Click or drag to resize
Pdf Library for .NET

PdfSecurityManagerEnableLtv Property

Gets or sets a value indicating whether the signature added by Sign is made LTV-enabled (long-term validation) when the document is saved.

Namespace: SelectPdf.Universal
Assembly: SelectPdf.Universal (in SelectPdf.Universal.dll) Version: 26.5
Syntax
Copy
public bool EnableLtv { get; set; }

Property Value

Boolean
Remarks

When true, the revocation data of the signing certificate and of its issuers - an OCSP response or a certificate revocation list for each - is obtained from the addresses the certificates name and embedded in the saved document, together with the issuer certificates. The signature can then be validated after the certificates have expired, or once the issuer's services are no longer reachable, without going online.

The data is added in a revision of its own, after the signature, so the signature still covers everything it signed. The issuer certificates are found in the PKCS#12 file the signing certificate came from and in the system certificate stores. A self-signed root needs no revocation data.

Saving fails with a PdfDocumentException when a certificate of the chain names no OCSP responder or revocation list, or when none of them can be reached. Has no effect when Sign was not called. Default value is false.

See Also