I'm designing a list of documents, and basically the user can download the meeting schedule in their device so they don't have to download it every time and they can view it even without internet connection. The problem is how to indicate effectively that the document is already downloaded.
I tried the above where I indicate the documents already downloaded with no icon, and those that haven't been downloaded yet with a download icon. I have 5 users tested it and neither one of them have any idea what the icon means, thus a failed UX.
Aside from using a variety of icons, is there another approach I can use to indicate that the document has already been downloaded?
Update: More information
Meeting has corresponding documents attached to it. PDF's usually where it can range from about 50kb to 20mb in size.
View Details link will go to a "View" screen displaying the meta info only of the schedule; the documents will not be downloaded yet.