for iOS

All the PDF technology you need for your iOS app in one place.

The best tools for developers

Fast integration

Build a first-class product, complete with full RMS capabilities and touch screen using Xcode in Swift, Objective-C, or in binding libraries like Cordova, Xamarin or React Native with Foxit. Our libraries, along with our SDK UI Extension can ensure that your application has all the PDF features and functionality it needs to satisfy your users.

// Create a new document FSPDFDoc* doc = [[FSPDFDoc alloc] init]; // Set a blank page width and height and add to document floatw =612.0;floath =792.0; FSPDFPage* page = [doc insertPage:index width:w height:h]; // Add note annotation FSRectF* annot_rect = [[FSRectF alloc] initWithLeft1:10 bottom1:350 right1:50 top1:400]; FSNote* note = [[FSNote alloc] initWithAnnot:[page addAnnot:FSAnnotNote rect:annot_rect]]; // Set some properties for the annotation [note setIconName:@"Comment"]; [note setSubject:@"Note"]; [note setTitle:@"Foxit SDK"]; [note setContent:@"Note annotation."]; // Reset Appearance [note resetAppearanceStream]; NSLog(@"Add a note annotation."); // Save PDF file NSString* save_pdf_path = [output_directory stringByAppendingPathComponent:@"annotation.pdf"]; [doc saveAs:save_pdf_path save_flags
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#import "AppDelegate.h" #import <UIKit/UIKit.h> @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { NSString *sn = @"your-licence-key-signature"; NSString *key = @"your-licence-here"; FSErrorCode eRet = [FSLibrary initialize:sn key:key]; if (FSErrSuccess != eRet) { NSLog(@"License Key Invalid"); } return YES; }
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Developing with Foxit

Built for iOS

Requires iOS 9.0 or higher; Xcode 9.0 or newer for Objective-C; Xcode 9.0 or newer for Swift

Developer Benefits

Designed for faster development

Native UI

Our iOS PDF SDK is built with developers in mind. We provide a built-in PDF viewer which will half your development while allowing you to customize your viewer to your requirements and brand.

Easy to Integrate

Our iOS PDF library is fully compliant with Apple’s policies for app developers using third-party components.


Anything from smart watches, to phones, to even cars – Foxit PDF SDK renders documents inside your application just like you expected them.

Powered by Foxit’s core technology

The core technology of Foxit PDF SDK has been around for years and is trusted by a large number of well-known companies. Foxit’s powerful engine makes document viewing fast and consistent across all platforms.

Smart Forms

Give users the ability to fill out digital forms on the go with their device of choice. Apps have never been more productive!

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Digital Signature

Use ink signatures to let customers sign documents in their digital devices. Sign PDF in web apps easily without needing to print a file to sign again!

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PDF Annotations

Our PDF SDK provides full support for displaying and annotating PDF in web applications with an extensive range of functions for creating, editing or importing/exporting annotations.

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Robust functionality

More Features

Viewing & rendering

Our core API provides for high-fidelity rendering of PDF documents with optimized performance for desktop and mobile platforms.

Full-text search

Fast full-text search for any PDF document, language, or encoding type. The SQLite-based full-text search delivers near-instant results, even for repositories on any digital device.



XFA Forms

XFA Forms are XML-based forms wrapped inside a PDF. Securely capture, present, move, process, output, update and print information associated with static and dynamic XFA forms. Simplify your data sharing, transportation and availability with XFA.

Digital Rights Management

Keep your PDF documents secure by connecting your application and files to Microsoft’s Rights Management Services platform natively. Foxit PDF SDK also integrates with your IRM and DRM solution.


Achieve full GDPR-compliance by programmatically searching and sensoring sensitive information in your documents for legal or security purposes. Keep your customer and employee information safe.

Perform specific tasks

Function Specific Products

iOS PDF Reader

Our iOS PDF Reader is built with our PDF SDK for iOS and free to download from the app store. Try our technology today.

Used everywhere

Trusted by some of the world’s largest companies.

Take a look at who uses our technology.