PdfSignatureField.HasValue Property

public bool HasValue { get; }

Public ReadOnly Property HasValue As Boolean
	Get

Property Value

Implements

If true, this form field has a valid value such that the form field is considered filled out; otherwise false. If Required is true, this property is useful to check if this form field is ready to be submitted.

NOTE: RAD PDF does NOT verify the integrity or trustworthiness of digital signatures. Please use an appropriate third-party tool to confirm if a PdfSignatureField's signature is valid and can be trusted.

Reference