Create PDF view programmatically using PDFKit in swift.

In the article, I will discuss, how we can create PDF programmatically using the PDFKit framework.

First of all, The PDFKit is a framework available in AppKit since iOS 11.0 and macOS 10.4. Please click here to read more about PDFKit.

PDFView is mainly used to show the pdf file in our application and also it allows users to set zoom level, select content, navigate through a document, and copy the textual content to the Pasteboard, and also keeps track of page history.

Getting Started

Swift version: 5
iOS version: 13
Xcode: 11.3

First Create a project from Xcode.

File ▸ New ▸ Project…. Choose the iOS ▸ Application ▸ Single View App template and create a new project.

Then create a PDFCreator class where we will add all functions and variables which helps us to create the PDF.

class PDFCreator {


}

class PDFCreator {

}

Now we will add basic variables that manage the PDF layout.

pageWidth : To define page width of PDF.

pageHeight : To define page Height of PDF.

marginPoint : To define the page margin of PDF.

currentPage : To Store page count of the PDF.

 lazy var pageWidth : CGFloat  = {
        return 8.5 * 72.0
    }()
    
    lazy var pageHeight : CGFloat = {
        return 11 * 72.0
    }()
    
    lazy var pageRect : CGRect = {
        CGRect(x: 0, y: 0, width: pageWidth, height: pageHeight)
    }()
    
    lazy var marginPoint : CGPoint = {
        return CGPoint(x: 10, y: 10)
    }()
    
    lazy var marginSize : CGSize = {
        return CGSize(width: self.marginPoint.x * 2 , height: self.marginPoint.y * 2)
    }()
    
     var currentPage = 0

lazy var pageWidth : CGFloat = {

return 8.5 * 72.0

}()

lazy var pageHeight : CGFloat = {

return 11 * 72.0

}()

lazy var pageRect : CGRect = {

CGRect(x: 0, y: 0, width: pageWidth, height: pageHeight)

}()

lazy var marginPoint : CGPoint = {

return CGPoint(x: 10, y: 10)

}()

lazy var marginSize : CGSize = {

return CGSize(width: self.marginPoint.x * 2 , height: self.marginPoint.y * 2)

}()

var currentPage = 0

Now create a function that creates the actual PDF data.

func prepareData(dataList:[String]) -> Data {
        let pdfMetaData = [
            kCGPDFContextCreator: "Demo creator",
            kCGPDFContextAuthor: "Webkul",
            kCGPDFContextTitle: "Simple PDF"
        ]
        
        let format = UIGraphicsPDFRendererFormat()
        format.documentInfo = pdfMetaData as [String: Any]
        let renderer = UIGraphicsPDFRenderer(bounds: pageRect, format: format)
        let data = renderer.pdfData { (context) in
            for obj in dataList{
                self.addText(obj, context: context)
            }
        }
        return data
    }

func prepareData(dataList:[String]) -> Data {

let pdfMetaData = [

kCGPDFContextCreator: "Demo creator",

kCGPDFContextAuthor: "Webkul",

kCGPDFContextTitle: "Simple PDF"

]

let format = UIGraphicsPDFRendererFormat()

format.documentInfo = pdfMetaData as [String: Any]

let renderer = UIGraphicsPDFRenderer(bounds: pageRect, format: format)

let data = renderer.pdfData { (context) in

for obj in dataList{

self.addText(obj, context: context)

}

return data

}

 @discardableResult
    func addText(_ text : String, context : UIGraphicsPDFRendererContext) -> CGFloat {
        
        let textFont = UIFont.init(name: "Georgia", size: 27)
        let paragraphStyle = NSMutableParagraphStyle()
        paragraphStyle.alignment = .natural
        paragraphStyle.lineBreakMode = .byWordWrapping
        let textAttributes = [
            NSAttributedString.Key.paragraphStyle: paragraphStyle,
            NSAttributedString.Key.font: textFont
        ]
        let textString = CFAttributedStringCreate(nil, text as CFString, textAttributes as CFDictionary)
        let frame = CTFramesetterCreateWithAttributedString(textString!)
        var currentRange = CFRangeMake(0, 0)
        var done = false
        repeat {
            context.beginPage()
            currentPage += 1
            drawPageNumber(currentPage)
            currentRange = renderPage(currentPage, withTextRange: currentRange,andFramesetter: frame)
            if currentRange.location == CFAttributedStringGetLength(textString) {
                done = true
            }
        } while !done
        return CGFloat(currentRange.location + currentRange.length)

    }

@discardableResult

func addText(_ text : String, context : UIGraphicsPDFRendererContext) -> CGFloat {

let textFont = UIFont.init(name: "Georgia", size: 27)

let paragraphStyle = NSMutableParagraphStyle()

paragraphStyle.alignment = .natural

paragraphStyle.lineBreakMode = .byWordWrapping

let textAttributes = [

NSAttributedString.Key.paragraphStyle: paragraphStyle,

NSAttributedString.Key.font: textFont

]

let textString = CFAttributedStringCreate(nil, text as CFString, textAttributes as CFDictionary)

let frame = CTFramesetterCreateWithAttributedString(textString!)

var currentRange = CFRangeMake(0, 0)

var done = false

repeat {

context.beginPage()

currentPage += 1

drawPageNumber(currentPage)

currentRange = renderPage(currentPage, withTextRange: currentRange,andFramesetter: frame)

if currentRange.location == CFAttributedStringGetLength(textString) {

done = true

}

} while !done

return CGFloat(currentRange.location + currentRange.length)

}

func renderPage(_ pageNum: Int, withTextRange currentRange: CFRange, andFramesetter framesetter: CTFramesetter?) -> CFRange {
        var currentRange = currentRange
        let currentContext = UIGraphicsGetCurrentContext()
        currentContext?.textMatrix = .identity
        let frameRect = CGRect(x: self.marginPoint.x, y: self.marginPoint.y, width: self.pageWidth - self.marginSize.width, height: self.pageHeight - self.marginSize.height - 20)
        let framePath = CGMutablePath()
        framePath.addRect(frameRect, transform: .identity)
        let frameRef = CTFramesetterCreateFrame(framesetter!, currentRange, framePath, nil)
        currentContext?.translateBy(x: 0, y: self.pageHeight)
        currentContext?.scaleBy(x: 1.0, y: -1.0)
        CTFrameDraw(frameRef, currentContext!)
        currentRange = CTFrameGetVisibleStringRange(frameRef)
        currentRange.location += currentRange.length
        currentRange.length = CFIndex(0)
        return currentRange
    }

func renderPage(_ pageNum: Int, withTextRange currentRange: CFRange, andFramesetter framesetter: CTFramesetter?) -> CFRange {

var currentRange = currentRange

let currentContext = UIGraphicsGetCurrentContext()

currentContext?.textMatrix = .identity

let frameRect = CGRect(x: self.marginPoint.x, y: self.marginPoint.y, width: self.pageWidth - self.marginSize.width, height: self.pageHeight - self.marginSize.height - 20)

let framePath = CGMutablePath()

framePath.addRect(frameRect, transform: .identity)

let frameRef = CTFramesetterCreateFrame(framesetter!, currentRange, framePath, nil)

currentContext?.translateBy(x: 0, y: self.pageHeight)

currentContext?.scaleBy(x: 1.0, y: -1.0)

CTFrameDraw(frameRef, currentContext!)

currentRange = CTFrameGetVisibleStringRange(frameRef)

currentRange.location += currentRange.length

currentRange.length = CFIndex(0)

return currentRange

}

Now add a page footer in the PDF.

 func drawPageNumber(_ pageNum: Int) {
        let theFont = UIFont.systemFont(ofSize: 20)
        let pageString = NSMutableAttributedString(string: "Page \(pageNum)")
        pageString.addAttribute(NSAttributedString.Key.font, value: theFont, range: NSRange(location: 0, length: pageString.length))
        let pageStringSize =  pageString.size()
        let stringRect = CGRect(x: (pageRect.width - pageStringSize.width) / 2.0, y: pageRect.height - (pageStringSize.height) / 2.0 - 15,  width: pageStringSize.width, height: pageStringSize.height)
        pageString.draw(in: stringRect)
        
    }

func drawPageNumber(_ pageNum: Int) {

let theFont = UIFont.systemFont(ofSize: 20)

let pageString = NSMutableAttributedString(string: "Page \(pageNum)")

pageString.addAttribute(NSAttributedString.Key.font, value: theFont, range: NSRange(location: 0, length: pageString.length))

let pageStringSize = pageString.size()

let stringRect = CGRect(x: (pageRect.width - pageStringSize.width) / 2.0, y: pageRect.height - (pageStringSize.height) / 2.0 - 15, width: pageStringSize.width, height: pageStringSize.height)

pageString.draw(in: stringRect)

}

And, Now show this PDF Data in the ViewController.

let pdfView = PDFView(frame: view.frame)
            if let pdfDocument = PDFDocument(data:url) {
            pdfView.displayMode = .singlePageContinuous
            pdfView.autoScales = true
            pdfView.displayDirection = .vertical
            pdfView.document = pdfDocument
            view.addSubview(pdfView)
        }

let pdfView = PDFView(frame: view.frame)

if let pdfDocument = PDFDocument(data:url) {

pdfView.displayMode = .singlePageContinuous

pdfView.autoScales = true

pdfView.displayDirection = .vertical

pdfView.document = pdfDocument

view.addSubview(pdfView)

}

I hope this code will help you better to understand how PDF generates. If you feel any doubt or query please comment below.

Thank you.

Debabrata Roy 2 December 2020

. . .

15 comments

Dipesh Feb 4, 2021 at 5:48 pm

Can you link you git project how you have worked it , tried same but could not get something working

Debabrata Roy (Moderator) Oct 12, 2021 at 8:04 pm
We don’t have any git project for this blog. please share issue details here, we will help you to fix it.

Reply
- Ronald Oct 20, 2021 at 10:05 pm
  Please explain how to “Add that PDF Data in the ViewController”.
  
  Reply
  - Debabrata Roy (Moderator) Dec 1, 2021 at 9:20 am
    I have add complete code in comment, please check
    
    Reply

Hubert Nov 1, 2021 at 10:43 pm

hello,

It would be great if you could write a similar post dedicated to macOS ! How generate a pdf on macOS big sur ? Thanks

Debabrata Roy (Moderator) Nov 29, 2021 at 8:12 pm
Please try GraphicsContext to create PDF for macOS.

Reply
- Andrew Aug 4, 2022 at 3:24 pm
  Is there any guides on using GraphicsContext to create PDF for MacOS? I can’t seem to find anything online…
  
  Reply
  - Debabrata Roy (Moderator) Aug 8, 2022 at 7:11 pm
    Please check this doc.https://www.hackingwithswift.com/read/27/3/drawing-into-a-core-graphics-context-with-uigraphicsimagerenderer
    
    Reply

Esteban Dec 1, 2021 at 1:27 am

Hi Roy,
For some reason this is the topic that gives me the hugest headache of my life, is there any chance that you can make a video of create a PDF file (single page) to show more details on this? You are the most updated and I’ve many videos that are out of date

Debabrata Roy (Moderator) Dec 1, 2021 at 9:22 am
I have added full code in below.

Reply

Debabrata Roy (Moderator) Dec 1, 2021 at 9:17 am

import UIKit
import PDFKit

class PDFCreator: NSObject {
var headerImage = UIImage(named: “qr-code”)
let defaultOffset: CGFloat = 20
let tableDataItems: String
var yPosition : CGFloat = 0
var drawContext: CGContext!
var topMargin : CGFloat = 70
var bottomMargin : CGFloat = 30
var currentPageNo = 1
var title = “”
var topTitle = “CUSTOM REPORT”

var backgroundColor = UIColor(hexString: “#F19A37”)
init(tableDataItems: String,headerImage:UIImage,title:String,topTitle:String) {
self.tableDataItems = tableDataItems
self.headerImage = headerImage
self.title = title
self.topTitle = topTitle
}

func create() -> Data {
// default page format
let pageWidth = 8.3 * 72.0
let pageHeight = 11 * 72.0
let pageRect = CGRect(x: 0, y: 0, width: pageWidth, height: pageHeight)
let renderer = UIGraphicsPDFRenderer(bounds: pageRect, format: UIGraphicsPDFRendererFormat())
let data = renderer.pdfData { context in
drawContext = context.cgContext
context.beginPage()
drawTableHeaderTitles( pageRect: pageRect)
footer(pageRect: pageRect)
drawtitle(pageRect: pageRect)
drawTableData(drawContext: drawContext, pageRect: pageRect, data: tableDataItems)
if currentPageNo != 1{
waterMark(pageRect: pageRect, context: drawContext)
}
}
return data
}

func calculateNumberOfElementsPerPage(with pageRect: CGRect) -> Int {
let rowHeight = (defaultOffset * 3)
let number = Int((pageRect.height – rowHeight) / rowHeight)
return number
}
}

// Drawings
extension PDFCreator {
func drawtitle(pageRect: CGRect){
if title != “”{
drawContext.saveGState()

let style = NSMutableParagraphStyle()

style.alignment = NSTextAlignment.center
var att = boldAttribute(size: 16, color: .black)
att[.paragraphStyle] = style
let attributedText = NSAttributedString(string: title, attributes: att)
let height = attributedText.height(containerWidth: pageRect.width – (2*defaultOffset))
let textRect = CGRect(x: 10 ,
y: yPosition + 10,
width: pageRect.width,
height: height)
attributedText.draw(in: textRect)
title = “”
yPosition += height + 20
drawContext.restoreGState()
}
}

func drawTableTopImage(drawContext: CGContext,pageRect: CGRect,image:UIImage) {
drawContext.saveGState()
drawContext.restoreGState()
image.draw(in: pageRect)
let textFont = UIFont.systemFont(ofSize: 45)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .left
paragraphStyle.lineBreakMode = .byWordWrapping
paragraphStyle.alignment = NSTextAlignment.center
let textAttributes = [
NSAttributedString.Key.paragraphStyle: paragraphStyle,
NSAttributedString.Key.font: textFont,
NSAttributedString.Key.foregroundColor : UIColor.white
]

let attributedText = NSAttributedString(string: topTitle, attributes: textAttributes)
let textRect = CGRect(x: 110 ,
y: 195,
width: 350,
height: 140)
attributedText.draw(in: textRect)
yPosition += pageRect.height

}

func drawTableData(drawContext: CGContext,pageRect: CGRect,data: String) {

drawContext.setLineWidth(1.0)
drawContext.saveGState()

drawContext.move(to: CGPoint(x: defaultOffset, y: defaultOffset ))

var lastDrawnFrame = CGRect(x: 0, y: 0, width: 0, height: 0)
let textAttributes = normalAttribute()
let actualRiskName = NSAttributedString(string: data, attributes: textAttributes)

lastDrawnFrame = drawAttributedText(actualRiskName,width:pageRect.width – 20, pageRect: pageRect, currentOffset: CGPoint(x: defaultOffset + lastDrawnFrame.width + 13, y: yPosition-1 ))
yPosition = lastDrawnFrame.origin.y + lastDrawnFrame.height

yPosition += 10

drawContext.restoreGState()

}

func footer (pageRect: CGRect){
drawContext.saveGState()
drawContext.setFillColor(backgroundColor.cgColor)
let textFont = UIFont.systemFont(ofSize: 10)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .center
paragraphStyle.lineBreakMode = .byWordWrapping
let textAttributes = [
NSAttributedString.Key.paragraphStyle: paragraphStyle,
NSAttributedString.Key.font: textFont,
NSAttributedString.Key.foregroundColor:UIColor.white
]
drawContext.move(to: CGPoint(x: 0, y: pageRect.height – bottomMargin))
drawContext.addRect(CGRect(x: 0, y: Int(pageRect.height – bottomMargin), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))
drawContext.fill(CGRect(x: 0, y: Int(pageRect.height – bottomMargin), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))
var text = NSAttributedString(string: “Webkul Software PVT LTD.”, attributes: textAttributes)

text.draw(in: CGRect(x: 0, y: Int(pageRect.height – bottomMargin + 7), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))
drawContext.setFillColor(backgroundColor.cgColor)
drawContext.addRect(CGRect(x: Int((pageRect.width – 60)/3) + 2, y: Int(pageRect.height – bottomMargin), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))
drawContext.fill(CGRect(x: Int((pageRect.width – 60)/3) + 2, y: Int(pageRect.height – bottomMargin), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))
text = NSAttributedString(string: “000-000-0000”, attributes: textAttributes)

text.draw(in: CGRect(x: Int((pageRect.width – 60)/3) + 2, y: Int(pageRect.height – bottomMargin + 7), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))

drawContext.setFillColor(backgroundColor.cgColor)

drawContext.addRect(CGRect(x: (Int((pageRect.width – 60)/3) * 2) + 4, y: Int(pageRect.height – bottomMargin), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))
drawContext.fill(CGRect(x: (Int((pageRect.width – 60)/3) * 2) + 4, y: Int(pageRect.height – bottomMargin), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))
text = NSAttributedString(string: “[email protected]”, attributes: textAttributes)

text.draw(in: CGRect(x: (Int((pageRect.width – 60)/3) * 2) + 4, y: Int(pageRect.height – bottomMargin + 7), width: Int((pageRect.width – 60)/3), height: Int(bottomMargin)))

drawContext.setFillColor(backgroundColor.cgColor)
drawContext.addRect(CGRect(x: Int(pageRect.width – 54), y: Int(pageRect.height – bottomMargin), width: 54, height: Int(bottomMargin)))
drawContext.fill(CGRect(x: Int(pageRect.width – 54), y: Int(pageRect.height – bottomMargin), width: 54, height: Int(bottomMargin)))
text = NSAttributedString(string: “\(currentPageNo)”, attributes: textAttributes)

text.draw(in: CGRect(x: Int(pageRect.width – 54), y: Int(pageRect.height – bottomMargin + 7), width: 54, height: Int(bottomMargin)))

drawContext.strokePath()
drawContext.restoreGState()
currentPageNo += 1
}
func drawTableHeaderTitles( pageRect: CGRect) {
drawContext.saveGState()
drawContext.move(to: CGPoint(x: 100, y: 0 ))
headerImage?.draw(in: CGRect(x: 0, y: 0, width: 50, height: 50))
headerImage?.draw(in: CGRect(x: pageRect.width – 50, y: 0, width: 50, height: 50))
drawContext.setFillColor(UIColor(hexString: “#F19A37”).cgColor)
drawContext.move(to: CGPoint(x: 0, y: topMargin – 2))
drawContext.addLine(to: CGPoint(x: pageRect.width, y: topMargin – 2))
drawContext.strokePath()
drawContext.restoreGState()

}
//paragraphStyle.alignment = NSTextAlignment.Justified

fileprivate func drawAttributedText( _ attributedText: NSAttributedString,width:CGFloat, pageRect: CGRect,currentOffset: CGPoint) -> CGRect {

var drawingYoffset = currentOffset.y

let currentText = CFAttributedStringCreateCopy(nil, attributedText as CFAttributedString)
let framesetter = CTFramesetterCreateWithAttributedString(currentText!)
var currentRange = CFRange(location: 0, length: 0)
var done = false

var lastDrawnFrame: CGRect!

repeat {
drawContext.saveGState()

drawContext.textMatrix = CGAffineTransform.identity

let textMaxWidth = width – defaultOffset * 2
let textMaxHeight = pageRect.height – (drawingYoffset + topMargin + 10) – bottomMargin – 10

let frameRect = CGRect(x: currentOffset.x, y: drawingYoffset , width: textMaxWidth, height: textMaxHeight)
let framePath = UIBezierPath(rect: frameRect).cgPath

let frameRef = CTFramesetterCreateFrame(framesetter, currentRange, framePath, nil)

drawContext.translateBy(x: 0, y: pageRect.height + drawingYoffset – bottomMargin)
drawContext.scaleBy(x: 1.0, y: -1.0)

// Draw the frame.
CTFrameDraw(frameRef, drawContext)

// Pop state
drawContext.restoreGState()

// Update the current range based on what was drawn.
let visibleRange = CTFrameGetVisibleStringRange(frameRef)
currentRange = CFRange(location: visibleRange.location + visibleRange.length , length: 0)

// Update last drawn frame
let constraintSize = CGSize(width: textMaxWidth, height: textMaxHeight)
let drawnSize = CTFramesetterSuggestFrameSizeWithConstraints(framesetter, visibleRange, nil, constraintSize, nil)
lastDrawnFrame = CGRect(x: currentOffset.x, y: drawingYoffset, width: drawnSize.width, height: drawnSize.height)

if currentRange.location == CFAttributedStringGetLength(currentText) {
done = true
// print(“exit”)
} else {
// begin a new page to draw text that is remaining.

createPage(pageRect:pageRect)
drawingYoffset = 0
yPosition = 0
// print(“begin a new page to draw text that is remaining”)
}

} while(!done)

return lastDrawnFrame
}
func boldAttribute(size: CGFloat,color:UIColor) -> [NSAttributedString.Key : NSObject]{
let textFont = UIFont.boldSystemFont(ofSize: size)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .left
paragraphStyle.lineBreakMode = .byWordWrapping
let textAttributes = [
NSAttributedString.Key.paragraphStyle: paragraphStyle,
NSAttributedString.Key.font: textFont,
NSAttributedString.Key.foregroundColor : color
]
return textAttributes
}
func normalAttribute() -> [NSAttributedString.Key : NSObject]{
let textFont = UIFont.systemFont(ofSize: 10.0)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .left
paragraphStyle.lineBreakMode = .byWordWrapping
let textAttributes = [
NSAttributedString.Key.paragraphStyle: paragraphStyle,
NSAttributedString.Key.font: textFont
// NSAttributedString.Key.foregroundColor : UIColor(hexString: “333333”)

]
return textAttributes
}
func waterMark(pageRect: CGRect, context: CGContext) {

// Draw rotated overlay string
UIGraphicsPushContext(context)
context.saveGState()
let attributes: [NSAttributedString.Key: Any] = [
NSAttributedString.Key.foregroundColor: #colorLiteral(red: 0.5899451484, green: 0.5899451484, blue: 0.5899451484, alpha: 0.2536386986),
NSAttributedString.Key.font: UIFont.boldSystemFont(ofSize: 64)
]
drawVerticalText(text: “PDFKit app”, withAttributes: attributes, origin: CGPoint(x: 250, y: 450) , context: drawContext)

context.restoreGState()
UIGraphicsPopContext()

}
func drawVerticalText(text: String, withAttributes attributes: [NSAttributedString.Key: Any]?, origin: CGPoint, context: CGContext) {

let halfRadian : CGFloat = -(CGFloat.pi / 5.0)

context.rotate(by: halfRadian )

let translatedOrigin = CGPoint(x: -origin.x, y: origin.y)

// Draw the text.

text.draw(at: translatedOrigin, withAttributes: attributes)

context.rotate(by: -halfRadian )
}
func createPage(pageRect:CGRect){
if currentPageNo != 1{
waterMark(pageRect: pageRect, context: drawContext)
}
UIGraphicsBeginPDFPageWithInfo(pageRect, nil)
footer(pageRect: pageRect)
drawTableHeaderTitles( pageRect: pageRect)
yPosition = 0
}

}

extension NSAttributedString {

func height(containerWidth: CGFloat) -> CGFloat {

let rect = self.boundingRect(with: CGSize.init(width: containerWidth, height: CGFloat.greatestFiniteMagnitude),
options: [.usesLineFragmentOrigin, .usesFontLeading],
context: nil)
return ceil(rect.size.height)
}

func width(containerHeight: CGFloat) -> CGFloat {

let rect = self.boundingRect(with: CGSize.init(width: CGFloat.greatestFiniteMagnitude, height: containerHeight),
options: [.usesLineFragmentOrigin, .usesFontLeading],
context: nil)
return ceil(rect.size.width)
}
}

Debabrata Roy (Moderator) Dec 1, 2021 at 9:19 am
let pdfCreator = PDFCreator(tableDataItems: “PDF data”, headerImage:UIImage(named:”qr-code”)!,title:”Custom Report For ” , topTitle: “CUSTOM REPORT”)
if let vc = self.storyboard?.instantiateViewController(withIdentifier: “PDFViewerViewController”) as? PDFViewerViewController{
vc.fileName = “test.pdf”
vc.pdfData = pdfCreator.create()
self.navigationController?.pushViewController(vc, animated: true)
}

Reply
- Debabrata Roy (Moderator) Dec 1, 2021 at 9:19 am
  import WebKit
  class PDFViewerViewController: UIViewController {
  var url:URL!
  var pdfData : Data!
  var pdfView: PDFView!
  var fileName = “”
  override func viewDidLoad() {
  super.viewDidLoad()
  pdfView = PDFView()
  pdfView.translatesAutoresizingMaskIntoConstraints = false
  view.addSubview(pdfView)
  pdfView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor,constant: 0).isActive = true
  pdfView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
  pdfView.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true
  pdfView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor).isActive = true
  pdfView.document = PDFDocument(data: pdfData)
  pdfView.autoScales = true
  }
  }
  
  Reply

Björn Jun 20, 2022 at 12:58 pm

Hi, thank you for the code.
Can you tell me, how to implement the sum of pages like Page 1/4 – Page 2/4?
Thank you

Debabrata Roy (Moderator) Aug 8, 2022 at 7:04 pm
For this, you have to Edit in PDFDocument.
Please checkout the below link you will get an idea.https://github.com/foliojs/pdfkit/issues/953#issuecomment-579578022

Reply

Create PDF view programmatically using PDFKit in swift.

Getting Started

Leave a Comment Cancel Reply

15 comments

Message Sent!