Open PDFs and Build PDF Readers in Objective-C

 

This is a comprehensive article focused on Objective-C PDF readers. We will present some Objective-C developed free PDF tools and download links for everybody who wants to open PDF files. 

 

If you're interested in integrating an Objective-C PDF reader into your Mac and iOS apps, follow the Objective-C guidance steps at the end to start building your own PDF reader. 

Use Free Demo to Open PDF Files - PDF Demo of ComPDFKit Objective-C Library

 

ComPDFKit is a PDF Library that supports opening PDF files on Mac, iOS, Windows, Android, and Web. So what does ComPDFKit mean for someone who's just looking for an app to read and edit PDF files? Its Free Demo is a freely accessible PDF reading and editing tool. Follow the steps below to get a PDF Reader for different platforms to render and view PDF!

 

 

 

Open PDF Files with iOS PDF Reader

 

1. Download ComPDFKit Demo for Objective-C for your iOS.

 

 

2. Install ComPDFKit iOS Version Demo: After you download the zip file, you will find the demo in PDFViewer > PDFViewer.xcodeproj. Then, run the following project.pbxproj file.

 

 

3. Open PDF Files with ComPDFKit demo on iOS

 

 

Open PDF Files with Mac PDF Reader

 

1. Contact us and get ComPDFKit Demo for Objective-C for your Mac.

 

2. Install ComPDFKit Mac Version Demo: After you download the zip file, you will find the demo in PDFViewer-Mac > PDFViewer-Mac.xcodeproj. Then, run the following project.pbxproj file.

 

 

3. Open PDF Files with ComPDFKit Demo for Mac

 

PDF Reader Online or on More Platforms

 

Click the Links Below to Get the PDF Reader on other devices:

 

• Read PDFs Online Now
• Read PDFs on Android
• Read PDFs on Windows

 

 

Use PDF Reader Pro to Open PDF Files - Free Objective-C PDF App

 

Download Links

 

PDF Reader Pro is a full-platform PDF software supported by ComPDFKit, focusing on PDF reading and editing. It offers both paid and free versions, with the free version available for permanent use. Below are the download links for different platforms:

 

 

Objective-C Apps:

• PDF Reader Pro on Mac

• PDF Reader Pro on iOS

 

Other Apps:

• PDF Reader Pro on Windows

• PDF Reader Pro on Android

 

Advantages

 

• Free features available for permanent use

• Free version functionalities: support for reading, annotation, form filling, convert pdf, encrypt PDFs. You can check the comparison chart of PDF Reader Pro features supported by different versions.

• Support for all platforms: Mac, Windows, iOS, and Android.

• After purchasing the product, one account can access all features across all platforms

• Reliable PDF technology, focused on PDF reading and editing for over a decade

Open and Render PDFs With ComPDFKit PDF Objective-C Library

 

Step 1: Get License and SDK Package of ComPDFKit Objective-C PDF Library

 

License and SDK package for ComPDFKit Objective-C PDF library could be obtained on the Website directly. No need for the help of sales.

 

 

Step 2: Integrating ComPDFKit Objective-C PDF Render Library

 

To integrate the Objective-C library into your app or system, the following steps are required. All the details of the following steps are provided in the ComPDFKit developer guides for iOS in Objective-C.

 

1. Create a new iOS project in Objective-C if you don’t have any project.

2. Integrate ComPDFKit SDK packages into your apps (You have already got from step 1).

3. Apply the license key you get from step 1.

4. Display a PDF document.

 

 

Render PDF Files with UIWebView

 

Developers often use the UIWebView control to display HTML content within iOS applications. For example, this control can be used to provide a consistent checkout process between web and mobile applications when customers add products to their cart and initiate checkout. Below are the steps for rendering PDFs using the UIWebView control. It is important to note that the App Store will no longer accept new app versions using this control after December 2020.

 

Step 1: Creating the Project

 

Xcode - File → New → Project…, choose “App”:

 

Enter the product and organization names and choose Objective-C as the language:

 

Choose the destination and create the project.

 

Step 2: Adding a PDF to the Project

 

Drag and drop a document into the newly created project. Choose to add it to your app’s target:

 

The document will show up in the file list on the left and in the “Copy Bundle Resources” build phase of your app’s target:

 

Step 3: Opening a PDF Inside of a Web View

 

We’re creating a web view in ViewController:

 

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    UIWebView *webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
    webView.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;
    [self.view addSubview:webView];

    NSURL *documentURL = [[[NSBundle mainBundle] resourceURL] URLByAppendingPathComponent:@"Document.pdf"];
    NSURLRequest *urlRequest = [[NSURLRequest alloc] initWithURL:documentURL];
    [webView loadRequest:urlRequest];
}

 

After finishing the several steps, we can scroll through a PDF document. But annotations, forms, and other functionalities are not allowed. These are what ComPDFKit PDF SDK can provide, with more convenient operations.

 

 

Conclusion

 

Whether you're looking for a free online PDF Reader to open PDF files or an Objective-C PDF Library to integrate into your application, this article meets your needs. In addition to PDF reading, ComPDFKit offers more PDF editing features. Click the link below to contact us.