Signer implementations.
| InteractiveSigner | Interface of a Signer that requires user interaction during the signing process. |
| InteractiveSigner.LoadingFeedbackListener | Callback for notifying the user of important events that could happen during private key loading. |
| PrivateKeySigner.OnPrivateKeyLoadedCallback | Callback for subclasses to provide the private key used for signing. |
| Signer.OnSigningParametersReadyCallback | Callback passed to prepareSigningParameters(OnSigningParametersReadyCallback) whenever a signing process was initiated and
the signer needs to load its SignatureProvider. |
| ContainedSignaturesSigner | Signer for contained signatures workflow. |
| MemorySigner | A Signer that uses a given KeyStore.PrivateKeyEntry to sign documents. |
| Pkcs12Signer | A Signer that loads the signing certificate from a PKCS12 file. |
| PrivateKeySigner | A Signer implementation for digitally signing PDFs using a KeyStore.PrivateKeyEntry. |
| Signer | Represents a signer (person and algorithm) used to digitally sign a document. |
| SignerOptions | Contains all the data needed to perform a signing operation. |
| SignerOptions.Builder | A helper class used for building the SignerOptions. |
| InteractiveSigner.LoadingFeedbackListener.InteractionRequiredEvent | Possible user interaction events that can be emitted via onInteractionRequired(InteractiveSigner.LoadingFeedbackListener.InteractionRequiredEvent). |