Digital sign tab

This tab provides functionality for digitally signing a PDF file. The digital signature is in PAdES format. The available sections are

File->Options->Digital signature 
and  
File->Options->PDF Logo

in which digital signature settings can be customized. This tab is not enabled in North American installations.

Feature	Description
	Start the digital signature process in the current document. If the smart card or micro SD also contains a digital signature logo, this will be displayed in the document.The digital signature can also be invisible. You can modify the appearance by selecting the option "Do not show the signature logo in the PDF documents."
	Adds a digital signature including a timestamp according to the parameters indicated in the options.
	Performs a countersignature operation on the current document. The counter-signature or "Sign to Matrix" indicates that any added signature attaches to the previous document and signatures in CAdES format. See link for more information: http://www.agid.gov.it/sites/default/files/linee_guida/firme_multiple.pdf
	Places a timestamp in the current document. Connects to the TSA service indicated in the options according to the configured account. The timestamp inherits the logo and additional settings of the digital signature.