DigitalCertificateSigner 2.3.3 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
The latest version of the software can be installed on PCs running Windows XP/XP Professional/Vista/7/8/10/11, 32-bit. The most popular versions of the software are 2.3 and 1.0. The actual developer of the software is Digisigner. The program lies within Development Tools, more precisely Help.
From the developer:
This tutorial is a part of our DigiSigner tutorial and explains in detail how to generate digital certificates using keytool, key and certificate management tool. We also show how to do the same task using graphical interface of our DigiSigner tool, tiny PDF viewer and signer. DigiSigner is available in Free and Pro versions for Windows, Mac and Linux.
You may want to check out more software, such as HEAT, VHDL Simili or SG2 Client, which might be related to DigitalCertificateSigner.