page control ui.pln is a Page Control UI
belonging to Page Control UI Plug-In for Adobe InDesign
from DTP Tools
Non-system processes like page control ui.pln originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.