org.apache.fop.pdf

Interface PDFEncryption

All Known Implementing Classes:

PDFEncryptionJCE

public interface PDFEncryption

This interface defines the contract for classes implementing PDF encryption.

Method Summary

Modifier and Type	Method and Description
void	applyFilter(AbstractPDFStream stream) Adds a PDFFilter to the PDFStream object
byte[]	encrypt(byte[] data, PDFObject refObj) Encrypt an array of bytes using a reference PDFObject for calculating the encryption key.
Version	getPDFVersion() Returns the PDF version required by the current encryption algorithm.
String	getTrailerEntry() Returns the /Encrypt entry in the file trailer dictionary.

Method Detail

applyFilter

void applyFilter(AbstractPDFStream stream)

Adds a PDFFilter to the PDFStream object

Parameters:

stream - the stream to add an encryption filter to

encrypt

byte[] encrypt(byte[] data,
               PDFObject refObj)

Encrypt an array of bytes using a reference PDFObject for calculating the encryption key.

Parameters:

data - data to encrypt

refObj - reference PDFObject

Returns:

byte[] the encrypted data

getTrailerEntry

String getTrailerEntry()

Returns the /Encrypt entry in the file trailer dictionary.

Returns:

the string "/Encrypt n g R\n" where n and g are the number and generation of the document's encryption dictionary

getPDFVersion

Version getPDFVersion()

Returns the PDF version required by the current encryption algorithm.

Returns:

the PDF Version