Class DocumentEncryption

public DocumentEncryption(COSDocument doc)

Constructor.

Parameters:

doc - The document to decrypt.

public DocumentEncryption(PDDocument doc)

Constructor.

Parameters:

doc - The document to decrypt.

public void decrypt(Object obj,
                    long objNum,
                    long genNum)
            throws CryptographyException,
                   IOException

This will dispatch to the correct method.

Parameters:

obj - The object to decrypt.

objNum - The object number.

genNum - The object generation Number.

Throws:

CryptographyException - If there is an error decrypting the stream.

public void decryptDocument(String password)
            throws CryptographyException,
                   IOException,
                   InvalidPasswordException

This will decrypt the document.

Parameters:

password - The password for the document.

Throws:

InvalidPasswordException - If the password is not a user or owner password.

public void initForEncryption()
            throws CryptographyException,
                   IOException

This will encrypt the given document, given the owner password and user password. The encryption method used is the standard filter.

Throws:

CryptographyException - If an error occurs during encryption.