Get PDF from a UILabel text mask

I'm trying to get PDF from UIView with UILabel text mask.

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  override func viewDidLoad() {
        super.viewDidLoad()
        let label = UILabel(frame: CGRect(x: 0, y: 0, width: 200, height: 200 ))
        label.text = "Label Text"
        label.font = UIFont.systemFont(ofSize: 25)
        label.textAlignment = .center
        label.textColor = UIColor.white
        let overlayView = UIImageView(frame: CGRect(x: 0, y: 0, width: 200, height: 200 ))
        overlayView.image = UIImage(named: "jakob-rosen.jpg")
        overlayView.mask = label
        view_process.addSubview(overlayView)
        
    }
   func exportAsPdfFromView(){
        let pdfPageFrame = CGRect(x: 0, y: 0, width: view_process.bounds.size.width, height: view_process.bounds.size.height)
        let pdfData = NSMutableData()
        UIGraphicsBeginPDFContextToData(pdfData, pdfPageFrame, nil)
        UIGraphicsBeginPDFPageWithInfo(pdfPageFrame, nil)
        guard let pdfContext = UIGraphicsGetCurrentContext() else { return "" }
       
        view_process.layer.render(in: pdfContext)
        UIGraphicsEndPDFContext()
          
       let path = self.saveViewPdf(data: pdfData)
        print(path)
      }
    func saveViewPdf(data: NSMutableData) -> String {
        let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
        let docDirectoryPath = paths[0]
        let pdfPath = docDirectoryPath.appendingPathComponent("viewPdf.pdf")
        if data.write(to: pdfPath, atomically: true) {
            return pdfPath.path
        } else {
            return ""
        }
      }

but I do not get PDF with mask. I don't want to convert UIView to UImage and then convert UImage to PDF. I want to editable PDF so don't want to convert into UIImage.


Can anyone help me How to convert Masked UILabel to PDF ?

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