No puedo firmar un documento con certificado digital desde hace 2 semanas. Adobe Reader.

Hi josep_9645,

Thank you for reaching out. I'm sorry to hear that you are experiencing an issue.

You can still sign a document using the Use a certificate tool in Acrobat Reader. Please let us know what happens when you try to sign the document. Do you get any error message?

Please check if this happens with other documents as well. For testing purposes, could you create a test file and try to add a signature to that document? 

Share the Acrobat and OS version number on the machine. More information would help investigate this further.

Let us know if you need any help.

Thanks,

Meenakshi