If I take a photo on my iPhone, how do I get it developed to give someone in a frame?

[YoungBritishPissArtist]

In my local ASDA, they have a photo counter, I can get it done there right? Will the quality be good if I use Instagram?

TIA

Yes. ASDA or Boots would be the main places I'd suggest. Quality will be lower if you use Instagram but should be ok-ish. Better off doing any image processing in Photoshop if you can rather than apps which apply a whole load of adjustments you don't need.

Pedro, sorry for delay - thank you!

I've taken the photo, am tinkering around on photoshop now

Not all the self service machines can connect to iPhone, and you can't Bluetooth. The ones in Boots have a cable to connect apple devices def for all phones up to and including 4s but I am not sure if they have the smaller one for 5 onwards.