I can not attach a module for signature

Question

Hello everyone,

I'm trying to sign documents with my certificate through a acs smart card reader on the Adobe Acrobat. The card reader model is ACR39U-NF. It has been working flawlessly until recently.

Recently, I realized that it doesn't work and when I checked, there is no attached module under the Preferences > Signatures > Digital IDs > PKCS#11 Modules and Tokens.

By the way, other application can detect the device ACR39U-NF and the card with certificate in it successfully.

So, I can not click on the Attach Module, it's greyed out and passive. Please see the attached screenshot.

I'm not sure but this happened after a update (Operating System update or Adobe Acrobat update or Java update, I'm not sure.)

I'm also attaching my operating system details in the attached files section.

Thanks for your help in advance.

creative explorer · Answer

@Heisenberg122 Is it possible, try using a different smart card reader to see if the issue is specific to your ACR39U-NF reader or a more general problem with Acrobat's smart card support?

If you have a recent time machine or system restore point or backup from before the issue started, you could try restoring your system to that previous state. This might revert Acrobat or driver versions to a working configuration.

If not, not knowing what update was what. Maybe go to the ACS website (Advanced Card Systems Ltd.) and download the latest drivers for your ACR39U-NF card reader, specifically for your operating system. Before installing the new drivers, uninstall any existing drivers for the card reader. Then install the downloaded drivers and restart your computer.
https://www.acs.com.hk/en/products/425/acr39u-nf-pocketmate-ii-smart-card-reader-usb-type-c/

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