Copy files with urls from iphone to mac

I am new to ios develpment.


My app wrote a imag to a url such as

file:///var/mobile/Containers/Data/Application/C37BEE9A-8B02-47F0-9A36-712044113929/Documents/rgb1.jpg


I need copy this image to mac to take a look.


How can I do this copy? Do I need set any thing to get permission for file sharing? In iTurn and my iphone-> file sharing, my app is not listed.


Thanks,


George