class SetaPDF_Encryptor extends SetaPDF {
mixed updateCache ( void ) }
(DEPRECATED) This method creates a cache file for the PDF file sent to the factory method. It can be used to create the cache file beforehand or to update the cached version manually.
The call of this method presupposes that setUseCache(true) is activated prior to this method call.
True - if everything works as expected - an SetaPDF_Error object if an error occurs.