Package com.itextpdf.kernel.pdf

Class WriterProperties

java.lang.Object

com.itextpdf.kernel.pdf.WriterProperties

       public class WriterProperties extends Object
      

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	addUAXmpMetadata
protected boolean	addXmpMetadata
protected int	compressionLevel
protected EncryptionProperties	encryptionProperties
protected PdfString	initialDocumentId	The ID entry that represents the initial identifier.
protected Boolean	isFullCompression	Indicates if to use full compression (using object streams).
protected PdfString	modifiedDocumentId	The ID entry that represents a change in a document.
protected PdfVersion	pdfVersion
protected boolean	smartMode	Indicates if the writer copy objects in a smart mode.

Constructor Summary

Constructors

Constructor	Description
WriterProperties()

Method Summary

Modifier and Type	Method	Description
WriterProperties	addUAXmpMetadata()	This method marks the document as PDF/UA and sets related flags is XMPMetaData.
WriterProperties	addXmpMetadata()	If true, default XMPMetadata based on PdfDocumentInfo will be added.
WriterProperties	setCompressionLevel(int compressionLevel)	Defines the level of compression for the document.
WriterProperties	setFullCompressionMode(boolean fullCompressionMode)	Defines if full compression mode is enabled.
WriterProperties	setInitialDocumentId(PdfString initialDocumentId)	The /ID entry of a document contains an array with two entries.
WriterProperties	setModifiedDocumentId(PdfString modifiedDocumentId)	The /ID entry of a document contains an array with two entries.
WriterProperties	setPdfVersion(PdfVersion version)	Defines pdf version for the created document.
WriterProperties	setPublicKeyEncryption(Certificate[] certs, int[] permissions, int encryptionAlgorithm)	Sets the certificate encryption options for the document.
WriterProperties	setStandardEncryption(byte[] userPassword, byte[] ownerPassword, int permissions, int encryptionAlgorithm)	Sets the encryption options for the document.
WriterProperties	useSmartMode()	Enables smart mode.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

compressionLevel

             protected int compressionLevel
            

isFullCompression

             protected Boolean isFullCompression
            

Indicates if to use full compression (using object streams).

smartMode

             protected boolean smartMode
            

Indicates if the writer copy objects in a smart mode. If so PdfDictionary and PdfStream will be hashed and reused if there's an object with the same content later.

addXmpMetadata

             protected boolean addXmpMetadata
            

addUAXmpMetadata

             protected boolean addUAXmpMetadata
            

pdfVersion

             protected PdfVersion pdfVersion
            

encryptionProperties

             protected EncryptionProperties encryptionProperties
            

initialDocumentId

             protected PdfString initialDocumentId
            

The ID entry that represents the initial identifier.

modifiedDocumentId

             protected PdfString modifiedDocumentId
            

The ID entry that represents a change in a document.

Constructor Details

WriterProperties

             public WriterProperties()
            

Method Details

setPdfVersion

             public WriterProperties setPdfVersion
             (PdfVersion version)
            

Defines pdf version for the created document. Default value is PDF_1_7.

Parameters:

version - version for the document.

Returns:

this WriterProperties instance

useSmartMode

             public 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.

Returns:

this WriterProperties instance

addXmpMetadata

             public WriterProperties addXmpMetadata()
            

If true, default XMPMetadata based on PdfDocumentInfo will be added. For PDF 2.0 documents, metadata will be added in any case.

Returns:

this WriterProperties instance

setCompressionLevel

             public WriterProperties setCompressionLevel
             (int compressionLevel)
            

Defines the level of compression for the document. See CompressionConstants

Parameters:

compressionLevel - CompressionConstants value.

Returns:

this WriterProperties instance

setFullCompressionMode

             public WriterProperties setFullCompressionMode
             (boolean fullCompressionMode)
            

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.

Parameters:

fullCompressionMode - true - to enable full compression mode, false to disable it

Returns:

this WriterProperties instance

setStandardEncryption

             public WriterProperties setStandardEncryption
             (byte[] userPassword, byte[] ownerPassword, int permissions, int encryptionAlgorithm)
            

Sets the encryption options for the document.

Parameters:

userPassword - the user password. Can be null or of zero length, which is equal to omitting the user password

ownerPassword - the owner password. If it's null or empty, iText will generate a random string to be used as the owner password

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 EncryptionConstants.ALLOW_DEGRADED_PRINTING. The permissions can be combined by ORing them

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 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;

Returns:

this WriterProperties instance

setPublicKeyEncryption

             public WriterProperties setPublicKeyEncryption
             (Certificate[] certs, int[] permissions, int encryptionAlgorithm)
            

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.

Parameters:

certs - the public certificates to be used for the encryption

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 EncryptionConstants.ALLOW_DEGRADED_PRINTING. The permissions can be combined by ORing them

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 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;

Returns:

this WriterProperties instance

setInitialDocumentId

             public WriterProperties setInitialDocumentId
             (PdfString initialDocumentId)
            

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.

Parameters:

initialDocumentId - the new initial document id

Returns:

this WriterProperties instance

setModifiedDocumentId

             public WriterProperties setModifiedDocumentId
             (PdfString modifiedDocumentId)
            

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.

Parameters:

modifiedDocumentId - the new modified document id

Returns:

this WriterProperties instance

addUAXmpMetadata

             public 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.

Returns:

this WriterProperties instance