I tried and it shared a link. But I want to share the file directly...
"Can not export file with PDF to email" - Are you trying to share a PDF document via email?
1. Open the PDF document that you want to share.
2. Tap the Share icon in the top bar.
3. Tap "Share a Copy" at the bottom.
4. Select a mail app of your choice: Apple Mail, Gmail, etc.
Sign-in is not required to share a copy of the PDF document.
Hope this helps. Please let us know if you meant something else.