IOS Generate PDF on iPhone

//Create empty PDF context on iPhone for later randering in it
-(CGContextRef) createPDFContext:(CGRect)inMediaBox path:(CFStringRef) path
{
    CGContextRef myOutContext = NULL;
    CFURLRef url;
    url = CFURLCreateWithFileSystemPath (NULL, // 1
path,
kCFURLPOSIXPathStyle,
false);
    if (url != NULL) {
        myOutContext = CGPDFContextCreateWithURL (url,// 2
  &inMediaBox,
  NULL);
        CFRelease(url);// 3
    }
    return myOutContext;// 4
}

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *writableDBPath = [documentsDirectory stringByAppendingPathComponent:@"tmp.pdf"];

CGContextRef pdfContext = [self createPDFContext:scrolledView.bounds path:(CFStringRef)writableDBPath];

NSLog(@"PDF Context created");
CGContextBeginPage (pdfContext,nil); // 6

//turn PDF upsidedown
CGAffineTransform transform = CGAffineTransformIdentity;
transform = CGAffineTransformMakeTranslation(0, scrolledView.bounds.size.height);
transform = CGAffineTransformScale(transform, 1.0, -1.0);
CGContextConcatCTM(pdfContext, transform);

//Draw view into PDF
[scrolledView.layer renderInContext:pdfContext];

CGContextEndPage (pdfContext);// 8
CGContextRelease (pdfContext);

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