Open PDF file in ionic native app ( ios and android) PLS HELP ME

hi,
I want to know how can i display a pdf file in a ionic native app( ios and android).
pls help me it is an emergency

i am using this tag
<embed ng-src="{{urlPdf}}" >

but it is working only in browser

This Might help
https://forum.ionicframework.com/t/how-to-open-external-pdf-url-in-app/14143