Batch sign multiple independent PDF files at once, using a PIV card/ PIN

Hi,

I got about 5,000 pdf files to sign digitally for each employee (a new change requires). ,The files are similar and have two signature files. Field1 is where the employee signed and signature two for me, the approver.

My organization uses smart cards, so a PIN has to be entered when signing.

Instead of signing 5,000 files and saving each, is there a way to automate this?

Maybe a script that takes the pass of all files, I enter the PIN once and automatically save all files to a directory.

Any assistance is much appreciated. I can share the file template if you would assist me.

Paul