On many websites, you want to track when visitors download your brochure, a photo, a software, etc. Piwik automatically track these clicks as Downloads, and reports them under Actions > Downloads. Piwik will automatically detect a download as a click on a link that ends with one of the following file extensions: 7z, aac, arc, arj, asf, asx, avi, bin, bz, bz2, csv, deb, dmg, doc, exe, flv, gif, gz, gzip, hqx, jar, jpg, jpeg, js, mp2, mp3, mp4, mpg, mpeg, mov, movie, msi, msp, odb, odf, odg, odp, ods, odt, ogg, ogv, pdf, phps, png, ppt, qt, qtm, ra, ram, rar, rpm, sea, sit, tar, tbz, tbz2, tgz, torrent, txt, wav, wma, wmv, wpd, xls, xml, z, zip. You can also force Piwik to count a click as a download by using a specific CSS class for this link. Check out the section “Force a click on a link to be recorded as a download in Piwik” in the Javascript tagging Guide.