(PECL haru >= 0.0.1)
HaruDoc::setPermission — Set permissions for the document
$permission
   )Defines permissions for the document.
permissionThe values is a combination of these flags:
HaruDoc::ENABLE_READ - user can read the
         document.
        HaruDoc::ENABLE_PRINT - user can print the
         document.
        HaruDoc::ENABLE_EDIT_ALL - user can edit the
         contents of the document other than annotations and form fields.
        HaruDoc::ENABLE_COPY -  user can copy the text
         and the graphics of the document.
        HaruDoc::ENABLE_EDIT - user can add or modify
         the annotations and form fields of the document.
        
   Returns TRUE on success.
  
Throws a HaruException on error.