When I get an email with attachments, I can't seem to find away to be able to place them directly into my document folders in Zoho

If it is  an editable document like a MS Word document,  I can view it Zoho writer or download it to my PC.

If it is non-editable attachment such as a pdf file, I can only download it.

In both cases I have to download to my PC and then upload into my document folders.

Am I missing something here, or is that the way it works?

Any suggestions would be appreciated

David