Embedding files from OneDrive

Site URL: https://www.welcomingthestranger.org/2020fallappeal

I am embedding a PDF from OneDrive (Google Docs screws up the document format). Everything works, but the document is displayed in the embedded Office Application (Word) with a zoom level of 75%. There is a menu that users can use to change this, and the 50% level would be ideal as the entire document is displayed.

There are other menu items for downloading the document or displaying it in full screen, so this is not the end of the world, but I would like to know if there is a way to specify the zoom level, since it will be a better experience for the users.