A callback function used to decrypt the encrypted data.
A callback function used to finish the decryption.
brief A callback function used to get the cipher type.
A callback function used to get the estimated decrypted data size.
A callback function used to get the encryption key.
A callback function used to get the current user permissions.
A callback function used to check if current user is the owner of the PDF document.
A callback function used to release the context for encryption and decryption.
A callback function used to decrypt the encrypted data.
A callback function to check if to use standard crypto method or custom crypto method.
A callback function used to create context for encryption and decryption.