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# Index

## Classes

| Name | Description
--- | --- | ---
| PDFAesSecurityHandler | Defines a PDF security handler that uses AES encryption.
| PDFRc4SecurityHandler | Defines a PDF security handler that uses RC4 encryption.
| PDFSecurityHandler | Defines an abstract PDF security handlers.
| PDFStandardSecurityHandler | Defines a base class for standard PDF security handlers.

## Enums

| Name | Description
--- | --- | ---
| PDFEncryptionAlgorithm | The supported PDF encryption algorithms.