# EncryptionType Enum

> Enumeration EncryptionType.

- Product: Adobe PDF Library 21
- Language: Java
- Version: APDFL21.0.0PlusP1f
- HTML page: https://docs.datalogics.com/apdfl21/Java/APDFL21.0.0PlusP1f/enum/EncryptionType
- Version index: https://docs.datalogics.com/apdfl21/Java/APDFL21.0.0PlusP1f/llms.txt

**Namespace:** `com::datalogics::PDFL`

## Values

- `AES_256`: Encrypt the document using 256-bit AES encryption for Acrobat 9 or earlier.
- `AES_256_ACRO_X`: Encrypt the document using 256-bit AES encryption for Acrobat 10 or later.
- `RC_4_128`: Encrypt the document using 128-bit RC4 encryption for Acrobat 5 or later.
- `RC_4_40`: Encrypt the document using 40-bit RC4 encryption for Acrobat 5 or later.
- `STANDARD`: Reuse the document's current encryption settings, or use the standard 128-bit encryption.