I can download and view a PDF on my phone, but the "share" is not there. I can "send file, open with, print, report an issue" I am trying to share certain files via facebook to share information.
Researching a bit, uploading and sharing a PDF directly on Facebook is not standard. You can upload to other storage (One Drive, DropBox, Google Docs, etc) and share the link, or convert it to jpg and share the photo.
How would your convert to a JPEG via your phone.
There's probably an app for that....pdf to jpg converter - Android Apps on Google Play
