PDF on Web Viewer (screen size issue)

Hi!! I am still having issues about the PDF. I put the web viewer component inside of a row (the row is % of the screen and the web viewer is fill container). The web viewer is showing the PDF, but the size isnt right depending on the screen.

Could someone help me?

I published my web app and on the computer it works:

When I open my web app on IOS phone, it explodes from the screen:

And when I open my web app on Android phone, it shows this:

I want everything like the first picture (one PDF with multiple pages)

Thank you