Package com.pd4ml.pdf.cos.security

Class PdfEncryptor

java.lang.Object

com.pd4ml.pdf.cos.security.PdfEncryptor

public final class PdfEncryptor
extends java.lang.Object

Encrypts an in-memory COSDocument for output, using the PDF Standard security handler -- the write-side counterpart of StandardSecurityHandler (a reader, which deliberately doesn't expose a forward/encrypting direction). Lives in this package to reuse the package-private RC4/AES/LegacyKeyDerivation/ AES256KeyDerivation primitives, the same way the test suite's EncryptedPdfSampleBuilder does -- this class generalizes that same math to walk an arbitrary already-built document's whole object graph instead of a fixed tiny fixture.

Call this on a fully-built, still-plaintext COSDocument (e.g. a com.pd4ml.pdf.merge merge target) after all content is in place but before handing it to a writer -- every string and stream reachable from the document's indirect objects is encrypted in place, and a fresh /Encrypt dictionary plus /ID are registered on the document.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PdfEncryptor.Algorithm
static class	PdfEncryptor.Options

Method Summary

Modifier and Type	Method	Description
static void	encrypt(COSDocument document, PdfEncryptor.Options options)

Methods inherited from class java.lang.Object

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

Method Detail

encrypt

public static void encrypt(COSDocument document,
                           PdfEncryptor.Options options)
                    throws COSSecurityException

Throws:

COSSecurityException