static void Main(string[] args)
{
// Create the pdf document
//PDF4NET v5: PDFDocument doc = new PDFDocument();
PDFFixedDocument doc = new PDFFixedDocument();
// Create a blank page
//PDF4NET v5: PDFPage page = doc.AddPage();
PDFPage page = doc.Pages.Add();
// Create the signature field.
PDFSignatureField sign = new PDFSignatureField("Signature");
//PDF4NET v5: sign.Widgets[0].DisplayRectangle = new DisplayRectangle(50, 100, 200, 40);
sign.Widgets[0].DisplayRectangle = new PDFDisplayRectangle(50, 100, 200, 40);
// Create the digital signature.
//PDF4NET v5: sign.Signature = new PDFDigitalSignature();
PDFCmsDigitalSignature ds = new PDFCmsDigitalSignature();
// The certificate is loaded from disk, but it also can be loaded from a certificate store.
ds.Certificate = new X509Certificate2("..\\..\\..\\..\\..\\SupportFiles\\O2SolutionsDemoCertificate.pfx", "P@ssw0rd!", X509KeyStorageFlags.Exportable);
ds.Location = "Romania";
ds.Reason = "For demo";
ds.ContactInfo = "*****@*****.**";
sign.Signature = ds;
page.Fields.Add(sign);
doc.Save("Sample_DigitalSign.pdf");
}
/// <summary>
/// Main method for running the sample.
/// </summary>
public static SampleOutputInfo[] Run(Stream formStream, X509Certificate2 certificate)
{
PDFFixedDocument document = new PDFFixedDocument(formStream);
PDFSignatureField signField = document.Form.Fields["signhere"] as PDFSignatureField;
PDFCmsDigitalSignature signature = new PDFCmsDigitalSignature();
signature.SignatureDigestAlgorithm = PDFDigitalSignatureDigestAlgorithm.Sha256;
signature.Certificate = certificate;
signature.ContactInfo = "*****@*****.**";
signature.Location = "Cluj Napoca";
signature.Name = "O2 Solutions Support";
signature.Reason = "Simple signature";
signField.Signature = signature;
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "simplesignature.pdf") };
return(output);
}
/// <summary>
/// Main method for running the sample.
/// </summary>
public static SampleOutputInfo[] Run(Stream formStream, X509Certificate2 certificate)
{
PDFFixedDocument document = new PDFFixedDocument(formStream);
document.PDFVersion = PDFVersion.Version16;
PDFSignatureField signField = document.Form.Fields["signhere"] as PDFSignatureField;
PDFCmsDigitalSignature signature = new PDFCmsDigitalSignature();
signature.SignatureDigestAlgorithm = PDFDigitalSignatureDigestAlgorithm.Sha256;
signature.Certificate = certificate;
signature.ContactInfo = "*****@*****.**";
signature.Location = "Cluj Napoca";
signature.Name = "O2 Solutions Support";
signature.Reason = "Certifying signature";
signField.Signature = signature;
// Certify the document with the signature included in the field.
document.CertifyDocument(signField, PDFDigitalSignatureAllowedChanges.AllowFormFilling);
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "certifyingsignature.pdf") };
return(output);
}
/// <summary>
/// Main method for running the sample.
/// </summary>
public static void Main(string[] args)
{
string supportPath = "..\\..\\..\\..\\..\\SupportFiles\\";
X509Certificate2 certificate = new X509Certificate2(supportPath + "O2SolutionsDemoCertificate.pfx", "P@ssw0rd!", X509KeyStorageFlags.Exportable);
FileStream input = File.OpenRead(supportPath + "formfill.pdf");
PDFFixedDocument document = new PDFFixedDocument(input);
input.Close();
// Sign the document
PDFSignatureField signField = document.Form.Fields["signhere"] as PDFSignatureField;
PDFCmsDigitalSignature signature = new PDFCmsDigitalSignature();
signature.SignatureDigestAlgorithm = PDFDigitalSignatureDigestAlgorithm.Sha256;
signature.Certificate = certificate;
signature.ContactInfo = "*****@*****.**";
signature.Location = "Cluj Napoca";
signature.Name = "O2 Solutions Support";
signature.Reason = "Simple signature";
signField.Signature = signature;
// Load the signature image
FileStream signatureImageStream = File.OpenRead(supportPath + "signature.png");
PDFPngImage signatureImage = new PDFPngImage(signatureImageStream);
signatureImageStream.Close();
// Create the signature custom appearance
PDFAnnotationAppearance aa = new PDFAnnotationAppearance(signField.Widgets[0].VisualRectangle.Width, signField.Widgets[0].VisualRectangle.Height);
aa.Canvas.DrawImage(signatureImage, 0, 0, aa.Width, aa.Height);
// Set the custom appearance on the signature field
signField.Widgets[0].NormalAppearance = aa;
using (FileStream output = File.Create("DigitalSignatureWithCustomAppearance.pdf"))
{
document.Save(output);
}
}
/// <summary>
/// Main method for running the sample.
/// </summary>
public static void Main(string[] args)
{
string supportPath = "..\\..\\..\\..\\..\\SupportFiles\\";
X509Certificate2 certificate = new X509Certificate2(supportPath + "O2SolutionsDemoCertificate.pfx", "P@ssw0rd!", X509KeyStorageFlags.Exportable);
FileStream input = File.OpenRead(supportPath + "formfill.pdf");
PDFFixedDocument document = new PDFFixedDocument(input);
input.Close();
// Sign the document
PDFSignatureField signField = document.Form.Fields["signhere"] as PDFSignatureField;
PDFCmsDigitalSignature signature = new PDFCmsDigitalSignature();
signature.SignatureDigestAlgorithm = PDFDigitalSignatureDigestAlgorithm.Sha256;
signature.Certificate = certificate;
signature.ContactInfo = "*****@*****.**";
signature.Location = "Cluj Napoca";
signature.Name = "O2 Solutions Support";
signature.Reason = "Simple signature";
signField.Signature = signature;
using (FileStream output = File.Create("MultipleDigitalSignatures.pdf"))
{
document.Save(output);
}
// For the second signature the document must be opened in incremental update mode
// by passing the PDFDocumentFeatures object to PDFFixedDocument constructor
PDFDocumentFeatures df = new PDFDocumentFeatures();
// Do not load file attachments, new file attachments cannot be added.
df.EnableDocumentFileAttachments = false;
// Load form fields to support signing.
df.EnableDocumentFormFields = true;
// Do not load embedded JavaScript code, new JavaScript code at document level cannot be added.
df.EnableDocumentJavaScriptFragments = false;
// Do not load the named destinations, new named destinations cannot be created.
df.EnableDocumentNamedDestinations = false;
// Do not load the document outlines, new outlines cannot be created.
df.EnableDocumentOutline = false;
// Do not load annotations, new annotations cannot be added to existing pages.
df.EnablePageAnnotations = true;
// Do not load the page graphics, new graphics cannot be added to existing pages.
df.EnablePageGraphics = false;
// Incremental update mode requires the changes to be added to the input file
input = File.OpenRead("MultipleDigitalSignatures.pdf");
document = new PDFFixedDocument(input, df);
input.Close();
signField = new PDFSignatureField("sign2");
document.Pages[0].Fields.Add(signField);
signField.Widgets[0].VisualRectangle = new PDFDisplayRectangle(150, 350, 200, 60);
signature = new PDFCmsDigitalSignature();
signature.SignatureDigestAlgorithm = PDFDigitalSignatureDigestAlgorithm.Sha256;
signature.Certificate = certificate;
signature.ContactInfo = "*****@*****.**";
signature.Location = "Cluj Napoca";
signature.Name = "O2 Solutions Support";
signature.Reason = "Simple signature";
signField.Signature = signature;
// The same file used as input must also be used as output as the Save method saves only the changes and not the entire file.
using (FileStream output = File.Open("MultipleDigitalSignatures.pdf", FileMode.Open))
{
document.Save(output);
}
}