That wouldn’t really be then a pdf preview and is then more like a eg: full open reader window.
Can you not just open the pdf with your default reader if you need to see it larger than the preview?
For this reason, we are not promoting this email client to our users
Seems a bit rough that you wouldn’t promote eM Client to your users just due to just this reason.
Ps All my friends who used Outlook for business for years, are now using eM Client and are happy with the new V10 pdf preview window size as in @Gary example window below from the following thread.
