Track downloaded PDF file
Can I track when someone opens my PDF file when it has been downloaded. I know that some softwares allow tracking when, the IP address, the time spent in each page... but this is when the file is opened in their viewer. Is there a DRM software, cookie, script (JavaScript) or any other mean to track when a PDF which has been downloaded to a local computer has been opened later on by the downloader? The files are opened in a normal PDF viewer like Adobe or Microsoft Edge and don't require a password. Given two scenarios, first, the user is connected to the internet, wifi, and the user is not connected.
