Defines encryption mode for the document. The encryption mode cannot be set
before setting the password.
Parameters
- mode
-
The encryption mode to use. Can be one of the following:
HaruDoc::ENCRYPT_R2 - use "revision2"
algorithm.
|
HaruDoc::ENCRYPT_R3 - use "revision3"
algorithm. Using this value bumps the version of PDF to 1.4.
|
- key_len
The encryption key length in bytes. This parameter is optional and used only
when mode is HaruDoc::ENCRYPT_R3
. The default
value is 5 (40bit).
Return Values
Returns TRUE
on success.
Errors/Exceptions
Throws HaruException
on error.