Adobe Acrobat save PDF files to Sharepoint (Online Account)

Question

I do the following:

1. Open PDF document in Adobe Acrobat XI Version 11.0.10
2. File > Save As...
3. Save to Online Account > New Account...
4. Check SharePoint
5. Type in library path example: http://sharepoint/documents
6. Click Continue
7. Click Save

Error: You cannot save to this location. Please choose another folder or document library.

I hope someone could help me, thanks in advance.