Digital Signature Fields

I am filling in multiple acroforms at once and on specific pdf's (not all) I need to show the document so that the user is able to sign the file. Once the file has been opened, if the user closes the file before signing it, is their some property of a signature field that will allow me to check if it has been signed? I would like to continually check in a while loop until the user signs the file.

Hi Miles,

Currently we do not have support for finding out existence of a signature or verifying the validity of a signature with our API. We can only create a signature and sign it.

Please let me know if you have any other queries.

Regards,
Dhivya.