TdxPDFEncryptionAlgorithmType Enum
Enumerates types of algorithms used to encrypt PDF documents.
#Declaration
TdxPDFEncryptionAlgorithmType = (
eatRC40Bit,
eatRC128Bit,
eatAES
);
#Members
Name | Description |
---|---|
eat
|
The Rivest Cipher 4 (RC4) algorithm with a 40-bit key. Limits the number of functional user access flags. |
eat
|
The Rivest Cipher 4 (RC4) algorithm with a 128-bit key. This is a recommended option. |
eat
|
The Advanced Encryption Standard (AES) algorithm. Not available for document save operations. |
#Remarks
Options include:
Value | Description |
---|---|
eat | The Rivest Cipher 4 (RC4) algorithm with a 40-bit key. This encryption algorithm reduces the number of functional user access permission flags:
|
eat | The Rivest Cipher 4 (RC4) algorithm with a 128-bit key. This is the recommended option for PDF document encryption. |
eat | The Advanced Encryption Standard (AES) algorithm. The current implementation of the PDF document container can load documents encrypted with this algorithm but cannot use AES to encrypt saved documents. A PDF document’s Save |
A PDF document’s SecurityOptions.Algorithm property references the TdxPDFEncryptionAlgorithmType type.