Then, right-click on Edge > New > DWORD (32-bit) Value and set the name as AlwaysOpenPdfExternally. By default, it comes with a Value data of 0. If you want to prevent Edge from opening PDF files ...

Alternatively, you can drag the PDF file and drop it in a web browser window such as Chrome or Edge and open it there. Lastly, you can use the specific PDF reader's "File" menu and locate the ...