Attaching a document to a story

It's currently not possible to attach a document to a story. We will be building a storage area for each organisation where documents can be stored online and a link can be added to the story so that recipients can access the document.

In the meantime, the best workaround is to use Google Drive or Dropbox (or other similar cloud storage providers) to upload your document, and create a shareable link, then paste that link into your story. Only recipients of your email will then be able to access your document.