| Class | Description |
|---|---|
| PDFAesSecurityHandler | Defines a PDF security handler that uses AES encryption. |
| PDFFileEncryptionInfo | Defines information about encrypted PDF files |
| PDFNoCryptSecurityHandler | Defines a security handler that does not encrypt the data. This class supports the internal library infrastructure and should not be used by external client code. |
| PDFRc4SecurityHandler | Defines a PDF security handler that uses RC4 encryption. |
| PDFSecurityHandler | efines an abstract PDF security handler. |
| PDFStandardSecurityHandler | Defines a base class for standard PDF security handlers. |