change size of pdfview frame

Hello, I use pdf embed in Joomla 4 articles.That works fine. As for the formula to show the pdf I use: {pdf=Filepathe and filename|95%|100%|native}.
I also tried for the size: 95%|1500 but the actual frame wich contains the pdf does not get bigger in hight. What must I do to get the pdf showing in A4-size?
Hope to get a solution from one of you.
Geert, Holland