com.aspose.words

Constructor Detail

• SignOptions

  public SignOptions()

Property Getters/Setters Detail

• getComments/setComments

  public java.lang.String getComments() / public void setComments(java.lang.String value)
  

  Specifies comments on the digital signature. Default value is empty string.

  Example:

  Shows how to digitally sign documents.

  // Create an X.509 certificate from a PKCS#12 store, which should contain a private key.
      CertificateHolder certificateHolder = CertificateHolder.create(getMyDir() + "morzal.pfx", "aw");
  
      // Create a comment and date which will be applied with our new digital signature.
      SignOptions signOptions = new SignOptions();
      {
          signOptions.setComments("My comment"); 
          signOptions.setSignTime(new Date());
      }
  
      // Take an unsigned document from the local file system via a file stream,
      // then create a signed copy of it determined by the filename of the output file stream.
      InputStream streamIn = new FileInputStream(getMyDir() + "Document.docx");
      try
      {
          OutputStream streamOut = new FileOutputStream(getArtifactsDir() + "DigitalSignatureUtil.SignDocument.docx");
          try
          {
              DigitalSignatureUtil.sign(streamIn, streamOut, certificateHolder, signOptions);
  }
          finally { if (streamOut != null) streamOut.close(); }
  }
      finally { if (streamIn != null) streamIn.close(); }

• getDecryptionPassword/setDecryptionPassword

  public java.lang.String getDecryptionPassword() / public void setDecryptionPassword(java.lang.String value)
  

  The password to decrypt source document. Default value is empty string.

  If OOXML document is encrypted, you should provide decryption password to decrypt source document before it will be signed. This is not required for documents in binary DOC format.

  Example:

  Shows how to sign encrypted document file.

  // Create an X.509 certificate from a PKCS#12 store, which should contain a private key.
  CertificateHolder certificateHolder = CertificateHolder.create(getMyDir() + "morzal.pfx", "aw");
  
  // Create a comment, date, and decryption password which will be applied with our new digital signature.
  SignOptions signOptions = new SignOptions();
  {
  signOptions.setComments("Comment");
      signOptions.setSignTime(new Date());
  signOptions.setDecryptionPassword("docPassword");
  }
  
  // Set a local system filename for the unsigned input document, and an output filename for its new digitally signed copy.
  String inputFileName = getMyDir() + "Encrypted.docx";
  String outputFileName = getArtifactsDir() + "DigitalSignatureUtil.DecryptionPassword.docx";
  
  DigitalSignatureUtil.sign(inputFileName, outputFileName, certificateHolder, signOptions);

• getProviderId/setProviderId

  public java.util.UUID getProviderId() / public void setProviderId(java.util.UUID value)
  

  Specifies the class ID of the signature provider. Default value is Empty (all zeroes) Guid.

  The cryptographic service provider (CSP) is an independent software module that actually performs cryptography algorithms for authentication, encoding, and encryption. MS Office reserves the value of {00000000-0000-0000-0000-000000000000} for its default signature provider.

  The GUID of the additionally installed provider should be obtained from the documentation shipped with the provider.

  In addition, all the installed cryptographic providers are enumerated in windows registry. It can be found in the following path: HKLM\SOFTWARE\Microsoft\Cryptography\Defaults\Provider. There is a key name "CP Service UUID" which corresponds to a GUID of signature provider.

  Example:

  Shows how to sign a document with a personal certificate and a signature line.

  Document doc = new Document();
  DocumentBuilder builder = new DocumentBuilder(doc);
  
  SignatureLineOptions signatureLineOptions = new SignatureLineOptions();
  signatureLineOptions.setSigner("vderyushev");
  signatureLineOptions.setSignerTitle("QA");
  signatureLineOptions.setEmail("vderyushev@aspose.com");
  signatureLineOptions.setShowDate(true);
  signatureLineOptions.setDefaultInstructions(false);
  signatureLineOptions.setInstructions("Please sign here.");
  signatureLineOptions.setAllowComments(true);
  
  SignatureLine signatureLine = builder.insertSignatureLine(signatureLineOptions).getSignatureLine();
  signatureLine.setProviderId(UUID.fromString("CF5A7BB4-8F3C-4756-9DF6-BEF7F13259A2"));
  
  doc.save(getArtifactsDir() + "DocumentBuilder.SignatureLineProviderId.docx");
  
  Date currentDate = new Date();
  
  SignOptions signOptions = new SignOptions();
  signOptions.setSignatureLineId(signatureLine.getId());
  signOptions.setProviderId(signatureLine.getProviderId());
  signOptions.setComments("Document was signed by vderyushev");
  signOptions.setSignTime(currentDate);
  
  CertificateHolder certHolder = CertificateHolder.create(getMyDir() + "morzal.pfx", "aw");
  
  DigitalSignatureUtil.sign(getArtifactsDir() + "DocumentBuilder.SignatureLineProviderId.docx",
          getArtifactsDir() + "DocumentBuilder.SignatureLineProviderId.Signed.docx", certHolder, signOptions);

• getSignatureLineId/setSignatureLineId

  public java.util.UUID getSignatureLineId() / public void setSignatureLineId(java.util.UUID value)
  

  Signature line identifier. Default value is Empty (all zeroes) Guid.

  When set, it associates SignatureLine with corresponding DigitalSignature.

  Example:

  Demonstrates how to add new signature line to the document and sign it with personal signature using SignatureLineId.

  public static void sign() throws Exception {
      String signPersonName = "Ron Williams";
      String srcDocumentPath = getMyDir() + "Document.docx";
      String dstDocumentPath = getArtifactsDir() + "SignDocumentCustom.Sign.docx";
      String certificatePath = getMyDir() + "morzal.pfx";
      String certificatePassword = "aw";
  
      // We need to create simple list with test signers for this example
      createSignPersonData();
      System.out.println("Test data successfully added!");
  
      // Get sign person object by name of the person who must sign a document
      // This an example, in real use case you would return an object from a database
      SignPersonTestClass signPersonInfo = gSignPersonList.stream().filter(x -> x.getName() == signPersonName).findFirst().get();
  
      if (signPersonInfo != null) {
          signDocument(srcDocumentPath, dstDocumentPath, signPersonInfo, certificatePath, certificatePassword);
          System.out.println("Document successfully signed!");
      } else {
          System.out.println("Sign person does not exist, please check your parameters.");
      }
  
      // Now do something with a signed document, for example, save it to your database
      // Use 'new Document(dstDocumentPath)' for loading a signed document
  }
  
  /// <summary>
  /// Signs the document obtained at the source location and saves it to the specified destination.
  /// </summary>
  private static void signDocument(final String srcDocumentPath, final String dstDocumentPath,
                                   final SignPersonTestClass signPersonInfo, final String certificatePath,
                                   final String certificatePassword) throws Exception {
      // Create new document instance based on a test file that we need to sign
      Document document = new Document(srcDocumentPath);
      DocumentBuilder builder = new DocumentBuilder(document);
  
      // Add info about responsible person who sign a document
      SignatureLineOptions signatureLineOptions = new SignatureLineOptions();
      signatureLineOptions.setSigner(signPersonInfo.getName());
      signatureLineOptions.setSignerTitle(signPersonInfo.getPosition());
  
      // Add signature line for responsible person who sign a document
      SignatureLine signatureLine = builder.insertSignatureLine(signatureLineOptions).getSignatureLine();
      signatureLine.setId(signPersonInfo.getPersonId());
  
      // Save a document with line signatures into temporary file for future signing
      builder.getDocument().save(dstDocumentPath);
  
      // Create holder of certificate instance based on your personal certificate
      // This is the test certificate generated for this example
      CertificateHolder certificateHolder = CertificateHolder.create(certificatePath, certificatePassword);
  
      // Link our signature line with personal signature
      SignOptions signOptions = new SignOptions();
      signOptions.setSignatureLineId(signPersonInfo.getPersonId());
      signOptions.setSignatureLineImage(signPersonInfo.getImage());
  
      // Sign a document which contains signature line with personal certificate
      DigitalSignatureUtil.sign(dstDocumentPath, dstDocumentPath, certificateHolder, signOptions);
  }
  
  /// <summary>
  /// Create test data that contains info about sing persons.
  /// </summary>
  private static void createSignPersonData() throws IOException {
      InputStream inputStream = new FileInputStream(getImageDir() + "Logo.jpg");
  
      gSignPersonList = new ArrayList<>();
      gSignPersonList.add(new SignPersonTestClass(UUID.randomUUID(), "Ron Williams", "Chief Executive Officer",
              DocumentHelper.getBytesFromStream(inputStream)));
      gSignPersonList.add(new SignPersonTestClass(UUID.randomUUID(), "Stephen Morse", "Head of Compliance",
              DocumentHelper.getBytesFromStream(inputStream)));
  }
  
  private static ArrayList<SignPersonTestClass> gSignPersonList;

• getSignatureLineImage/setSignatureLineImage

  public byte[] getSignatureLineImage() / public void setSignatureLineImage(byte[] value)
  

  The image that will be shown in associated SignatureLine. Default value is null.

  Example:

  Demonstrates how to add new signature line to the document and sign it with personal signature using SignatureLineId.

  public static void sign() throws Exception {
      String signPersonName = "Ron Williams";
      String srcDocumentPath = getMyDir() + "Document.docx";
      String dstDocumentPath = getArtifactsDir() + "SignDocumentCustom.Sign.docx";
      String certificatePath = getMyDir() + "morzal.pfx";
      String certificatePassword = "aw";
  
      // We need to create simple list with test signers for this example
      createSignPersonData();
      System.out.println("Test data successfully added!");
  
      // Get sign person object by name of the person who must sign a document
      // This an example, in real use case you would return an object from a database
      SignPersonTestClass signPersonInfo = gSignPersonList.stream().filter(x -> x.getName() == signPersonName).findFirst().get();
  
      if (signPersonInfo != null) {
          signDocument(srcDocumentPath, dstDocumentPath, signPersonInfo, certificatePath, certificatePassword);
          System.out.println("Document successfully signed!");
      } else {
          System.out.println("Sign person does not exist, please check your parameters.");
      }
  
      // Now do something with a signed document, for example, save it to your database
      // Use 'new Document(dstDocumentPath)' for loading a signed document
  }
  
  /// <summary>
  /// Signs the document obtained at the source location and saves it to the specified destination.
  /// </summary>
  private static void signDocument(final String srcDocumentPath, final String dstDocumentPath,
                                   final SignPersonTestClass signPersonInfo, final String certificatePath,
                                   final String certificatePassword) throws Exception {
      // Create new document instance based on a test file that we need to sign
      Document document = new Document(srcDocumentPath);
      DocumentBuilder builder = new DocumentBuilder(document);
  
      // Add info about responsible person who sign a document
      SignatureLineOptions signatureLineOptions = new SignatureLineOptions();
      signatureLineOptions.setSigner(signPersonInfo.getName());
      signatureLineOptions.setSignerTitle(signPersonInfo.getPosition());
  
      // Add signature line for responsible person who sign a document
      SignatureLine signatureLine = builder.insertSignatureLine(signatureLineOptions).getSignatureLine();
      signatureLine.setId(signPersonInfo.getPersonId());
  
      // Save a document with line signatures into temporary file for future signing
      builder.getDocument().save(dstDocumentPath);
  
      // Create holder of certificate instance based on your personal certificate
      // This is the test certificate generated for this example
      CertificateHolder certificateHolder = CertificateHolder.create(certificatePath, certificatePassword);
  
      // Link our signature line with personal signature
      SignOptions signOptions = new SignOptions();
      signOptions.setSignatureLineId(signPersonInfo.getPersonId());
      signOptions.setSignatureLineImage(signPersonInfo.getImage());
  
      // Sign a document which contains signature line with personal certificate
      DigitalSignatureUtil.sign(dstDocumentPath, dstDocumentPath, certificateHolder, signOptions);
  }
  
  /// <summary>
  /// Create test data that contains info about sing persons.
  /// </summary>
  private static void createSignPersonData() throws IOException {
      InputStream inputStream = new FileInputStream(getImageDir() + "Logo.jpg");
  
      gSignPersonList = new ArrayList<>();
      gSignPersonList.add(new SignPersonTestClass(UUID.randomUUID(), "Ron Williams", "Chief Executive Officer",
              DocumentHelper.getBytesFromStream(inputStream)));
      gSignPersonList.add(new SignPersonTestClass(UUID.randomUUID(), "Stephen Morse", "Head of Compliance",
              DocumentHelper.getBytesFromStream(inputStream)));
  }
  
  private static ArrayList<SignPersonTestClass> gSignPersonList;

• getSignTime/setSignTime

  public java.util.Date getSignTime() / public void setSignTime(java.util.Date value)
  

  The date of signing. Default value is current time.

  Example:

  Shows how to digitally sign documents.

  // Create an X.509 certificate from a PKCS#12 store, which should contain a private key.
      CertificateHolder certificateHolder = CertificateHolder.create(getMyDir() + "morzal.pfx", "aw");
  
      // Create a comment and date which will be applied with our new digital signature.
      SignOptions signOptions = new SignOptions();
      {
          signOptions.setComments("My comment"); 
          signOptions.setSignTime(new Date());
      }
  
      // Take an unsigned document from the local file system via a file stream,
      // then create a signed copy of it determined by the filename of the output file stream.
      InputStream streamIn = new FileInputStream(getMyDir() + "Document.docx");
      try
      {
          OutputStream streamOut = new FileOutputStream(getArtifactsDir() + "DigitalSignatureUtil.SignDocument.docx");
          try
          {
              DigitalSignatureUtil.sign(streamIn, streamOut, certificateHolder, signOptions);
  }
          finally { if (streamOut != null) streamOut.close(); }
  }
      finally { if (streamIn != null) streamIn.close(); }