Requirements for Windows APP

  Download Windows viewer for .SIG file   How to use


The following are the minimum system requirements to run the e-sign services.

  1. Operating System: Microsoft Windows 7 or higher

  2. Software Requirements:

    VC++ Redistributable Package for Visual Studio 2013
    The package can be downloaded from

    JAVA Runtime Environment 1.7 or better
    The package can be downloaded from

  3. Hardware Requirements:
    • 512 MB of RAM
    • 50 MB of available disk space



Windows Viewer for .SIG File

How to Install?

  • Download the Zip File to your system
  • Extract the Zip File using Winzip or Winrar
  • Right-click the zipped folder, and then click Extract All.
  • Right click on 'setup.bat' file and run with the Administrator Privilege

How to Uninstall?

  • Go to C:/Program Files/Dsig folder
  • Run 'UnInstall.bat' with Administrator Privilege


Download Windows APP for embedding signature in PDF file
Download Windows APP for e-Signing
Download Windows viewer for .SIG file
Subscribe for e-Hastakshar Services
Download C-DAC CA CPS
Download CRL


ASP Onboarding:

Integration Steps


Related links:

What is a Digital Signature?
e-Sign Service
Benefits of e-Sign Service
Contact Us