com.itextpdf.kernel.pdf Documentation Differences

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com.itextpdf.kernel.pdf Documentation Differences

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 Class EncryptionProperties, EncryptionProperties setPublicKeyEncryption(Certificate[], int[], int) 
  
 
  
 
  
    Sets the certificate encryption options for the document.  An array of one or more public 
       certificates 
     certificates must be provided together with an array of the same 
       size 
     size  for the permissions for each certificate. 
      @param certs the public certificates to be used for the encryption @param permissions   the user permissions for each of the certificates The open permissions for the document can be 
       AllowPrinting 
      EncryptionConstants.ALLOW_PRINTING,  
       AllowModifyContents 
      EncryptionConstants.ALLOW_MODIFY_CONTENTS,  
       AllowCopy 
      EncryptionConstants.ALLOW_COPY,  
       AllowModifyAnnotations 
      EncryptionConstants.ALLOW_MODIFY_ANNOTATIONS, 
       AllowFillIn 
      EncryptionConstants.ALLOW_FILL_IN,  
       AllowScreenReaders 
      EncryptionConstants.ALLOW_SCREENREADERS,  
       AllowAssembly 
      
       and 
      
       AllowDegradedPrinting 
      EncryptionConstants.ALLOW_ASSEMBLY and EncryptionConstants.ALLOW_DEGRADED_PRINTING.  The permissions can be combined by ORing 
       them 
     them @param encryptionAlgorithm the type of encryption. It can be one of EncryptionConstants.STANDARD_ENCRYPTION_40, EncryptionConstants.STANDARD_ENCRYPTION_128, EncryptionConstants.ENCRYPTION_AES128 or EncryptionConstants.ENCRYPTION_AES256.  Optionally EncryptionConstants.DO_NOT_ENCRYPT_METADATA   can be ORed to output the metadata in 
       cleartext 
     cleartext.  
       See 
       EncryptionConstants.EMBEDDED_FILES_ONLY can be ORed as well. 
       
       @param 
      
       certs 
      
       the 
      
       public 
      
       certificates 
      
       to 
      Please be 
       used for 
     aware that the 
       encryption 
     passed 
       @param 
     encryption types may override permissions:  
       the 
      
       user 
      
       permissions 
      
       for 
      
       each 
      
       of 
      
       the 
      
       certificates 
      
       @param 
      
       encryptionAlgorithm 
      
       the 
      
       type 
      
       of 
      
       encryption. 
      
       It 
      
       can 
      
       be 
      
       one 
      
       of 
      EncryptionConstants.STANDARD_ENCRYPTION_40 
       
         , 
        
       STANDARD 
     implicitly sets EncryptionConstants.DO_ 
       
         ENCRYPTION 
       NOT_ 
       
         128, 
       ENCRYPT_METADATA and  
       ENCRYPTION 
      EncryptionConstants.EMBEDDED_ 
       
         AES128 
       FILES_ONLY 
       or 
     as false;   EncryptionConstants.STANDARD_ENCRYPTION_ 
       
         AES256 
       128 implicitly sets EncryptionConstants.EMBEDDED_FILES_ONLY as false; @return this EncryptionProperties 
  
 Class EncryptionProperties, EncryptionProperties setStandardEncryption(byte[], byte[], int, int) 
  
 
  
 
  
    Sets the encryption options for the document.  
     The 
   @param userPassword 
     and 
    
     the 
    
     ownerPassword 
    
     can 
    the user password. Can be null or 
     have 
   of zero length
     . 
   , 
     In 
   which 
     this 
   is equal to  
     case 
     omitting the 
     ownerPassword 
   user 
     is 
   password @param 
     replaced 
   ownerPassword 
     by 
    the owner password. If it's null or empty, iText will generate  a random string to be used as the owner password @param permissions the user permissions. The open permissions for the document can be  EncryptionConstants.ALLOW_PRINTING,   EncryptionConstants.ALLOW_MODIFY_CONTENTS,   EncryptionConstants.ALLOW_COPY,   EncryptionConstants.ALLOW_MODIFY_ANNOTATIONS,  EncryptionConstants.ALLOW_FILL_IN,   EncryptionConstants.ALLOW_SCREENREADERS,  
     ALLOW_ASSEMBLY 
    
     and 
    
     ALLOW_DEGRADED_PRINTING. 
    
     The 
    
     permissions 
    
     can 
    
     be 
    
     combined 
    
     by 
    
     ORing 
    
     them. 
     
     See 
     EncryptionConstants.ALLOW_ASSEMBLY
     . 
    
     @param 
   and  
     userPassword 
    
     the 
    
     user 
    
     password. 
    
     Can 
    
     be 
    
     null 
    
     or 
    
     empty 
    
     @param 
    
     ownerPassword 
    
     the 
    
     owner 
    
     password 
    EncryptionConstants.ALLOW_DEGRADED_PRINTING.  
     Can 
    
     be 
    
     null 
    
     or 
    
     empty 
    
     @param 
    
     permissions 
    
     the 
    
     user 
    The permissions can be combined by ORing 
     permissions 
   them  @param encryptionAlgorithm the type of encryption. It can be one 
     of 
   of   EncryptionConstants.STANDARD_ENCRYPTION_40,   EncryptionConstants.STANDARD_ENCRYPTION_128, EncryptionConstants.ENCRYPTION_AES128 
     or 
   or   EncryptionConstants.ENCRYPTION_ 
     
       AES256 
     AES256. Optionally EncryptionConstants.DO_NOT_ENCRYPT_METADATA can be 
     ored 
   OEed   to output the metadata in cleartext. EncryptionConstants.EMBEDDED_FILES_ONLY can be ORed as well. Please be aware that the passed encryption types may override permissions: EncryptionConstants.STANDARD_ENCRYPTION_40 implicitly sets EncryptionConstants.DO_NOT_ENCRYPT_METADATA and EncryptionConstants.EMBEDDED_FILES_ONLY as false; EncryptionConstants.STANDARD_ENCRYPTION_128 implicitly sets EncryptionConstants.EMBEDDED_FILES_ONLY as false; @return this EncryptionProperties 
   
  
 Class PdfEncryption, constructor PdfEncryption(Certificate[], int[], int, PdfVersion) 
  
 
  
 
  
    Creates the certificate encryption.  An array of one or more public 
       certificates 
     certificates must be provided together 
       with 
     with  an array of the same size for the permissions for each certificate. 
      @param certs the public certificates to be used for the encryption @param permissions the user permissions for each of the certificates   The open permissions for the document can be  EncryptionConstants.ALLOW_PRINTING,   EncryptionConstants.ALLOW_MODIFY_CONTENTS,  EncryptionConstants.ALLOW_COPY,   EncryptionConstants.ALLOW_MODIFY_ANNOTATIONS,  EncryptionConstants.ALLOW_FILL_IN,   EncryptionConstants.ALLOW_SCREENREADERS,  EncryptionConstants.ALLOW_ASSEMBLY 
       and 
     and   EncryptionConstants.ALLOW_DEGRADED_PRINTING. 
       The 
      
       permissions 
      
       can 
      
       be 
      
       combined 
      
       by 
      
       ORing 
      
       them. 
      
       @param 
      
       certs 
      
       the 
      
       public 
      
       certificates 
      
       to 
     The permissions can be 
       used for the encryption 
     combined by ORing them  @param 
       permissions 
     encryptionType the type of 
       the 
     encryption. 
       user permissions for each of 
     It can be one of  
       the 
      
       certificates 
      
       @param 
      
       encryptionType 
      
       the 
      
       type 
      
       of 
      
       encryption. 
      
       It 
      
       can 
      
       be 
      
       one 
      
       of 
        EncryptionConstants.STANDARD_ENCRYPTION_40,  EncryptionConstants.STANDARD_ENCRYPTION_128,   EncryptionConstants.ENCRYPTION_AES_128 or EncryptionConstants.ENCRYPTION_AES_256. Optionally EncryptionConstants.DO_NOT_ENCRYPT_METADATA can be 
       ORed 
     ORed   to output the metadata in cleartext. EncryptionConstants.EMBEDDED_FILES_ONLY can be ORed as well. Please be aware that the passed encryption types may override permissions: EncryptionConstants.STANDARD_ENCRYPTION_40 implicitly sets EncryptionConstants.DO_NOT_ENCRYPT_METADATA and EncryptionConstants.EMBEDDED_FILES_ONLY as false; EncryptionConstants.STANDARD_ENCRYPTION_128 implicitly sets EncryptionConstants.EMBEDDED_FILES_ONLY as false; @param version the PdfVersion of the target document for encryption 
  
 Class PdfEncryption, constructor PdfEncryption(byte[], byte[], int, int, byte[], PdfVersion) 
  
 
  
 
  
    Creates the encryption.  
     The 
   @param userPassword 
     and 
    
     the 
    
     ownerPassword 
   the 
     can 
   user password. Can be null or 
     have 
   of zero length
     . 
   , which is equal to  
     In 
    
     this 
    
     case 
     omitting the 
     ownerPassword is 
   user password  
     replaced 
   @param 
     by 
   ownerPassword the owner password. If it's null or empty, iText will generate   a random string
     . 
    to be used as the owner password @param permissions the user permissions   The open permissions for the document can be  EncryptionConstants.ALLOW_PRINTING,   EncryptionConstants.ALLOW_MODIFY_CONTENTS,  EncryptionConstants.ALLOW_COPY,   EncryptionConstants.ALLOW_MODIFY_ANNOTATIONS,  EncryptionConstants.ALLOW_FILL_IN,   EncryptionConstants.ALLOW_SCREENREADERS,  EncryptionConstants.ALLOW_ASSEMBLY 
     and 
   and   EncryptionConstants.ALLOW_DEGRADED_PRINTING. 
     The 
    
     permissions 
    
     can 
    
     be 
    
     combined 
    
     by 
    
     ORing 
    
     them. 
    
     @param 
    
     userPassword 
    
     the 
    
     user 
    
     password. 
    
     Can 
    The permissions can be 
     null 
   combined 
     or 
   by ORing 
     empty 
   them  @param 
     ownerPassword 
   encryptionType the 
     owner 
   type 
     password 
   of encryption. 
     Can 
   It can be 
     null or 
   one of  
     empty 
    
     @param 
    
     permissions 
    
     the 
    
     user 
    
     permissions 
    
     @param 
    
     encryptionType 
    
     the 
    
     type 
    
     of 
    
     encryption. 
    
     It 
    
     can 
    
     be 
    
     one 
    
     of 
      EncryptionConstants.STANDARD_ENCRYPTION_40,  EncryptionConstants.STANDARD_ENCRYPTION_128,   EncryptionConstants.ENCRYPTION_AES_128 or EncryptionConstants.ENCRYPTION_AES_256. Optionally EncryptionConstants.DO_NOT_ENCRYPT_METADATA can 
     be 
   be   ORed to output the metadata in 
     cleartext 
   cleartext. EncryptionConstants.EMBEDDED_FILES_ONLY can be ORed as well. Please be aware that the passed encryption types may override permissions: EncryptionConstants.STANDARD_ENCRYPTION_40 implicitly sets EncryptionConstants.DO_NOT_ENCRYPT_METADATA and EncryptionConstants.EMBEDDED_FILES_ONLY as false; EncryptionConstants.STANDARD_ENCRYPTION_128 implicitly sets EncryptionConstants.EMBEDDED_FILES_ONLY as false; @param documentId document id which will be used for encryption  @param version the PdfVersion of the target document for encryption 
   
  
 Class PdfObject, PdfObject setModified() 
  
 
  
 
  
    Sets the 'modified' flag to the indirect object, the flag denotes that the object was modified since the document opening.  
   It is recommended to set 
     This 
   this flag 
     is 
   after 
     meaningful only if 
   changing any PDF 
     the 
   object.  
     PdfDocument 
    
    For example flag is 
      opened 
    used in the append 
      mode 
    mode (see StampingProperties.useAppendMode()).  
    In append mode the whole document is preserved as is, and only changes to the document are appended to the end of the document file. Because of this, only modified objects need to be flushed and are allowed to be flushed (i.e. to be written). @return this PdfObject instance. 
   
  
 Class PdfPage, int getNextMcid() 
  
 
  
 
  
    Calculates and returns the next available for this page's content stream MCID reference. @return calculated MCID reference. @throws PdfException in case of not tagged document. 
   
  
 Class PdfReader, byte[] computeUserPassword() 
  
 
  
 
  
    Computes user password if standard encryption handler is used with Standard40, Standard128 or AES128 encryption algorithm. @return user password, or null if not a standard encryption handler was used or if ownerPasswordUsed wasn't use to open the document. @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, int getCryptoMode() 
  
 
  
 
  
    Gets encryption algorithm and access permissions. @see 
     EncryptionConstants 
   EncryptionConstants @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, long getLastXref() 
  
 
  
 
  
    Gets position of the last Cross-Reference table. @return -1 if Cross-Reference table has rebuilt, otherwise position of the last Cross-Reference table. @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, byte[] getModifiedFileId() 
  
 
  
 
  
    Gets modified file ID, the second element in PdfName.ID key of trailer. If the size of ID array does not equal 2, an empty array will be returned. 
    The returned value reflects the value that was written in opened document. If document is modified, the ultimate document id can be retrieved from PdfDocument.getModifiedDocumentId(). @return byte array represents modified file ID. @see PdfDocument#getModifiedDocumentId() @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, byte[] getOriginalFileId() 
  
 
  
 
  
    Gets original file ID, the first element in PdfName.ID key of trailer. If the size of ID array does not equal 2, an empty array will be returned. 
    The returned value reflects the value that was written in opened document. If document is modified, the ultimate document id can be retrieved from PdfDocument.getOriginalDocumentId(). @return byte array represents original file ID. @see PdfDocument#getOriginalDocumentId() @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, long getPermissions() 
  
 
  
 
  
    Gets the encryption permissions. It can be used directly in WriterProperties.setStandardEncryption(byte[], byte[], int, int). See ISO 32000-1, Table 22 for more details. @return the encryption permissions, an unsigned 32-bit quantity. @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, boolean hasFixedXref() 
  
 
  
 
  
    If any exception generated while reading PdfObject, PdfReader will try to fix offsets of all objects. 
     
    This method's returned value might change over time, because PdfObjects reading can be postponed even up to document closing. @return true, if PdfReader fixed offsets of PdfObjects. @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, boolean hasHybridXref() 
  
 
  
 
  
    Some documents contain hybrid XRef, for more information see "7.5.8.4 Compatibility with Applications That Do Not Support Compressed Reference Streams" in PDF 32000-1:2008 spec. @return true, if the document has hybrid Cross-Reference section. @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, boolean hasRebuiltXref() 
  
 
  
 
  
    If any exception generated while reading XRef section, PdfReader will try to rebuild it. @return true, if PdfReader rebuilt Cross-Reference section. @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, boolean hasXrefStm() 
  
 
  
 
  
    Indicates whether the document has Cross-Reference Streams. @return true, if the document has Cross-Reference Streams. @throws PdfException, if the method has been invoked before the PDF document was read. 
  
 Class PdfReader, boolean isOpenedWithFullPermission() 
  
 
  
 
  
    Checks if the document was opened with the owner password so that the end application can decide what level of access restrictions to apply. If the document is not encrypted it will return {@code true}. @return {@code true} if the document was opened with the owner password or if it's not encrypted, {@code false} if the document was opened with the user password. @throws PdfException, if the method has been invoked before the PDF document was read. 
   
  
 Class WriterProperties, WriterProperties addUAXmpMetadata() 
  
 
  
 
  
    This method marks the document as PDF/UA and sets related flags is XMPMetaData. This method calls .addXmpMetadata() implicitly. NOTE: iText does not validate PDF/UA, which means we don't check if created PDF meets all PDF/UA requirements. Don't use this method if you are not familiar with PDF/UA specification in order to avoid creation of non-conformant PDF/UA file. @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties addXmpMetadata() 
  
 
  
 
  
    If true, default XMPMetadata based on PdfDocumentInfo will be added. For PDF 2.0 documents, metadata will be added in any case. @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties setCompressionLevel(int) 
  
 
  
 
  
    Defines the level of compression for the document. See CompressionConstants @param compressionLevel CompressionConstants value. @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties setFullCompressionMode(boolean) 
  
 
  
 
  
    Defines if full compression mode is enabled. If enabled, not only the content of the pdf document will be compressed, but also the pdf document inner structure. @param fullCompressionMode true - to enable full compression mode, false to disable it @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties setInitialDocumentId(PdfString) 
  
 
  
 
  
    The /ID entry of a document contains an array with two entries. The first one (initial id) represents the initial document id. It's a permanent identifier based on the contents of the file at the time it was originally created and does not change when the file is incrementally updated. To help ensure the uniqueness of file identifiers, it is recommend to be computed by means of a message digest algorithm such as MD5. iText will by default keep the existing initial id. But if you'd like you can set this id yourself using this setter. @param initialDocumentId the new initial document id @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties setModifiedDocumentId(PdfString) 
  
 
  
 
  
    The /ID entry of a document contains an array with two entries. The second one (modified id) should be the same entry, unless the document has been modified. iText will by default generate a modified id. But if you'd like you can set this id yourself using this setter. @param modifiedDocumentId the new modified document id @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties setPdfVersion(PdfVersion) 
  
 
  
 
  
    Defines pdf version for the created document. Default value is PDF_1_7. @param version version for the document. @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties setPublicKeyEncryption(Certificate[], int[], int) 
  
 
  
 
  
    Sets the certificate encryption options for the document. An array of one or more public certificates must be provided together with an array of the same size for the permissions for each certificate. 
    @param certs the public certificates to be used for the encryption @param permissions the user permissions for each of the certificates   The open permissions for the document can be  EncryptionConstants.ALLOW_PRINTING,   EncryptionConstants.ALLOW_MODIFY_CONTENTS,  EncryptionConstants.ALLOW_COPY,   EncryptionConstants.ALLOW_MODIFY_ANNOTATIONS,  EncryptionConstants.ALLOW_FILL_IN,   EncryptionConstants.ALLOW_SCREENREADERS,  EncryptionConstants.ALLOW_ASSEMBLY 
     and 
   and   EncryptionConstants.ALLOW_DEGRADED_PRINTING. 
     The 
    
     permissions 
    
     can 
    
     be 
    
     combined 
    
     by 
    
     ORing 
    
     them. 
    
     @param 
    
     certs 
    
     the 
    
     public 
    
     certificates 
    
     to 
   The permissions can be 
     used for the encryption 
   combined by ORing them  @param 
     permissions 
   encryptionAlgorithm the type of encryption. It can be one 
     the 
   of  
     user 
    
     permissions 
    
     for 
    
     each 
    
     of 
    
     the 
    
     certificates 
    
     @param 
    
     encryptionAlgorithm 
    
     the 
    
     type 
    
     of 
    
     encryption. 
    
     It 
    
     can 
    
     be 
    
     one 
    
     of 
      EncryptionConstants.STANDARD_ENCRYPTION_40, EncryptionConstants.STANDARD_ENCRYPTION_128,   EncryptionConstants.ENCRYPTION_AES_128 or EncryptionConstants.ENCRYPTION_AES_256. Optionally EncryptionConstants.DO_NOT_ENCRYPT_METADATA can be 
     ORed 
   ORed   to output the metadata in 
     cleartext 
   cleartext. EncryptionConstants.EMBEDDED_FILES_ONLY can be ORed as well. Please be aware that the passed encryption types may override permissions:   EncryptionConstants.STANDARD_ENCRYPTION_40 implicitly sets EncryptionConstants.DO_NOT_ENCRYPT_METADATA and EncryptionConstants.EMBEDDED_FILES_ONLY as false; EncryptionConstants.STANDARD_ENCRYPTION_128 implicitly sets EncryptionConstants.EMBEDDED_FILES_ONLY as false; @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties setStandardEncryption(byte[], byte[], int, int) 
  
 
  
 
  
    Sets the encryption options for the document.  
     The 
   @param userPassword 
     and 
    
     the 
    
     ownerPassword 
    
     can 
    the user password. Can be null or 
     have 
   of zero length
     . 
   , 
     In 
   which 
     this 
   is equal to  
     case 
    omitting the 
     ownerPassword is 
   user password  
     replaced 
   @param 
     by 
   ownerPassword the owner password. If it's null or empty, iText will generate   a random string
     . 
    to be used as the owner password @param permissions the user permissions   The open permissions for the document can be  EncryptionConstants.ALLOW_PRINTING,   EncryptionConstants.ALLOW_MODIFY_CONTENTS,  EncryptionConstants.ALLOW_COPY,   EncryptionConstants.ALLOW_MODIFY_ANNOTATIONS,  EncryptionConstants.ALLOW_FILL_IN,   EncryptionConstants.ALLOW_SCREENREADERS,  EncryptionConstants.ALLOW_ASSEMBLY 
     and 
   and   EncryptionConstants.ALLOW_DEGRADED_PRINTING. 
     The 
    
     permissions 
    
     can 
    
     be 
    
     combined 
    
     by 
    
     ORing 
    
     them. 
    
     @param 
    
     userPassword 
    
     the 
    
     user 
    
     password. 
    
     Can 
    
     be 
    
     null 
    
     or 
    
     empty 
    
     @param 
    
     ownerPassword 
    The permissions can be combined by ORing them  @param encryptionAlgorithm the 
     owner 
   type 
     password 
   of encryption. 
     Can 
   It can be 
     null or 
   one of  
     empty 
    
     @param 
    
     permissions 
    
     the 
    
     user 
    
     permissions 
    
     @param 
    
     encryptionAlgorithm 
    
     the 
    
     type 
    
     of 
    
     encryption. 
    
     It 
    
     can 
    
     be 
    
     one 
    
     of 
     EncryptionConstants.STANDARD_ENCRYPTION_40, EncryptionConstants.STANDARD_ENCRYPTION_128,   EncryptionConstants.ENCRYPTION_AES_128 or EncryptionConstants.ENCRYPTION_AES_256. Optionally EncryptionConstants.DO_NOT_ENCRYPT_METADATA can be 
     ORed 
   ORed   to output the metadata in 
     cleartext 
   cleartext. EncryptionConstants.EMBEDDED_FILES_ONLY can be ORed as well. Please be aware that the passed encryption types may override permissions:   EncryptionConstants.STANDARD_ENCRYPTION_40 implicitly sets EncryptionConstants.DO_NOT_ENCRYPT_METADATA and EncryptionConstants.EMBEDDED_FILES_ONLY as false; EncryptionConstants.STANDARD_ENCRYPTION_128 implicitly sets EncryptionConstants.EMBEDDED_FILES_ONLY as false; @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties useDebugMode() 
  
 
  
 
  
    This activates debug mode with pdfDebug tool. It causes additional overhead of duplicating document bytes into memory, so use it careful. NEVER use it in production or in any other cases except pdfDebug. @return this 
     {@code 
   WriterProperties 
     
       } 
      instance 
  
 Class WriterProperties, WriterProperties useSmartMode() 
  
 
  
 
  
    Enables smart mode. 
   
 In smart mode when resources (such as fonts, images,...) are encountered, a reference to these resources is saved in a cache, so that they can be reused. This requires more memory, but reduces the file size of the resulting PDF document. @return this 
     {@code 
   WriterProperties 
     
       } 
      instance