UIImage+shadow.m

@interface UIImage (shadow)

+ (UIImage *) imageWithContentsOfFile:(NSString *)path withShadow:(BOOL)shadow;

@end

@implementation UIImage (shadow)

+ (UIImage *) imageWithContentsOfFile:(NSString *)path withShadow:(BOOL)shadow {
   UIImage *image = [UIImage imageWithContentsOfFile:path];
   if(!shadow) return image;

   UIGraphicsBeginImageContext(CGSizeMake(image.size.width + 12, image.size.height + 12));
   CGContextSetShadow(UIGraphicsGetCurrentContext(), CGSizeMake(6.0f, -6.0f), 6.0f);
   [image drawAtPoint:CGPointZero];
   UIImage *result = UIGraphicsGetImageFromCurrentImageContext();
   UIGraphicsEndImageContext();
   return result;
}

@end