Module security 

PDF Standard Security Handler (R2–R6).

Implements password verification and object/stream decryption per the PDF specification’s Standard Security Handler.

Structs

Permissions

Typed wrapper for the PDF permission bits stored in the /P field of the encrypt dictionary (PDF 1.7 spec, Table 3.20).

SecurityHandler

PDF Standard Security Handler — holds the derived encryption key and methods for decrypting strings and streams.

Enums

CryptFilterMethod

The method used by a crypt filter.

SecurityError

Errors from the security handler.