com.itextpdf.kernel.pdf

Class PdfEncryptor

java.lang.Object

com.itextpdf.kernel.pdf.PdfEncryptor

public final class PdfEncryptor
extends 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.

Method Summary

Modifier and Type	Method and Description
static void	encrypt(PdfReader reader, OutputStream os, EncryptionProperties properties) Entry point to encrypt a PDF document.
static void	encrypt(PdfReader reader, OutputStream os, EncryptionProperties properties, Map<String,String> newInfo) Entry point to encrypt a PDF document.
static byte[]	getContent(org.bouncycastle.cms.RecipientInformation recipientInfo, PrivateKey certificateKey, String certificateKeyProvider) Gets the content from a recipient.
static 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.

Methods inherited from class java.lang.Object

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

Method Detail

encrypt

public static void encrypt(PdfReader reader,
                           OutputStream os,
                           EncryptionProperties properties,
                           Map<String,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,
                           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 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(org.bouncycastle.cms.RecipientInformation recipientInfo,
                                PrivateKey certificateKey,
                                String certificateKeyProvider)
                         throws org.bouncycastle.cms.CMSException

Gets the content from a recipient.

Throws:

org.bouncycastle.cms.CMSException