- Solder paste
- Solder stop
- Test points
- Thermal Pads
- Oblong hole
- Soldering pad having different auras upon different layers
- Two pads leading one signal
You see the number of used Pins/Pads in the status bar (foot line):
Through holes (vias) and mounting holes are not counted if they are circular and have a drill hole. Through holes whose height is unequal to their width and whose shape is rectangular, octagonal, polygonal or otherwise non-circular are counted as pads. Vias that do not have a hole are counted as pads as well, even if they are circular.
Alternatively have a look in Menu Help:
Besides - Information on the status of your project version, a project logbook or other text elements, e. g. a to-do-list can be added to any project by this Info dialog...
Vias and mounting holes do not count as used pads.