External Signing Services on Android
PSPDFKit supports external signature providers, such as hardware security modules (HSMs) and other signing entities.
SigningManager.signDocument provides a byte array to be signed by any external signing service.
The simplest way to sign a document is to provide
SigningManager will sign it. However, if a user needs to sign with an external service, then instead of a private key entry, the user can provide a list of
X509Certificates and then sign the document using the
CustomSigning suspended function.
For an interactive example of external signing services on Android, check out
ManualSigningExamplein the Catalog app.