How do I save a PDF attachment from an email?

[JARHTMD]

I received an email with a PDF attachment. How do I save the attachment on my Samsung Odyssey phone?

 

[tale 85]

Please don't quote me on this. But try this. There's a way to save e-mails to OneNote. Try to go to OneNote.com and look for "other related apps"
I found it on the OneNote app for W10M. You simply fed your email to me@onenote.com, but you have to set it up online and it sync's with both my phones. One's still on 8.1.