Use this page to download the latest version of Authentic, which is Version 2025 Release 2.
Select your software version, and click the Download button below to download the self- contained Installer for Altova Authentic 2025.
Spell Checker Dictionaries
Authentic ships with comprehensive spell-checking capabilities through built-in dictionaries. You can also download additional dictionaries.
To assist customers working with industry-standard DTDs, XSDs, and versions thereof, Authentic includes a convenient XML Schema Manager that provides a centralized way to install and manage schemas for use across all Altova XML-enabled applications.
The XML Schema Manager will launch when you open a document for which the schema is not installed, and you can also access the XML Schema Manager from the Tools menu.
Alternatively, if you are working within a secure network and need to manually download schemas, you may access them here.
Free Trial Evaluation Information
To start your free, 30-day trial of Authentic Enterprise Edition simply download and install the software. When you start desktop version of the software, you will be prompted to request a license, which you will receive via email.