PDFEncryptionAlgorithmEnum

PDFEncryptionAlgorithmEnum enumeration constants are used to specify the encryption algorithm for exported PDF files.

typedef enum {
  PDFEA_RC4
  PDFEA_AES128
  PDFEA_AES256
} PDFEncryptionAlgorithmEnum;

Elements

Name	Description
PDFEA\_RC4	RC4 encryption supported for PDF version 1.3 (40-bit key only) and PDF version 1.4 or above (longer keys up to 128 bit). Key length is set using the PDFEncryptionInfo::KeyLength property.
PDFEA\_AES128	128-bit AES encryption supported for PDF version 1.6 and above.
PDFEA\_AES256	256-bit AES encryption supported for PDF version 1.7 and above.