com.itextpdf.kernel.pdf

Class EncryptionProperties

java.lang.Object

com.itextpdf.kernel.pdf.EncryptionProperties

public class EncryptionProperties
extends Object

Allows configuration of output PDF encryption.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	encryptionAlgorithm
protected byte[]	ownerPassword
protected Certificate[]	publicCertificates
protected int[]	publicKeyEncryptPermissions
protected int	standardEncryptPermissions
protected byte[]	userPassword

Constructor Summary

Constructors

Constructor and Description
EncryptionProperties()

Method Summary

Modifier and Type	Method and Description
EncryptionProperties	setPublicKeyEncryption(Certificate[] certs, int[] permissions, int encryptionAlgorithm) Sets the certificate encryption options for the document.
EncryptionProperties	setStandardEncryption(byte[] userPassword, byte[] ownerPassword, int permissions, int encryptionAlgorithm) Sets the encryption options for the document.

Methods inherited from class java.lang.Object

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

Field Detail

encryptionAlgorithm

protected int encryptionAlgorithm

userPassword

protected byte[] userPassword

ownerPassword

protected byte[] ownerPassword

standardEncryptPermissions

protected int standardEncryptPermissions

publicCertificates

protected Certificate[] publicCertificates

publicKeyEncryptPermissions

protected int[] publicKeyEncryptPermissions

Constructor Detail

EncryptionProperties

public EncryptionProperties()

Method Detail

setStandardEncryption

public EncryptionProperties 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 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;

Returns:

this EncryptionProperties

setPublicKeyEncryption

public EncryptionProperties 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 EncryptionProperties