/**
* Applies a digital signature to a document, possibly as a new revision, making
* possible multiple signatures. The returned PdfStamper
* can be used normally as the signature is only applied when closing.
* <p>
* A possible use for adding a signature without invalidating an existing one is:
* <p>
* <pre>
* KeyStore ks = KeyStore.getInstance("pkcs12");
* ks.load(new FileInputStream("my_private_key.pfx"), "my_password".toCharArray());
* String alias = (String)ks.aliases().nextElement();
* PrivateKey key = (PrivateKey)ks.getKey(alias, "my_password".toCharArray());
* Certificate[] chain = ks.getCertificateChain(alias);
* PdfReader reader = new PdfReader("original.pdf");
* FileOutputStream fout = new FileOutputStream("signed.pdf");
* PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0', new
* File("/temp"), true);
* PdfSignatureAppearance sap = stp.getSignatureAppearance();
* sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
* sap.setReason("I'm the author");
* sap.setLocation("Lisbon");
* // comment next line to have an invisible signature
* sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1, null);
* stp.close();
* </pre>
* @param reader the original document
* @param os the output stream or <CODE>null</CODE> to keep the document in the temporary file
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @param tempFile location of the temporary file. If it's a directory a temporary file will be created there.
* If it's a file it will be used directly. The file will be deleted on exit unless <CODE>os</CODE> is null.
* In that case the document can be retrieved directly from the temporary file. If it's <CODE>null</CODE>
* no temporary file will be created and memory will be used
* @param append if <CODE>true</CODE> the signature and all the other content will be added as a
* new revision thus not invalidating existing signatures
* @param conformanceLevel PDF/A conformance level of a new PDF document
* @return a <CODE>PdfAStamper</CODE>
* @throws DocumentException on error
* @throws IOException on error
*/
public static PdfAStamper CreateSignature(PdfReader reader, Stream os, char pdfVersion, String tempFile, bool append, PdfAConformanceLevel conformanceLevel)
{
PdfAStamper stp;
if (tempFile == null)
{
ByteBuffer bout = new ByteBuffer();
stp = new PdfAStamper(reader, bout, pdfVersion, append, conformanceLevel);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
stp.sigApp.Sigout = bout;
}
else
{
if (Directory.Exists(tempFile))
{
tempFile = Path.Combine(tempFile, Path.GetTempFileName());
tempFile += ".pdf";
}
FileStream fout = new FileStream(tempFile, FileMode.Create);
stp = new PdfAStamper(reader, fout, pdfVersion, append, conformanceLevel);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
stp.sigApp.SetTempFile(tempFile);
}
stp.sigApp.Originalout = os;
stp.sigApp.SetStamper(stp);
stp.hasSignature = true;
PdfDictionary catalog = reader.Catalog;
PdfDictionary acroForm = (PdfDictionary)PdfReader.GetPdfObject(catalog.Get(PdfName.ACROFORM), catalog);
if (acroForm != null)
{
acroForm.Remove(PdfName.NEEDAPPEARANCES);
stp.stamper.MarkUsed(acroForm);
}
return(stp);
}
public void ColorCheckTest4() {
Document document = new Document();
PdfAWriter writer = PdfAWriter.GetInstance(document, new FileStream(OUT + "pdfa2ColorCheckTest4.pdf", FileMode.Create), PdfAConformanceLevel.PDF_A_2B);
writer.CreateXmpMetadata();
document.Open();
FileStream iccProfileFileStream = File.Open(RESOURCES + "sRGB Color Space Profile.icm", FileMode.Open, FileAccess.Read, FileShare.Read);
ICC_Profile icc = ICC_Profile.GetInstance(iccProfileFileStream);
iccProfileFileStream.Close();
writer.SetOutputIntents("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", icc);
Font font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
document.Add(new Paragraph("Hello World", font));
document.Close();
PdfReader reader = new PdfReader(OUT + "pdfa2ColorCheckTest4.pdf");
PdfAStamper stamper = new PdfAStamper(reader, new FileStream(OUT + "pdfa2ColorCheckTest4_updating_failed.pdf", FileMode.Create), PdfAConformanceLevel.PDF_A_2B);
bool exceptionThrown = false;
try {
iccProfileFileStream = File.Open(RESOURCES + "sRGB Color Space Profile.icm", FileMode.Open, FileAccess.Read,
FileShare.Read);
icc = ICC_Profile.GetInstance(iccProfileFileStream);
iccProfileFileStream.Close();
stamper.Writer.SetOutputIntents("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", icc);
font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
font.Color = BaseColor.RED;
PdfContentByte canvas = stamper.GetOverContent(1);
canvas.SetFontAndSize(font.BaseFont, 12);
canvas.SetColorFill(BaseColor.RED);
ColumnText.ShowTextAligned(canvas,
Element.ALIGN_LEFT, new Paragraph("Hello World", font), 36, 775, 760);
stamper.Close();
}
catch (PdfAConformanceException) {
exceptionThrown = true;
}
reader.Close();
if (!exceptionThrown)
Assert.Fail("PdfAConformance exception should be thrown");
}
public void ColorCheckTest3() {
Document document = new Document();
PdfAWriter writer = PdfAWriter.GetInstance(document, new FileStream(OUT + "pdfa2ColorCheckTest3.pdf", FileMode.Create), PdfAConformanceLevel.PDF_A_2B);
writer.CreateXmpMetadata();
document.Open();
PdfDictionary sec = new PdfDictionary();
sec.Put(PdfName.GAMMA, new PdfArray(new float[] {2.2f, 2.2f, 2.2f}));
sec.Put(PdfName.MATRIX, new PdfArray(new float[] {0.4124f, 0.2126f, 0.0193f, 0.3576f, 0.7152f, 0.1192f, 0.1805f, 0.0722f, 0.9505f}));
sec.Put(PdfName.WHITEPOINT, new PdfArray(new float[] {0.9505f, 1f, 1.089f}));
PdfArray arr = new PdfArray(PdfName.CALRGB);
arr.Add(sec);
writer.SetDefaultColorspace(PdfName.DEFAULTGRAY, writer.AddToBody(arr).IndirectReference);
Font font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
document.Add(new Paragraph("Hello World", font));
document.Close();
PdfReader reader = new PdfReader(OUT + "pdfa2ColorCheckTest3.pdf");
PdfAStamper stamper = new PdfAStamper(reader, new FileStream(OUT + "pdfa2ColorCheckTest3_updating_failed.pdf", FileMode.Create), PdfAConformanceLevel.PDF_A_2B);
bool exceptionThrown = false;
try {
font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
font.Color = BaseColor.RED;
PdfContentByte canvas = stamper.GetOverContent(1);
canvas.SetFontAndSize(font.BaseFont, 12);
canvas.SetColorFill(BaseColor.RED);
ColumnText.ShowTextAligned(canvas, Element.ALIGN_LEFT, new Paragraph("Hello World", font), 36, 775, 0);
stamper.Close();
}
catch (PdfAConformanceException) {
exceptionThrown = true;
}
reader.Close();
if (!exceptionThrown)
Assert.Fail("PdfAConformance exception should be thrown");
reader = new PdfReader(OUT + "pdfa2ColorCheckTest3.pdf");
stamper = new PdfAStamper(reader, new FileStream(OUT + "pdfa2ColorCheckTest3_updating_ok.pdf", FileMode.Create), PdfAConformanceLevel.PDF_A_2B);
FileStream iccProfileFileStream = File.Open(RESOURCES + "sRGB Color Space Profile.icm", FileMode.Open, FileAccess.Read, FileShare.Read);
ICC_Profile icc = ICC_Profile.GetInstance(iccProfileFileStream);
iccProfileFileStream.Close();
stamper.Writer.SetOutputIntents("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", icc);
font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
font.Color = BaseColor.RED;
PdfContentByte canvas1 = stamper.GetOverContent(1);
canvas1.SetFontAndSize(font.BaseFont, 12);
canvas1.SetColorFill(BaseColor.RED);
ColumnText.ShowTextAligned(canvas1,
Element.ALIGN_LEFT, new Paragraph("Hello World", font), 36, 775, 0);
stamper.Close();
reader.Close();
}
public virtual void FileSpecCheckTest7() {
FileStream inPdf = new FileStream(RESOURCES + "fileSpec.pdf", FileMode.Open);
MemoryStream xml = new MemoryStream();
StreamWriter sr = new StreamWriter(xml);
sr.Write("<foo><foo2>Hello world</foo2></foo>");
sr.Close();
MemoryStream output = new MemoryStream();
PdfReader reader = new PdfReader(inPdf);
PdfAStamper stamper = new PdfAStamper(reader, output, PdfAConformanceLevel.PDF_A_3B);
stamper.CreateXmpMetadata();
PdfDictionary embeddedFileParams = new PdfDictionary();
embeddedFileParams.Put(PdfName.MODDATE, new PdfDate());
PdfFileSpecification fs = PdfFileSpecification.FileEmbedded(stamper.Writer, "foo", "foo",
xml.ToArray(), "text/xml", embeddedFileParams, 0);
fs.Put(PdfName.AFRELATIONSHIP, AFRelationshipValue.Source);
stamper.AddFileAttachment("description", fs);
stamper.Close();
reader.Close();
}
public void StamperTextTest() {
PdfReader reader = new PdfReader(RESOURCES + "pdfa1.pdf");
PdfAStamper stamper = new PdfAStamper(reader, new FileStream(OUT + "stamperTextTest.pdf", FileMode.Create),
PdfAConformanceLevel.PDF_A_1A);
PdfArtifact artifact = new PdfArtifact();
BaseFont bf = BaseFont.CreateFont(RESOURCES + "FreeMonoBold.ttf",
BaseFont.WINANSI, BaseFont.EMBEDDED);
artifact.SetType(PdfArtifact.ArtifactType.LAYOUT);
PdfContentByte canvas = stamper.GetOverContent(1);
canvas.OpenMCBlock(artifact);
canvas.BeginText();
canvas.SetFontAndSize(bf, 120);
canvas.ShowTextAligned(Element.ALIGN_CENTER, "TEST", 200, 400, 45);
canvas.EndText();
canvas.CloseMCBlock(artifact);
stamper.Close();
reader.Close();
}
public void StamperColorCheckTest() {
bool exceptionThrown = false;
try {
PdfReader reader = new PdfReader(RESOURCES + "pdfa1.pdf");
PdfAStamper stamper = new PdfAStamper(reader, new MemoryStream(), PdfAConformanceLevel.PDF_A_1A);
PdfContentByte canvas = stamper.GetOverContent(1);
Rectangle rect = stamper.Writer.PageSize;
canvas.SetColorFill(new CMYKColor(0.1f, 0.1f, 0.1f, 0.1f));
canvas.MoveTo(rect.Left, rect.Bottom);
canvas.LineTo(rect.Right, rect.Bottom);
canvas.LineTo(rect.Right, rect.Top);
canvas.Fill();
stamper.Close();
reader.Close();
} catch (PdfAConformanceException exc) {
exceptionThrown = true;
}
if (!exceptionThrown)
Assert.Fail("PdfAConformance exception should be thrown");
}
/**
* Applies a digital signature to a document, possibly as a new revision, making
* possible multiple signatures. The returned PdfStamper
* can be used normally as the signature is only applied when closing.
* <p>
* A possible use for adding a signature without invalidating an existing one is:
* <p>
* <pre>
* KeyStore ks = KeyStore.getInstance("pkcs12");
* ks.load(new FileInputStream("my_private_key.pfx"), "my_password".toCharArray());
* String alias = (String)ks.aliases().nextElement();
* PrivateKey key = (PrivateKey)ks.getKey(alias, "my_password".toCharArray());
* Certificate[] chain = ks.getCertificateChain(alias);
* PdfReader reader = new PdfReader("original.pdf");
* FileOutputStream fout = new FileOutputStream("signed.pdf");
* PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0', new
* File("/temp"), true);
* PdfSignatureAppearance sap = stp.getSignatureAppearance();
* sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
* sap.setReason("I'm the author");
* sap.setLocation("Lisbon");
* // comment next line to have an invisible signature
* sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1, null);
* stp.close();
* </pre>
* @param reader the original document
* @param os the output stream or <CODE>null</CODE> to keep the document in the temporary file
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @param tempFile location of the temporary file. If it's a directory a temporary file will be created there.
* If it's a file it will be used directly. The file will be deleted on exit unless <CODE>os</CODE> is null.
* In that case the document can be retrieved directly from the temporary file. If it's <CODE>null</CODE>
* no temporary file will be created and memory will be used
* @param append if <CODE>true</CODE> the signature and all the other content will be added as a
* new revision thus not invalidating existing signatures
* @param conformanceLevel PDF/A conformance level of a new PDF document
* @return a <CODE>PdfAStamper</CODE>
* @throws DocumentException on error
* @throws IOException on error
*/
public static PdfAStamper CreateSignature(PdfReader reader, Stream os, char pdfVersion, String tempFile, bool append, PdfAConformanceLevel conformanceLevel)
{
PdfAStamper stp;
if (tempFile == null) {
ByteBuffer bout = new ByteBuffer();
stp = new PdfAStamper(reader, bout, pdfVersion, append, conformanceLevel);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
stp.sigApp.Sigout = bout;
} else {
if (Directory.Exists(tempFile)) {
tempFile = Path.Combine(tempFile, Path.GetTempFileName());
tempFile += ".pdf";
}
FileStream fout = new FileStream(tempFile, FileMode.Create);
stp = new PdfAStamper(reader, fout, pdfVersion, append, conformanceLevel);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
stp.sigApp.SetTempFile(tempFile);
}
stp.sigApp.Originalout = os;
stp.sigApp.SetStamper(stp);
stp.hasSignature = true;
PdfDictionary catalog = reader.Catalog;
PdfDictionary acroForm = (PdfDictionary) PdfReader.GetPdfObject(catalog.Get(PdfName.ACROFORM), catalog);
if (acroForm != null) {
acroForm.Remove(PdfName.NEEDAPPEARANCES);
stp.stamper.MarkUsed(acroForm);
}
return stp;
}
virtual public void ManipulatePdfAutomaticTest() {
String fileName = "xmp_metadata_updated.pdf";
PdfReader reader = new PdfReader(CMP_FOLDER + "pdf_metadata.pdf");
PdfStamper stamper = new PdfAStamper(reader, new FileStream(OUT_FOLDER + fileName, FileMode.Create),
PdfAConformanceLevel.PDF_A_1A);
stamper.Close();
reader.Close();
CompareResults(fileName, fileName);
}
virtual public void ManipulatePdf2Test() {
String fileName = "xmp_metadata_added2.pdf";
PdfReader reader = new PdfReader(CMP_FOLDER + "pdf_metadata.pdf");
PdfStamper stamper = new PdfAStamper(reader, new FileStream(OUT_FOLDER + fileName, FileMode.Create),
PdfAConformanceLevel.PDF_A_1A);
MemoryStream os = new MemoryStream();
XmpWriter xmp = new PdfAXmpWriter(os, reader.Info, PdfAConformanceLevel.PDF_A_1A, stamper.Writer);
DublinCoreProperties.AddSubject(xmp.XmpMeta, "Hello World");
DublinCoreProperties.AddSubject(xmp.XmpMeta, "XMP & Metadata");
DublinCoreProperties.AddSubject(xmp.XmpMeta, "Metadata");
PdfProperties.SetVersion(xmp.XmpMeta, "1.4");
xmp.Close();
stamper.XmpMetadata = os.ToArray();
stamper.Close();
reader.Close();
CompareResults(fileName, fileName);
}
virtual public void TestPdfAStamper1()
{
string filename = OUT + "TestPdfAStamper1.pdf";
FileStream fos = new FileStream(filename, FileMode.Create);
Document document = new Document();
PdfAWriter writer = PdfAWriter.GetInstance(document, fos, PdfAConformanceLevel.PDF_A_1B);
writer.CreateXmpMetadata();
document.Open();
Font font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
document.Add(new Paragraph("Hello World", font));
FileStream iccProfileFileStream = File.Open(RESOURCES + "sRGB Color Space Profile.icm", FileMode.Open, FileAccess.Read, FileShare.Read);
ICC_Profile icc = ICC_Profile.GetInstance(iccProfileFileStream);
iccProfileFileStream.Close();
writer.SetOutputIntents("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", icc);
document.Close();
PdfReader reader = new PdfReader(filename);
FileStream stamperFileStream = new FileStream(OUT + "TestPdfAStamper1_.pdf", FileMode.Create);
PdfAStamper stamper = new PdfAStamper(reader, stamperFileStream, PdfAConformanceLevel.PDF_A_1B);
stamper.Close();
stamperFileStream.Close();
reader.Close();
}
virtual public void TestPdfAStamper3()
{
string filename = OUT + "TestPdfAStamper3.pdf";
FileStream fos = new FileStream(filename, FileMode.Create);
Document document = new Document();
PdfWriter writer = PdfWriter.GetInstance(document, fos);
writer.CreateXmpMetadata();
document.Open();
Font font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
document.Add(new Paragraph("Hello World", font));
document.Close();
PdfReader reader = new PdfReader(filename);
bool exceptionThrown = false;
try
{
FileStream stamperFileStream = new FileStream(OUT + "TestPdfAStamper3_.pdf", FileMode.Create);
PdfAStamper stamper = new PdfAStamper(reader, stamperFileStream, PdfAConformanceLevel.PDF_A_1A);
stamper.Close();
stamperFileStream.Close();
}
catch (PdfAConformanceException)
{
exceptionThrown = true;
}
reader.Close();
if (!exceptionThrown)
Assert.Fail("PdfAConformance exception should be thrown");
}
public void TestPdfAStamper2()
{
string filename = OUT + "TestPdfAStamper2.pdf";
FileStream fos = new FileStream(filename, FileMode.Create);
Document document = new Document();
PdfAWriter writer = PdfAWriter.GetInstance(document, fos, PdfAConformanceLevel.PDF_A_2B);
writer.CreateXmpMetadata();
document.Open();
Font font = FontFactory.GetFont(RESOURCES + "FreeMonoBold.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED, 12);
document.Add(new Paragraph("Hello World", font));
FileStream iccProfileFileStream = new FileStream(RESOURCES + "sRGB Color Space Profile.icm", FileMode.Open);
ICC_Profile icc = ICC_Profile.GetInstance(iccProfileFileStream);
iccProfileFileStream.Close();
writer.SetOutputIntents("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", icc);
document.Close();
PdfReader reader = new PdfReader(filename);
bool exceptionThrown = false;
try
{
FileStream stamperFileStream = new FileStream(OUT + "TestPdfAStamper2_.pdf", FileMode.Create);
PdfAStamper stamper = new PdfAStamper(reader, stamperFileStream, PdfAConformanceLevel.PDF_A_1B);
stamper.Close();
stamperFileStream.Close();
}
catch (PdfAConformanceException)
{
exceptionThrown = true;
}
reader.Close();
if (!exceptionThrown)
Assert.Fail("PdfAConformance exception should be thrown");
}
