(How) Can I put an attachement on the dashboard?

Hi,

Can anybody tell me if it is possible to put an attachement on the dashboard?
I'm not thinking about an url but about a pdf or a image or another document?

I need to share a document with the team (in pdf) so I want them to find it quickly, with one or 2 clicks, on the dashboard. I cannot attach it as a link to a certain work item, because it is about all the work items.

Is this possible and how can I do it?

thank you in advance,
Kirsten