EXIF data not being saved in PNG file

Good morning,

I successfully have comfyUI setup through the API at my website. (https://AiImageCentral.com)
Thank you for your help.
I found a further issue. all the other interface save the EXIF data to the UserComment field
It seems that atleast going through the API this does not happen. Also there is no option to save the data to a txt file
Unless I am missing something? Again, I need the EXIF data in the .PNG going through the API.

Thanks again for your help.

Regards,

jdc4429