Full-featured PDF APIs Trusted by Developers

We are trying our best to offer the most comprehensive library to shorten your projects' development cycle and continuously improve our SDK products as your future requirements change and project evolves.

iOS
Android
Windows
Mac
Web
Objective-CSwift
#import <ComPDFKit/ComPDFKit.h>
- (void)viewDidLoad {
  [super viewDidLoad];
  // Get the path of a PDF
  NSString *pdfPath = @"...";
  // Initialize a CPDFDocument object with the path to the PDF file
  NSURL *url = [NSURL fileURLWithPath:pdfPath];
  CPDFDocument *document = [[[CPDFDocument alloc] initWithURL:url] autorelease];
  if (document.error && document.error.code != CPDFDocumentPasswordError) {
    return;
  }
  // Initialize a CPDFView object with the size of the entire screen
  CPDFView *pdfView = [[[CPDFView alloc] initWithFrame:self.view.bounds] autorelease];
  // Set the document to display
  pdfView.document = document;
  
  // Add the pdfView to the root view
  [self.view addSubview:pdfView];
}
iOS
Objective-CSwift
#import <ComPDFKit/ComPDFKit.h>
- (void)viewDidLoad {
  [super viewDidLoad];
  // Get the path of a PDF
  NSString *pdfPath = @"...";
  // Initialize a CPDFDocument object with the path to the PDF file
  NSURL *url = [NSURL fileURLWithPath:pdfPath];
  CPDFDocument *document = [[[CPDFDocument alloc] initWithURL:url] autorelease];
  if (document.error && document.error.code != CPDFDocumentPasswordError) {
    return;
  }
  // Initialize a CPDFView object with the size of the entire screen
  CPDFView *pdfView = [[[CPDFView alloc] initWithFrame:self.view.bounds] autorelease];
  // Set the document to display
  pdfView.document = document;
  
  // Add the pdfView to the root view
  [self.view addSubview:pdfView];
}
Android
Windows
Mac
Web

All Platforms Supported

The ComPDFKit SDK enables developers to integrate PDF annotations and conversion functions to their applications on Windows, macOS, iOS, Android, web, and Linux.
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iOS PDF Library

Why ComPDFKit?

Faster Time-to-Market
Faster Time-to-Market
Bring the functions you need without a long-term development process to roll out your applications and projects by ComPDFKit SDK.
Easy-to-use Core API
Easy-to-use Core API
Integrate PDF functionality easily with our powerful, stable, and well-documented PDF APIs to build better developer experience without requiring deep PDF knowledge.
Fully Customizable UI
Fully Customizable UI
Design unique interface of your products with fully customizable UI source code by a high-performing SDK.
Future-oriented
Future-oriented
Keep optimizing our SDK and accommodate your future needs to improve the competitiveness of your application.
Contact Us
Faster Time-to-Market
Faster Time-to-Market
Bring the functions you need without a long-term development process to roll out your applications and projects by ComPDFKit SDK.
Easy-to-use Core API
Easy-to-use Core API
Integrate PDF functionality easily with our powerful, stable, and well-documented PDF APIs to build better developer experience without requiring deep PDF knowledge.
Fully Customizable UI
Fully Customizable UI
Design unique interface of your products with fully customizable UI source code by a high-performing SDK.
Future-oriented
Future-oriented
Keep optimizing our SDK and accommodate your future needs to improve the competitiveness of your application.

What Our Customers Say

Considered that our users want to take some notes when they are reading and studying. I was trying to process PDFs and to recreate all the functionality, but what I needed to provide is a solution to a business problem at my work, not write a PDF-processing piece of software. With the help of ComPDFKit, we needn't waste much time on development process.
Gordon Hall
Operations Director, Information Technology
We were in search of the best PDF column, and have chosen ComPDFKit to help us integrate PDF files viewing, converting, and annotating capabilities. I must say it's the best choice.
Theodore Evans
Manager of Marketing Department, Education
Thanks to ComPDFKit a lot. This time, our company want to offer customers a simple, fast, and secure way to sign and fill PDF forms, they could always meet the needs of our company. That is why PDF Technologies has been our partner for many years.
Ronald W. Reagan
Product Manager, Modern service industry

SignFlow

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SignFlow is the showcase PDF app of ComPDFKit. You can check out our SDK’s functionality and use our SDK to help you build amazing apps faster.

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