Using PDFNet From a Swift Project on iOS

PDFNet is easy to use with a Swift project. This post will show how to set up a new Swift project and display a PDF.

This post will show you the basics of starting a new Swift project that uses PDFNet. For a comprehensive introduction to PDFNet on iOS, please see Getting Started on iOS. A completed Swift sample project is included with the most recent version of PDFNet for iOS.

1. Open Xcode 8+, and select File->New Project->Single View Application. Create a new Universal Swift app.

2. Add the following PDFNet files to your project:

• Lib/Framework-dynamic/PDFNet.framework
• Lib/Tools/Tools.framework
• TestFiles/mech.pdf

3. Link in the following Apple frameworks

• MediaPlayer.framework
• CoreText.framework
• CoreMedia.framework

4.  In the file ViewController.swift, change the viewDidLoad() function to the following:

import UIKit
import PDFNet
import Tools

class ViewController: UIViewController {

   override func viewDidLoad() {
  super.viewDidLoad()
 
  // Do any additional setup after loading the view, typically from a nib.
 
  // initialize PDFNet
  PTPDFNet.initialize("")
 
  // create a PTPDFViewCtrl and add it to the view
  let ctrl = PTPDFViewCtrl()
  ctrl.frame = CGRect(origin: CGPoint.zero, size: self.view.bounds.size)
  ctrl.setBackgroundColor(0, g: 0, b: 0, a: 0)
  self.view.backgroundColor = UIColor.init(colorLiteralRed:0.7, green:0.7, blue:0.7, alpha: 1.0)
  self.view.addSubview(ctrl)
 
  // open the PDF document included in the bundle in the PTPDFViewCtrl
  let docPath = Bundle.main.path(forResource: "mech", ofType: "pdf")
  let doc = PTPDFDoc(filepath: docPath!)
  ctrl.setDoc(doc)
 
  ctrl.autoresizingMask = [.flexibleWidth, .flexibleHeight];

  // add the toolmanager (used to implement text selection, annotation editing, etc.
  let toolManager = ToolManager(pdfViewCtrl: ctrl)
  ctrl.toolDelegate = toolManager;
  _ = toolManager?.changeTool(PanTool.self)
 
  }

 override func didReceiveMemoryWarning() {
 super.didReceiveMemoryWarning()
 // Dispose of any resources that can be recreated.
 }


}

If you run the project, the program should now display the PDF mech.pdf. As stated above, a completed version of this sample is available in the latest version of PDFNet, so please check it out!