We imported a log with PDF entries only and the only report that showed metrics for this was the (Actions > Downloads) Downloads report. Are static files, e.g., PDF, XLS, TXT etc., counted ONLY as downloads and NOT PageViews in Piwik? Does Piwik have a report the includes PageViews for static files?
Download Report: In this report, you can see which files your visitors have downloaded.
What Piwik counts as a download is the click on a download link. Whether the download was completed or not isn’t known to Piwik.