If you don't want to add someone to your document as a collaborator and just want to show them the document, you can share with them the link to the document. If the article is public, just send them the link and allow them to comment on it via the commenting feature. If the article is private you can create a secret, private URL and share it with them.
Finally, if you would like to add a coauthor without inviting them to collaborate or join Authorea, click on the Manage button below the author list and add them as Proxy Author.
Published on: 12 / 12 / 2017