Doesnt print full photoes

Parts of my images always get cut off. There is no option to scale or edit my image it self so it fits within the print box.... I can only pick paper sizes but that doesnt change the image in the preview box. Please fix... There is no point in keeping the app or printer if all my images are cut off.
The app also has stopped connecting with the printer. I have tried over and over but still nothing. I have also deleted and downloaded again the app can nothing. Now it cant even find the printer.

Trsjames about Canon PRINT, v2.2.0