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V25.1
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    IOcspClient Interface

    Allows you to send an Online Certificate Status Protocol (OCSP) request for a certificate.

    Namespace: DevExpress.Office.DigitalSignatures

    Assembly: DevExpress.Pdf.v25.1.Core.dll

    NuGet Package: DevExpress.Pdf.Core

    #Declaration

    public interface IOcspClient

    The following members return IOcspClient objects:

    #Remarks

    The OcspClient class is the default IOcspClient interface implementation.

    Pass the IOcspClient instance to the Pkcs7Signer object constructor, as shown below:

    using DevExpress.Pdf;
    using DevExpress.Office.DigitalSignatures;
    using DevExpress.Office.Tsp;
    
    using (var signer = new PdfDocumentSigner("Document.pdf"))
    {
        IOcspClient ocspClient = new OcspClient();
        ICrlClient crlClient = new CrlClient();
    
        // the freetsa client is used for demonstration purposes
        ITsaClient tsaClient = new TsaClient(new Uri(@"https://freetsa.org/tsr"), HashAlgorithmType.SHA256);
    
        // Create a PKCS#7 signature:
        Pkcs7Signer pkcs7Signature = new Pkcs7Signer("Signing Documents//testcert.pfx", "123",
         HashAlgorithmType.SHA256, tsaClient, ocspClient, crlClient, PdfSignatureProfile.PAdES_BES);
    
        // Create a new signature field:
        var signatureFieldInfo = new PdfSignatureFieldInfo(1);
        signatureFieldInfo.Name = "SignatureField";
        signatureFieldInfo.SignatureBounds = new PdfRectangle(10, 10, 150, 150);
    
        // Apply a signature with a new signature:
        var signature =
        new PdfSignatureBuilder(pkcs7Signature, signatureFieldInfo);
    
        // Sign and save the document:
        signer.SaveDocument("SignedDocument.pdf", signature);
    }
    
    See Also