PDFDocument.SetEncryptionMode Method (console safe)

Sets the encryption mode.

SetEncryptionMode(
   mode as PDFDocument.EncryptModeEnum,
   keyLength as Integer)

Parameters

mode

The encryption mode to set.

keyLength

Specify the byte length of encryption key. Only valid for PDFDocument.EncryptionModeEnum.ENCRYPT_R3. Between 5 (40 bits) and 16 (128 bits) can be specified.

Remarks

As the side effect, ups the version of PDF to 1.4 when the mode is set to PDFDocument.EncryptionModeEnum.ENCRYPT_R3.


PDFDocument.EncryptionModeEnum.ENCRYPT_R2 - Use Revision 2 algorithm. keyLength automatically set to 5 (40 bits).
PDFDocument.EncryptionModeEnum.ENCRYPT_R3 - Use Revision 3 algorithm. keyLength can be 5 (40 bits) to 16 (128bits).

See Also

PDFDocument Class