uiwebview - IOS print pdf in A4 Format -

i'm trying print pdf uiwebview, output pdf not fill a4 format. why? how resolve that?

any appreciated =)

if found solution avoid printing form iuwebview . directly download pdf in nsdata format.

_data represente nsdata download request.

 if (_data) {     uiprintinteractioncontroller *printcontroller = [uiprintinteractioncontroller sharedprintcontroller];      printcontroller.delegate = self;      uiprintinfo *printinfo = [uiprintinfo printinfo];     printinfo.outputtype = uiprintinfooutputgeneral;     //printinfo.jobname = [path lastpathcomponent];     printinfo.duplex = uiprintinfoduplexlongedge;     printcontroller.printinfo = printinfo;     printcontroller.showspagerange = yes;     printcontroller.printingitem = _data;      void (^completionhandler)(uiprintinteractioncontroller *, bool, nserror *) = ^(uiprintinteractioncontroller *printcontroller, bool completed, nserror *error) {         if (!completed && error) {             nslog(@"failed! due error in domain %@ error code %lu", error.domain, (long)error.code);         }     };      [printcontroller presentanimated:yes completionhandler:completionhandler]; }