# DWFX Batch Digital Signature [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) By using an independent batch signature tool, you can sign DWFX, DWG, DWT, and other files in bulk with digital signatures efficiently. ## Batch Digital Signature 1. Find the application digitalsign.exe in the programme installation path.  2. Double click to enter the main screen of the application.  3. Add drawings to be signed individually/in bulk and select the digital certificate to be used for signing. - Selecting files by file format  - Signature options available  - Adding time stamps and annotations  4. Click on the signature and get the result.  5. Change in status of drawing signature.  6. Right-click menu function  - Feature: Call Windows File Properties Panel  - Signature Information: Display signature file details  --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/GstarCAD2025NEW/DWFX%20Batch%20Digital%20Signature.html) · © Gstarsoft Co., Ltd.