Create PDF

// properties
@property (strong, nonatomic) IBOutlet UIView *PDFView;
@property (weak, nonatomic) IBOutlet UIView *displayView;
@property (nonatomic, strong) NSData *pdf;

// I have a button on the story board to generate a PDF
// it calls this function

-(IBAction)createAndSendPDF {
    self.PDFView.hidden = NO;
    self.displayView.hidden = YES;
    self.pdf = [self generatePDF];
    [self emailPDF:self.pdf];
}

//generate the PDF. This function takes the view created in storyboard (self.PDFview)and creates the graphic context needed for a PDF
- (NSData*)generatePDF {
    NSMutableData * pdfData=[NSMutableData data];
    
    // by default, the UIKit will create a 612x792 page size (8.5 x 11 inches)
    // if you pass in CGRectZero for the size
    UIGraphicsBeginPDFContextToData(pdfData, CGRectZero, nil);
    CGContextRef pdfContext=UIGraphicsGetCurrentContext();

    UIGraphicsBeginPDFPage();
    // use the currently being outputed view's layer here
    [self.PDFView.layer renderInContext:pdfContext];
    UIGraphicsEndPDFContext();
    
    self.displayView.hidden = NO;
    self.PDFView.hidden = YES;
    return pdfData;
}

// for clarity, here is my email function
- (void)emailPDF:(NSData*)pdfData {
    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
    
    picker.mailComposeDelegate = self;
    [picker setSubject:@"Kiddo PDF"];
    [picker addAttachmentData:pdfData mimeType:@"application/pdf"
                     fileName:[NSString stringWithFormat:@"Kiddo.pdf"]];
    [picker setMessageBody:@"Here's the Kiddo PDF you wanted." isHTML:YES];
    
    [self presentViewController:picker animated:YES completion:nil];
    
}

Layout your view in code or storyboard and this code will take that view and generate a pdf.