoc, application/ddoc

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: DDOC
EXEFile: %ProgramFiles%\DigiDoc\digidoc.exe

a ddoc XML-based digital document is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with DDOC files

Associate the DDOC file extension with the correct application.
Update your software that should actually open xml-based digital documents. Because only the current version supports the latest DDOC file format. Search, therefore, e.g. on the manufacturer website after an available DigiDoc Client update.
To make sure that your DDOC file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .DDOC file online - secure, fast, and no downloads needed.