SigPlusExtLite SDK & Extension


SigPlusExtLite™ offers a means to capture handwritten signatures for web applications running in the Google Chrome, Mozilla Firefox, Microsoft Edge, and Opera browsers. SigPlusExtLite supports usage in remote environments, such as Citrix and Terminal Server.





If you are a developer, first click the download link on the right and follow the installation instructions. Then, view the SigPlusExtLite Software Integration Guide for instructions on Chrome, Firefox, Edge, and Opera integration. For more information, view the Topaz Web examples, demos, and source code. Note: The SDK can also be used to export a base64-encoded PNG image of the captured signature.





If you are an end user, click the download link below and follow the installation instructions for using SigPlusExtLite in Chrome, Firefox, Edge, and Opera.


Click the link below to download the SigPlusExtLite.exe and installation guide. Follow the steps in this guide explicitly for proper installation:

Version Number


SigPlusExtLite Client Installer:

Version 1.0 R1013

Last Update: January 3, 2018



Google Chrome Extension:


Last Update: January 3, 2018


Mozilla Firefox Extension:


Last Update: January 3, 2018


Microsoft Edge Extension:


Last Update: June 29, 2018


Opera Extension:


Last Update: January 3, 2018


OS Compatibility


Windows 7

Windows 8

Windows 10