Add padding/margin at a image!

ImageInsets.swift

import UIKit

extension UIImage {
  func imageWithInsets(insetDimen: CGFloat) -> UIImage {
    return imageWithInset(UIEdgeInsets(top: insetDimen, left: insetDimen, bottom: insetDimen, right: insetDimen))
  }
  
  func imageWithInset(insets: UIEdgeInsets) -> UIImage {
    UIGraphicsBeginImageContextWithOptions(
      CGSizeMake(self.size.width + insets.left + insets.right,
        self.size.height + insets.top + insets.bottom), false, self.scale)
    let origin = CGPoint(x: insets.left, y: insets.top)
    self.drawAtPoint(origin)
    let imageWithInsets = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()
    return imageWithInsets
  }
  
}