GMail with Google Words

[Rapid1898]

I have 2 questions about using GMail with Google Words -

1st
I would like to transfer more than one document (mostly PDFs) to Google Words. So i use the feature to send many documents (up to 10) to the E-Mail-Adress "name+name-number-Bx7whz6b@prod.writely.com". Everything works fine an soon i can see the documents in Google Text. BUT the documents aren´t displayed as PDF-Files - only as (empty) text-documents...
When i am using the normal upload with 1 file in google words everything works fine with pdf-files... Are there some problem with the mail-transfer with the pfd-files?

2nd
When i am receiving a mail with an attachment - is it possible to store des attachment directly to Google words? I havent found a button or feature yet...