The proCertum SmartSign software is an app used to create and verify a secure electronic signature verified with a valid qualified certificate. The app allows management of electronic documents, their electronic signing and verification of electronic signatures and public key certificates issued by all certification centers in Poland. It also includes the SimplySign Desktop module, which emulates the connection of a physical cryptographic card and card reader to the user’s computer. With this solution, you will be able to use SimplySign in apps requiring the use of a physical cryptographic card at no additional cost.
Technical details
Publisher
Certum
Author
Asseco Data Systems S.A.
Version
9.4.5.95
Release date
2026-09-11
License
Proprietary
Installer type
msi
Architecture
x64
Package ID
Certum.SmartSignSimplySignDesktop
Install proCertum SmartSign SimplySign Desktop from the command line
proCertum SmartSign SimplySign Desktop version history
9.4.4.92
9.4.3.90
9.4.2.86
9.4.0.84
9.3.4.72
9.3.3.71
9.3.2.67
Frequently asked questions
Is proCertum SmartSign SimplySign Desktop free?
proCertum SmartSign SimplySign Desktop is proprietary software from Certum. Check the publisher's license terms for pricing and usage rights.
What is the latest version of proCertum SmartSign SimplySign Desktop?
The latest version is 9.4.5.95, released on Sep 11, 2026.
Is it safe to download proCertum SmartSign SimplySign Desktop?
The download button links to the official installer published on files.certum.eu, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 6309e8b46f1f4e786288e777aef515a2c30d885165b71a21191e9941badebd6b.
Which Windows versions does proCertum SmartSign SimplySign Desktop support?
proCertum SmartSign SimplySign Desktop runs on Windows and is available for 64-bit (x64) systems.
How do I install proCertum SmartSign SimplySign Desktop silently?
Run the offline installer with msiexec /i "SimplySignDesktop-9.4.5.95-64-bit-en.msi" /quiet /norestart, or install it with Windows Package Manager: winget install --id=Certum.SmartSignSimplySignDesktop -e --silent.
How do I uninstall proCertum SmartSign SimplySign Desktop?
Open Settings › Apps › Installed apps, find proCertum SmartSign SimplySign Desktop and select Uninstall. From the command line, run winget uninstall --id=Certum.SmartSignSimplySignDesktop -e.
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