iOS, Swift: Create a PDF file from an HTML string.

iOSCreatePDF.swift

// Thanks to http://www.labs.saachitech.com/2012/10/23/pdf-generation-using-uiprintpagerenderer
// Note: including images in the HTML won't work, see here:
// https://github.com/nyg/HTMLWithImagesToPDF

import UIKit

// 1. Create a print formatter

let html = "<b>Hello <i>World!</i></b>"
let fmt = UIMarkupTextPrintFormatter(markupText: html)

// 2. Assign print formatter to UIPrintPageRenderer

let render = UIPrintPageRenderer()
render.addPrintFormatter(fmt, startingAtPageAt: 0)

// 3. Assign paperRect and printableRect

let page = CGRect(x: 0, y: 0, width: 595.2, height: 841.8) // A4, 72 dpi
render.setValue(page, forKey: "paperRect")
render.setValue(page, forKey: "printableRect")

// 4. Create PDF context and draw

let pdfData = NSMutableData()
UIGraphicsBeginPDFContextToData(pdfData, .zero, nil)

for i in 0..<render.numberOfPages {
    UIGraphicsBeginPDFPage();
    render.drawPage(at: i, in: UIGraphicsGetPDFContextBounds())
}

UIGraphicsEndPDFContext();

// 5. Save PDF file

guard let outputURL = try? FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false).appendingPathComponent("output").appendingPathExtension("pdf")
    else { fatalError("Destination URL not created") }

pdfData.write(to: outputURL, atomically: true)
print("open \(outputURL.path)") // command to open the generated file

Hey,
I think you need to use javascript with your HTML code to load image in web view and then create a pdf
Use evaluateJavaScript() to run javascript in web view

Hey,
I think you need to use javascript with your HTML code to load image in web view and then create a pdf
Use evaluateJavaScript() to run javascript in web view

Now all works good! I used link above https://github.com/nyg/HTMLWithImagesToPDF in a wrong way. Image is in the PDF file now. thanks