PDFHelper - The UWP app on the Windows Store that can help with PDF display problems
Since PDFs are now viewed directly via the Edge engine in the Windows 10 (mobile) browser, it is sometimes difficult to view PDFs on the Internet; you would have to download them first and then display them in one of the dedicated viewer apps, which would not be a problem, but unfortunately Edge for PDF links does not allow you to download them anymore and then it is dry for now, should the Edge crash or can not render it correctly.
This small, simple app needs the direct link to the PDF, which you simply copy into the input field and then create for you a button (or two with different methodes), with which you can download the PDF to the device.
There is not much more to tell... if you want to protect yourself against such problems, you can deal with installing this app... Have fun with it :).