From Edge click on the 3 dots in the top right corner of the screen
Select Downloads on the left side of the screen
Make sure “Ask me what to do with each Download” is selected
Then select “Cookies and site permissions” from the left side
Scroll down until you see “PDF Documents” and click the arrow
Make sure both options are selected
Once the PDF has been opened, select the downloads arrow in the top right corner, right click on the file and select Always open with system viewer.
