DrawTextOnImage.m

- (UIImage *)drawTextOnImage:(NSString *)text :(UIImage *)img {
    UIGraphicsBeginImageContext(img.size);
    CGRect imageBoundaries = CGRectMake(0,0, img.size.width, img.size.height);
    [img drawInRect:imageBoundaries];
    
    [[UIColor grayColor] set];
    
    [text drawInRect:imageBoundaries withFont:[UIFont boldSystemFontOfSize:15] lineBreakMode:NSLineBreakByTruncatingTail alignment:NSTextAlignmentCenter];
    
    UIImage *theImage=UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return theImage;
}