StiPdfEncryptionKeyLength

Enumeration which sets an encryption key length of the resulting pdf file.

Index

Bit128: = 2

RC4 algorithm, 128 bit encryption key length (Acrobat 5).

Bit128_r4: = 3

AES algorithm, 128 bit encryption key length, revision 4 (Acrobat 7).

Bit256_r5: = 4

AES algorithm, 256 bit encryption key length, revision 5 (Acrobat 9).

Bit256_r6: = 5

AES algorithm, 256 bit encryption key length, revision 6 (Acrobat X).

Bit40: = 1

RC4 algorithm, 40 bit encryption key length (Acrobat 3).