UniTwain 3.1.1.12 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. This PC software is developed for Windows XP/7/8/10/11 environment, 32-bit version.
The following versions: 2.5, 2.4 and 2.0 are the most frequently downloaded ones by the program users. The program is included in Office Tools. This tool was originally developed by TerminalWorks. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The common filename for the program's installer is UniTwain.exe.
From the developer:
The virtual UniTwain scanner enables you to import documents into applications from the scanning interface. The software acts as a scanner and allows you to acquire an image directly from your document. Install a free 15-day trial version with no limitations.
You may want to check out more software, such as STAMPIT, RagTime or Hieroglyph, which might be similar to UniTwain.