• Works on any Google Drive file type.
• For best fit on the page, change your margins to zero in Google Doc.
• This code is responsive.
• The scrollbar can be activated by removing "scroll="no".
• Height can be adjusted by pixels. 
• This code can also be used to add a PDF if it is opened as a Google Doc. 

In the Google file/doc click on File  > Share > Publish to Web > Embed