System Requirements

IMM eSign 2020 for Cloud Environments

Revised on 12/15/2021

Workstation Requirements



  • Intel Dual Core 3.0GHz, 4GB RAM
  • 20GB+ free disk space
  • Display resolution 1280 x 960 minimum



  • IMM eSign Cloud Server


Signing Devices1, 2, 3

  • Topaz LCD Signature Pads
  • Touch-Capable Systems: Windows Touch-Enabled Devices (Windows 10 Pro Tablet), iPad4 (iOS 13 or newer), Wacom5, Topaz GemView5, Verifast6


Attachment Scanning

  • ScanShell 3100D
  • Canon P-215/P-215 II
  • TWAIN scanner drivers are supported. Financial institutions are responsible for testing.


Supported Cameras7, 8

  • Microsoft LifeCam
  • Windows 10 Built-In Cameras

Supported OS

  • Windows 10 (Professional or Enterprise)

Supported Web Browsers

  • Google Chrome9
  • Microsoft Edge9
  • Microsoft Internet Explorer 11
  • Mozilla Firefox9





  • eSignature for IMM eSign Client licenses
  • Document modifications for signature fields are required
  1. Refer to the In-Person Signature Device Order Form to purchase the latest supported Topaz and Wacom hardware:
  2. For Internet Explorer, only SigPlus is required. For other web browsers, install SigPlus and the Topaz SigPlusExtLite SDK. Then, install browser extensions. Refer to the Topaz SigPlusExtLite User Installation Guide: For silent installations, refer to
  3. Refer to the Adobe Sign system requirements for details about remote signer requirements:
  4. iPads must be configured and fully functional on the institution’s network before use. IMM eSign is supported with the mobile browser experience using iPad only.
  5. Recommended for the best consumer experience. Not supported on Thin Client Configurations.
  6. Fiserv Verifast module and Verifast tablet are required.
  7. To use a camera with Google Chrome, Microsoft Edge, or Mozilla Firefox web browsers, HTTPS is required.
  8. Other cameras may work. Financial institutions are responsible for testing.
  9. Consult your IMM representative to determine if there are any additional requirements for your integration.

Supported Thin Client Configurations

Citrix Virtual Apps and Desktops (XenApp and XenDesktop)


  • Citrix Virtual Apps and Desktops 7 2003



  • Via RDP: Thick client or WYSE Terminal running Windows Embedded OS Terminals
  • Via Citrix Receiver: Thick client or WYSE Terminal running Windows Embedded OS Terminals (Desktop sharing only)
  • Citrix Receiver on either thick client or XenDesktop device
  • Signatures supported with Citrix or Windows CDS (Citrix Device Service) only

VMware Horizon (VDI)

  • Server: VMware Horizon 7.12
  • Client: VMware Horizon on either thick client or a VMware Horizon device

Remote Desktop Services

  • Server: Windows Server 2012 R2, 2016, 2019 (64-Bit) host configured for Terminal Services
  • Client: Thick client via RDP or any WYSE device running Windows Embedded OS Terminals

Remote Sign Downloader/Imaging Index Service Requirements

If using the Remote Sign Downloader or Imaging Index Service, a dedicated workstation or server is required with SQL Server installed.

Dedicated Environment

  • A dedicated Windows 10 workstation or a Windows server (2012 R2, 2016, or 2019)

SQL Server

  • SQL Server Standard or Express 2014 SP2, 2016 SP2, 2017, or 2019


  • 2 CPU, 8GB RAM
System Requirements

IMM eSign Cloud