protected internal virtual void Sign(String src, String name, String dest, X509Certificate[] chain, ICipherParameters
pk, String digestAlgorithm, PdfSigner.CryptoStandard subfilter, String reason, String location, Rectangle
rectangleForNewField, bool setReuseAppearance, bool isAppendMode, int certificationLevel, float?fontSize
)
{
PdfReader reader = new PdfReader(src);
StampingProperties properties = new StampingProperties();
if (isAppendMode)
{
properties.UseAppendMode();
}
PdfSigner signer = new PdfSigner(reader, new FileStream(dest, FileMode.Create), properties);
signer.SetCertificationLevel(certificationLevel);
PdfFont font = PdfFontFactory.CreateFont(FONT, "WinAnsi", true);
// Creating the appearance
PdfSignatureAppearance appearance = signer.GetSignatureAppearance().SetReason(reason).SetLocation(location
).SetLayer2Font(font).SetReuseAppearance(setReuseAppearance);
if (rectangleForNewField != null)
{
appearance.SetPageRect(rectangleForNewField);
}
if (fontSize != null)
{
appearance.SetLayer2FontSize((float)fontSize);
}
signer.SetFieldName(name);
// Creating the signature
IExternalSignature pks = new PrivateKeySignature(pk, digestAlgorithm);
signer.SignDetached(pks, chain, null, null, null, 0, subfilter);
}
public virtual void TestSigningInAppendModeWithHybridDocument()
{
String src = sourceFolder + "hybrid.pdf";
String dest = destinationFolder + "signed_hybrid.pdf";
String cmp = sourceFolder + "cmp_signed_hybrid.pdf";
PdfSigner signer = new PdfSigner(new PdfReader(src), new FileStream(dest, FileMode.Create), new StampingProperties
().UseAppendMode());
PdfSignatureAppearance appearance = signer.GetSignatureAppearance();
appearance.SetLayer2FontSize(13.8f).SetPageRect(new Rectangle(36, 748, 200, 100)).SetPageNumber(1).SetReason
("Test").SetLocation("Nagpur");
signer.SetFieldName("Sign1");
signer.SetCertificationLevel(PdfSigner.NOT_CERTIFIED);
IExternalSignature pks = new PrivateKeySignature(pk, DigestAlgorithms.SHA256);
signer.SignDetached(pks, chain, null, null, null, 0, PdfSigner.CryptoStandard.CADES);
// Make sure iText can open the document
new PdfDocument(new PdfReader(dest)).Close();
// Assert that the document can be rendered correctly
NUnit.Framework.Assert.IsNull(new CompareTool().CompareVisually(dest, cmp, destinationFolder, "diff_", GetIgnoredAreaTestMap
(new Rectangle(36, 748, 200, 100))));
}
