public void Sign(String src, String name, String dest, X509Certificate[] chain,
ICipherParameters pk, String digestAlgorithm, PdfSigner.CryptoStandard subfilter,
String reason, String location, PdfSignatureAppearance.RenderingMode renderingMode, ImageData image)
{
PdfReader reader = new PdfReader(src);
PdfSigner signer = new PdfSigner(reader, new FileStream(dest, FileMode.Create), new StampingProperties());
// Create the signature appearance
PdfSignatureAppearance appearance = signer.GetSignatureAppearance();
appearance.SetReason(reason);
appearance.SetLocation(location);
// This name corresponds to the name of the field that already exists in the document.
signer.SetFieldName(name);
appearance.SetLayer2Text("Signed on " + DateTime.Now);
// Set the rendering mode for this signature.
appearance.SetRenderingMode(renderingMode);
// Set the Image object to render when the rendering mode is set to RenderingMode.GRAPHIC
// or RenderingMode.GRAPHIC_AND_DESCRIPTION.
appearance.SetSignatureGraphic(image);
PrivateKeySignature pks = new PrivateKeySignature(pk, digestAlgorithm);
// Sign the document using the detached mode, CMS or CAdES equivalent.
signer.SignDetached(pks, chain, null, null, null, 0, subfilter);
}
public static void Sign(string input, string output, ImageData stamper, ICipherParameters privateKey, X509Certificate[] chain, string flag)
{
PdfDocument document = new PdfDocument(new PdfReader(input));
PdfAcroForm acroForm = PdfAcroForm.GetAcroForm(document, false);
bool append = (acroForm != null && acroForm.GetSignatureFlags() != 0);
int pageNumber = document.GetNumberOfPages();
RegexBasedLocationExtractionStrategy strategy = new RegexBasedLocationExtractionStrategy(flag);
PdfDocumentContentParser parser = new PdfDocumentContentParser(document);
parser.ProcessContent(pageNumber, strategy);
var locations = new List <IPdfTextLocation>(strategy.GetResultantLocations());
document.Close();
StampingProperties properties = new StampingProperties();
properties = append ? properties.UseAppendMode() : properties;
PdfSigner signer = new PdfSigner(new PdfReader(input), new FileStream(output, FileMode.Create), properties);
signer.SetCertificationLevel(PdfSigner.CERTIFIED_NO_CHANGES_ALLOWED);
PdfSignatureAppearance appearance = signer.GetSignatureAppearance();
appearance.SetPageNumber(pageNumber);
int size = locations.Count;
if (size != 0)
{
IPdfTextLocation location = locations[size - 1];
float flagX = location.GetRectangle().GetX();
float flagY = location.GetRectangle().GetY();
float width = stamper.GetWidth();
float height = stamper.GetHeight();
float x = flagX - width / 2;
float y = flagY - height / 2;
appearance.SetRenderingMode(PdfSignatureAppearance.RenderingMode.GRAPHIC);
appearance.SetSignatureGraphic(stamper);
appearance.SetPageRect(new Rectangle(x, y, width, height));
}
PrivateKeySignature signature = new PrivateKeySignature(privateKey, DigestAlgorithms.SHA256);
signer.SignDetached(signature, chain, null, null, null, 0, PdfSigner.CryptoStandard.CADES);
}
private static void ConfiguraAparencia(PdfSigner objStamper, CertSimples cert, int X, int Y, int Largura, int Altura, int Pagina, int Rotation, string Contact = "", string Reason = "Assinatura Digital", string Location = "Indústrias Nucleares do Brasil S/A - INB", string Creator = "Assinador da INB", TipoAssinatura Tipo = TipoAssinatura.Normal, string Cargo = "", string CREACRM = "")
{
PdfDocument pdfDoc = objStamper.GetDocument();
PdfPage oPage = pdfDoc.GetPage(Pagina);
int LarguraAssinatura = Largura;
int AlturaAssinatura = Altura;
int X_Ajustado, Y_Ajustado;
X_Ajustado = X;
Y_Ajustado = Y;
var crop = oPage.GetCropBox();
float Left, Top, Width, Height;
Bitmap bmp = Graphic.ConfiguraBMP(cert, out Altura, Tipo);
if (Rotation == 270)
{
Left = (int)crop.GetLeft() + X_Ajustado;
Top = (int)crop.GetRight() - (Y_Ajustado + AlturaAssinatura + 5);
}
else if (Rotation == 90)
{
Left = (int)crop.GetRight() + X_Ajustado;
Top = (int)crop.GetLeft() - (Y_Ajustado + AlturaAssinatura + 5);
}
else
{
Left = (int)crop.GetLeft() + X_Ajustado;
Top = (int)crop.GetTop() - (Y_Ajustado + AlturaAssinatura + 5);
}
Width = LarguraAssinatura;
Height = AlturaAssinatura;
iText.Kernel.Geom.Rectangle oRetangulo = new iText.Kernel.Geom.Rectangle(Left, Top, Width, Height);
var pageSize = pdfDoc.GetPage(Pagina).GetMediaBox();
var signaturePosition = new iText.Kernel.Geom.Rectangle(pageSize.GetLeft(), pageSize.GetBottom(), pageSize.GetWidth(), pageSize.GetHeight());
PdfSignatureAppearance signatureAppearance = objStamper.GetSignatureAppearance();
var memoryStream = new MemoryStream();
bmp.Save(memoryStream, System.Drawing.Imaging.ImageFormat.Jpeg);
iText.IO.Image.ImageData pic = iText.IO.Image.ImageDataFactory.Create(memoryStream.ToArray());
signatureAppearance.SetReason(Reason);
signatureAppearance.SetLocation(Location);
signatureAppearance.SetSignatureCreator(Creator);
signatureAppearance.SetSignatureGraphic(pic);
signatureAppearance.SetRenderingMode(PdfSignatureAppearance.RenderingMode.GRAPHIC);
signatureAppearance.SetPageRect(oRetangulo);
signatureAppearance.SetPageNumber(Pagina);
}
protected void SignDocumentSignature(string filePath, ElectronicSignatureInfoDTO signatureInfo)
{
PdfSigner pdfSigner = new PdfSigner(new PdfReader(SRC), new FileStream(filePath, FileMode.Create),
new StampingProperties());
pdfSigner.SetCertificationLevel(PdfSigner.CERTIFIED_NO_CHANGES_ALLOWED);
// Set the name indicating the field to be signed.
// The field can already be present in the document but shall not be signed
pdfSigner.SetFieldName("signature");
ImageData clientSignatureImage = ImageDataFactory.Create(IMAGE_PATH);
// If you create new signature field (or use SetFieldName(System.String) with
// the name that doesn't exist in the document or don't specify it at all) then
// the signature is invisible by default.
PdfSignatureAppearance signatureAppearance = pdfSigner.GetSignatureAppearance();
signatureAppearance.SetRenderingMode(PdfSignatureAppearance.RenderingMode.GRAPHIC);
signatureAppearance.SetReason("");
signatureAppearance.SetLocationCaption("");
signatureAppearance.SetSignatureGraphic(clientSignatureImage);
signatureAppearance.SetPageNumber(signatureInfo.PageNumber);
signatureAppearance.SetPageRect(new Rectangle(signatureInfo.Left, signatureInfo.Bottom,
25, 25));
char[] password = "******".ToCharArray();
IExternalSignature pks = GetPrivateKeySignature(CERT_PATH, password);
X509Certificate[] chain = GetCertificateChain(CERT_PATH, password);
OCSPVerifier ocspVerifier = new OCSPVerifier(null, null);
OcspClientBouncyCastle ocspClient = new OcspClientBouncyCastle(ocspVerifier);
List <ICrlClient> crlClients = new List <ICrlClient>(new[] { new CrlClientOnline() });
// Sign the document using the detached mode, CMS or CAdES equivalent.
// This method closes the underlying pdf document, so the instance
// of PdfSigner cannot be used after this method call
pdfSigner.SignDetached(pks, chain, crlClients, ocspClient, null, 0,
PdfSigner.CryptoStandard.CMS);
}
