How to get UIImage from local url and post the image to server ?

how to get UIImage from local url and post the image to server ? My url is below: file:///Users/macmini/Library/Developer/CoreSimulator/Devices/89104EAC-5BE1-4BEC-BE8E-7B8FFBF9CBD2/data/Media/DCIM/100APPLE/IMG_0005.JPG and how to reduce size of this image < UIImage: 0x7b8d6170>, {3000, 2002} Thank you in advance..