To share a PDF from the Google Docs list

from Google Docs Help To share a PDF from the Docs list, follow these steps: Select the PDF you want to share and click the Share button. Enter the email addresses of the people that you'd like to add. Choose "as Collaborators" or "as Viewers" from the drop-down list. Add a message and click Send Invitation. Even if you've previously shared the document with the people to be notified, they'll still receive the invitation you send. A few things to keep in mind: You can only share PDFs from the Docs list, not the PDF itself. It's not possible to share PDFs with mailing lists or publish a PDF so that anyone can view it. If you share a PDF with someone, that person needs to have a Google Account to access it.