officefileapi-devexpress-dot-pdf-dot-pdfsaveoptions-190d24e7.md
Gets or sets the signature, which can contain signing info, reason and location, to be used to save the signed document.
Namespace : DevExpress.Pdf
Assembly : DevExpress.Pdf.v25.2.Core.dll
NuGet Package : DevExpress.Pdf.Core
public PdfSignature Signature { get; set; }
Public Property Signature As PdfSignature
| Type | Description |
|---|---|
| PdfSignature |
A PdfSignature object that represents the PDF signature.
|
Use the Signature property to specify the PDF signature as an argument of the PdfDocumentProcessor.SaveDocument method to save the signed document.
This example illustrates how to add a visual signature to a PDF document.
To accomplish this task, do the following:
Create a PDF Document API component represented by an instance of the PdfDocumentProcessor class.
Load a document from a file using the PdfDocumentProcessor.LoadDocument method.
Create a certificate using a certificate file name and a password to access the certificate.
Create a document visual signature using one of the PdfSignature constructor overloads that takes 4 arguments. For example, using a certificate, image data represented by a byte array, and specifying the page number and signature bounds. The signature bounds are represented by a PdfOrientedRectangle object. You can specify the rotation angle for the signature (in radians) when creating a PdfOrientedRectangle object.
Specify signing location, contact info and reason using the PdfSignature.Location, PdfSignature.ContactInfo and PdfSignature.Reason properties, respectively.
Save the signed document with signing information by calling the PdfDocumentProcessor.SaveDocument method.
using DevExpress.Pdf;
using System;
using System.IO;
using System.Security.Cryptography.X509Certificates;
namespace PDFSignature {
class Program {
static void Main(string[] args) {
// Create a PDF document processor.
using (PdfDocumentProcessor documentProcessor = new PdfDocumentProcessor()) {
// Load a PDF document.
documentProcessor.LoadDocument(@"..\..\Demo.pdf");
// Create a visual signature using certificate, image data, and specifying page number, signature bounds and rotation angle.
X509Certificate2 certificate = new X509Certificate2(@"..\..\SignDemo.pfx", "dxdemo");
byte[] imageData = File.ReadAllBytes("..\\..\\Signature.png");
int pageNumber = 1;
int angleInDegrees = 45;
double angleInRadians = angleInDegrees * (Math.PI / 180);
PdfOrientedRectangle signatureBounds = new PdfOrientedRectangle(new PdfPoint(620, 210), 250, 90, angleInRadians);
PdfSignature signature = new PdfSignature(certificate, imageData, pageNumber, signatureBounds);
// Specify signing location, contact info and reason.
signature.Location = "USA";
signature.ContactInfo = "[email protected]";
signature.Reason = "Approved";
// Save the signed document.
documentProcessor.SaveDocument(@"..\..\SignedDocument.pdf", new PdfSaveOptions() { Signature = signature });
}
}
}
}
Imports DevExpress.Pdf
Imports System
Imports System.IO
Imports System.Security.Cryptography.X509Certificates
Namespace PDFSignature
Class Program
Private Shared Sub Main(ByVal args As String())
Using documentProcessor As PdfDocumentProcessor = New PdfDocumentProcessor()
documentProcessor.LoadDocument("..\..\Demo.pdf")
Dim certificate As X509Certificate2 = New X509Certificate2("..\..\SignDemo.pfx", "dxdemo")
Dim imageData As Byte() = File.ReadAllBytes("..\..\Signature.png")
Dim pageNumber As Integer = 1
Dim angleInDegrees As Integer = 45
Dim angleInRadians As Double = angleInDegrees * (Math.PI / 180)
Dim signatureBounds As PdfOrientedRectangle = New PdfOrientedRectangle(New PdfPoint(620, 210), 250, 90, angleInRadians)
Dim signature As PdfSignature = New PdfSignature(certificate, imageData, pageNumber, signatureBounds)
signature.Location = "USA"
signature.ContactInfo = "[email protected]"
signature.Reason = "Approved"
documentProcessor.SaveDocument("..\..\SignedDocument.pdf", New PdfSaveOptions() With {
.Signature = signature
})
End Using
End Sub
End Class
End Namespace
See Also