Package com.itextpdf.kernel.pdf

Class PdfEncryptor

java.lang.Object

com.itextpdf.kernel.pdf.PdfEncryptor

public final class PdfEncryptor
extends java.lang.Object

This class takes any PDF and returns exactly the same but encrypted. All the content, links, outlines, etc, are kept. It is also possible to change the info dictionary.

Field Summary

Fields

Modifier and Type	Field	Description
private static IBouncyCastleFactory	BOUNCY_CASTLE_FACTORY
private IMetaInfo	metaInfo
private EncryptionProperties	properties

Constructor Summary

Constructors

Constructor	Description
PdfEncryptor()

Method Summary

Modifier and Type	Method	Description
void	encrypt(PdfReader reader, java.io.OutputStream os)	Entry point to encrypt a PDF document.
static void	encrypt(PdfReader reader, java.io.OutputStream os, EncryptionProperties properties)	Entry point to encrypt a PDF document.
static void	encrypt(PdfReader reader, java.io.OutputStream os, EncryptionProperties properties, java.util.Map<java.lang.String,java.lang.String> newInfo)	Entry point to encrypt a PDF document.
void	encrypt(PdfReader reader, java.io.OutputStream os, java.util.Map<java.lang.String,java.lang.String> newInfo)	Entry point to encrypt a PDF document.
static byte[]	getContent(IRecipientInformation recipientInfo, java.security.PrivateKey certificateKey, java.lang.String certificateKeyProvider)	Gets the content from a recipient.
static java.lang.String	getPermissionsVerbose(int permissions)	Give you a verbose analysis of the permissions.
static boolean	isAssemblyAllowed(int permissions)	Tells you if document assembly is allowed.
static boolean	isCopyAllowed(int permissions)	Tells you if copying is allowed.
static boolean	isDegradedPrintingAllowed(int permissions)	Tells you if degraded printing is allowed.
static boolean	isFillInAllowed(int permissions)	Tells you if filling in fields is allowed.
static boolean	isModifyAnnotationsAllowed(int permissions)	Tells you if modifying annotations is allowed.
static boolean	isModifyContentsAllowed(int permissions)	Tells you if modifying content is allowed.
static boolean	isPrintingAllowed(int permissions)	Tells you if printing is allowed.
static boolean	isScreenReadersAllowed(int permissions)	Tells you if repurposing for screenreaders is allowed.
PdfEncryptor	setEncryptionProperties(EncryptionProperties properties)	Sets the EncryptionProperties
PdfEncryptor	setEventCountingMetaInfo(IMetaInfo metaInfo)	Sets the IMetaInfo that will be used during PdfDocument creation.

Methods inherited from class java.lang.Object

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

Field Detail

BOUNCY_CASTLE_FACTORY

private static final IBouncyCastleFactory BOUNCY_CASTLE_FACTORY

metaInfo

private IMetaInfo metaInfo

properties

private EncryptionProperties properties

Constructor Detail

PdfEncryptor

public PdfEncryptor()

Method Detail

encrypt

public static void encrypt(PdfReader reader,
                           java.io.OutputStream os,
                           EncryptionProperties properties,
                           java.util.Map<java.lang.String,java.lang.String> newInfo)

Entry point to encrypt a PDF document.

Parameters:

reader - the read PDF

os - the output destination

properties - encryption properties. See EncryptionProperties.

newInfo - an optional String map to add or change the info dictionary. Entries with null values delete the key in the original info dictionary

encrypt

public static void encrypt(PdfReader reader,
                           java.io.OutputStream os,
                           EncryptionProperties properties)

Entry point to encrypt a PDF document.

Parameters:

reader - the read PDF

os - the output destination

properties - encryption properties. See EncryptionProperties.

getPermissionsVerbose

public static java.lang.String getPermissionsVerbose(int permissions)

Give you a verbose analysis of the permissions.

Parameters:

permissions - the permissions value of a PDF file

Returns:

a String that explains the meaning of the permissions value

isPrintingAllowed

public static boolean isPrintingAllowed(int permissions)

Tells you if printing is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if printing is allowed

isModifyContentsAllowed

public static boolean isModifyContentsAllowed(int permissions)

Tells you if modifying content is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if modifying content is allowed

isCopyAllowed

public static boolean isCopyAllowed(int permissions)

Tells you if copying is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if copying is allowed

isModifyAnnotationsAllowed

public static boolean isModifyAnnotationsAllowed(int permissions)

Tells you if modifying annotations is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if modifying annotations is allowed

isFillInAllowed

public static boolean isFillInAllowed(int permissions)

Tells you if filling in fields is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if filling in fields is allowed

isScreenReadersAllowed

public static boolean isScreenReadersAllowed(int permissions)

Tells you if repurposing for screenreaders is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if repurposing for screenreaders is allowed

isAssemblyAllowed

public static boolean isAssemblyAllowed(int permissions)

Tells you if document assembly is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if document assembly is allowed

isDegradedPrintingAllowed

public static boolean isDegradedPrintingAllowed(int permissions)

Tells you if degraded printing is allowed.

Parameters:

permissions - the permissions value of a PDF file

Returns:

true if degraded printing is allowed

getContent

public static byte[] getContent(IRecipientInformation recipientInfo,
                                java.security.PrivateKey certificateKey,
                                java.lang.String certificateKeyProvider)
                         throws AbstractCMSException

Gets the content from a recipient.

Parameters:

recipientInfo - recipient information

certificateKey - private certificate key

certificateKeyProvider - the name of the certificate key provider

Returns:

content from a recipient info

Throws:

AbstractCMSException - if the content cannot be recovered.

setEventCountingMetaInfo

public PdfEncryptor setEventCountingMetaInfo(IMetaInfo metaInfo)

Sets the IMetaInfo that will be used during PdfDocument creation.

Parameters:

metaInfo - meta info to set

Returns:

this PdfEncryptor instance

setEncryptionProperties

public PdfEncryptor setEncryptionProperties(EncryptionProperties properties)

Sets the EncryptionProperties

Parameters:

properties - the properties to set

Returns:

this PdfEncryptor instance

encrypt

public void encrypt(PdfReader reader,
                    java.io.OutputStream os,
                    java.util.Map<java.lang.String,java.lang.String> newInfo)

Entry point to encrypt a PDF document.

Parameters:

reader - the read PDF

os - the output destination

newInfo - an optional String map to add or change the info dictionary. Entries with null values delete the key in the original info dictionary

encrypt

public void encrypt(PdfReader reader,
                    java.io.OutputStream os)

Entry point to encrypt a PDF document.

Parameters:

reader - the read PDF

os - the output destination