I am able to link documents to tasks by copying an Evernote link into a task's note field. It would be better to have this directly contained in the task. Ironically, attach a file is available in this suggested topics input screen.
This is a needed feature.
I think I've figured out a temporary "work around". I'm placing the document(s) I want to "attach" in Dropbox then copy/pasting the link URL into the comments or notes. It's not the best but at least it allows users on a shared task to be able to retrieve and look at a document related to the task.
Yes, it's a bit clumsy but it at least lets me share the documents.
I'd settle for the note link working on the web and Android
This product really needs the ability to attach/share documents on tasks.