Trecking of downloads by using a deeplink


we have a lot of documents on our websites. Tracking of downloads within our websites works. In many cases a user copies the deep link to an document, put this to and email and an other user open the document directly without visiting our webpage. We would like to track also those downloads. How can I handle this?

Many thanks in advance

Hi Stephan,
Would you mind create an issue in our tracker at: Issues · piwik/piwik · GitHub as this is an important request and it would be good to document this in a FAQ.