Two things I wish would disappear off the face of the Earth sooner than later.
- Adobe Flash.
- Adobe Reader.
In recent years they've turned into bloated bugware.
I wouldn't be surprised if his system cannot load the 217Mb document.
If possible try breaking down the large document into many smaller documents, i.e by chapter. Also use a usb key rather than personally burnt CD as it has far less compatibility issues. Finally, e-sign the PDF document(s) to be able to check it hasn't been edited without your consent.