I’m using the following code to draw text on a PDF Document.This seems to draw the text only on a single page.I’m trying to iterate through each page,draw string on it and finally display the PDF document from the MutableData. How do I draw the string on all pages?

                        var pdffile=PDFDocument(url: input)
                        let data = NSMutableData()
                        let consumer = CGDataConsumer(data: data as CFMutableData)!
                        for y in stride(from: 0, to: pdffile!.pageCount, by: 1)
                        {
                        let page: PDFPage = pdffile!.page(at: y)!
                        let outputBounds = page.bounds(for: PDFDisplayBox.mediaBox)
                        var mediaBox = CGRect(x: 0, y: 0, width: outputBounds.size.width, height: outputBounds.size.height)
                        let context = CGContext(consumer: consumer, mediaBox: &mediaBox, nil)!
                        NSGraphicsContext.current = NSGraphicsContext(cgContext: context, flipped: false)

                        context.beginPDFPage(nil)
                        page.draw(with: .mediaBox, to: context)
                        text.draw(in:drawrect,withAttributes:textFontAttributes);
                        context.endPDFPage()
                        context.closePDF()
                        }
                        let anotherDocument = PDFDocument(data:data as Data)
                        pdfview.document=anotherDocument