DigiDoc4 is a part of Estonian national ID-software developed by governmental institution - Estonian Information System Authority.
DigiDoc4 is a program that can be used to sign digitally with ID-card, mobile-ID and Smart-ID, check the validity of digital signatures, open and save documents inside the signature container, encrypt and decrypt files and review personal information stored on the ID-card. Digitally signed containers are files with .ddoc, .bdoc or .asice extensions, encrypted/decrypted files are with .cdoc extension.
Publisher’s description
What is DigiDoc4 Client?
DigiDoc4 Client is an open-source office suite program for Windows from RIA. It is written in C++. Besides Windows, it is available for Linux.
Installation and requirements
Official installers exist for 64-bit as MSI. Installation asks for administrator rights. The installer supports unattended (silent) installation. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 4.11.1, released on September 2, 2026. 12 versions are listed since July 15, 2021, each with links to its own installer files. That is about 2.3 releases a year.
Popularity and file types
The source code on GitHub (open-eid/DigiDoc4-Client) has 144 stars. On Windows it registers 10 file types, including .adoc, .asice, .asics, .bdoc and .edoc. Similar programs include TeXstudio, Zettlr and JabRef.
Project description on GitHub: “DigiDoc4 is an application for digitally signing and encrypting documents; the software includes functionality to manage Estonian ID-card - change pin codes etc.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Also runs on Linux
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: DigiDoc4 Client is an open-source office suite tool for 64-bit PCs. Administrators can deploy it unattended.
Is DigiDoc4 Client safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
C009D361466EEADA26F1E43F3F3361524CCE0F16929F1501AB3B04893D4D361F· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 12 versions ›12 versions over 5 years · about 2.3 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 4.11.1Latest | September 2, 2026 | — | 64-bit MSI |
| 4.11.0 | August 19, 2026 | — | 64-bit MSI |
| 4.10.0 | May 13, 2026 | — | 64-bit MSI |
| 4.9.0 | November 10, 2025 | — | 64-bit MSI |
| 4.8.2 | August 22, 2025 | — | 64-bit MSI |
| 4.8.0 | June 20, 2025 | — | 64-bit MSI |
| 4.7.0.5322 | January 2, 2025 | — | 64-bit MSI |
| 4.6.0.5305 | October 8, 2024 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id RIA.DigiDoc4 -emsiexec /i Digidoc4-4.11.1.5434.x64.msi /qn /norestartmsiexec /x {C136E872-9131-480E-86C7-957DE6EDAC4A} /qn /norestartRelated guide: How to use winget: install and update apps
Also for other systems
flatpak install flathub ee.ria.qdigidoc4Information
- Publisher
- RIA
- Category
- Office suites
- Licence
- LGPL-2.1
- Price
- Free
- Source code
- github.com/open-eid/DigiDoc4-Client
- Written in
- C++
- Content rating
- All ages
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Other platforms
- Linux
- Version
- 4.11.1
- Released
- September 2, 2026
- Added to the catalogue
- July 15, 2021
- Versions listed
- 12
- Updates / year
- 2.3
- GitHub stars
- 144
- GitHub forks
- 51
- Website
- github.com
- winget ID
- RIA.DigiDoc4
- MSI product code
- {C136E872-9131-480E-86C7-957DE6EDAC4A}
File types it opens (10)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is DigiDoc4 Client free?
Yes. DigiDoc4 Client is open-source software under the LGPL-2.1 licence.
Is DigiDoc4 Client safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install DigiDoc4 Client with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can DigiDoc4 Client be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does DigiDoc4 Client run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of DigiDoc4 Client?
The versions page lists all 12 versions with links to their official installer files, back to July 15, 2021.
What are alternatives to DigiDoc4 Client?
TeXstudio, Zettlr, JabRef, ONLYOFFICE Desktop Editors and PDF Arranger. The alternatives page compares them.
