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PdfDocumentSigner.SaveDocument(Stream, PdfSignatureBuilder[]) Method

Saves the PDF document to a stream with the specified document signatures.

Namespace: DevExpress.Pdf

Assembly: DevExpress.Docs.v23.2.dll

NuGet Package: DevExpress.Document.Processor


public void SaveDocument(
    Stream stream,
    params PdfSignatureBuilder[] signatures


Name Type Description
stream Stream

The stream to which to save the document.

signatures PdfSignatureBuilder[]

An array of signatures to apply to the document.


Call the SaveDocument method to apply one or more signatures to the PDF document. Specify the document to be signed in the PdfDocumentSigner object’s constructor.

You can add a signature to the existing signature field. Create a new PdfSignatureBuilder object with the signature field’s name passed as the constructor’s parameter.

Use the PdfSignatureFieldInfo instance in the PdfSignatureBuilder object constructor to create a new signature field. You can specify the field’s name, bounds, and rotation angle.

The PDF Document API supports PKCS#7 signatures. The Pkcs7Signer class allows you to create this signature type. You can create a Pkcs7SignerBase descendant to use a custom object to create the PKCS#7 signature.

using DevExpress.Pdf;
using DevExpress.Office.DigitalSignatures;

// Load a document to be signed
using (var signer = new PdfDocumentSigner("Document.pdf"))
    // Create a PKCS#7 signature
    Pkcs7Signer pkcs7Signature = new Pkcs7Signer("Signing Documents//testcert.pfx", "123", HashAlgorithmType.SHA256);

    // Apply a signature to the Sign form field
    var signatureBuilder = new PdfSignatureBuilder(pkcs7Signature, "Sign");

    // Specify the signature's image and signer information:
    signatureBuilder.SetImageData(System.IO.File.ReadAllBytes("Signing Documents//Jane Cooper.jpg"));
    signatureBuilder.Location = "USA";
    signatureBuilder.Name = "Jane Cooper";
    signatureBuilder.Reason = "I Agree";

    // Sign and save the document
    signer.SaveDocument("SignedDocument.pdf", signatureBuilder);
See Also