PDFs need a PDF viewer to open. If you don't have that on either device, then they won't be readable. Now if it is your onedrive that is the problem, then you need to contact that companie's support.
PDFs need a PDF viewer to open. If you don't have that on either device, then they won't be readable. Now if it is your onedrive that is the problem, then you need to contact that companie's support.