AC not cooling

My car's AC not cooling even though I have added some Freon. System hold pressure, thus there is no leak, and I can hear the relay clicks to start the compressor but there is moderate cool air blows. There is no noise or grinding from compressor. It is very quiet.

I have read all your responses about AC not cooling and compressor seizing problems. However, the compressor is very quiet and can see that it is turning (belt not slipping over compressor). In addition, I have checked the AC diode, fuses and what not. All okay.

Do you still believe that the compressors is the problem? I do not want to spend money and time to figure out something else could be the problem.

I appreciate your response.

Thanks,

AB