the pdf is not opening completely on mobile, wether you use iPhone (5s) or an Android.
It is opening partly.
It does not help choosing native/google or pdfjs.
On windows it works ok with all browsers and the pdf is completely opening.
Using latest Joomla, up to date and latest pdf embed 2.1.5
***edit*** I just installed Chrome too on Iphone 5S, it only opens 1/4th of page. Sizes are correct as on windows the full page opens. Test Safari, chrome and firefox, and according your browser table Chrome should work when viewer google is choosen.
thanks for your help.