note 97678 added to function.imagepng

I have read in this forum and i have try for days to find a good way to compress my .png All my photo come from CSS and is there some way that i can compress all photo on the site and not like one by one? ---- Server IP: 69.147.83.197 Probable Submitter: 77.208.118.151 ---- Manual Page -- http://www.php.net/manual/en/function.imagepng.php Edit -- https://master.php.net/note/edit/97678 Del: integrated -- https://master.php.net/note/delete/97678/integrated Del: useless -- https://master.php.net/note/delete/97678/useless Del: bad code -- https://master.php.net/note/delete/97678/bad+code Del: spam -- https://master.php.net/note/delete/97678/spam Del: non-english -- https://master.php.net/note/delete/97678/non-english Del: in docs -- https://master.php.net/note/delete/97678/in+docs Del: other reasons-- https://master.php.net/note/delete/97678 Reject -- https://master.php.net/note/reject/97678 Search -- https://master.php.net/manage/user-notes.php