An array with all available signature fields in the document. The signatureFields represents all signature fields in a file, whether it is signed or not.
The flag indicates whether the document is signed. Note, a document is considered signed if it contains at least one signature field with the signatureValue property filled in.
An array with signature field(s) which was used to sign the document. The signedByFields only represents signed signature fields.
Information about signature used in document.