• Quickly integrate Foxit technology into your mobile apps
  • Build a complete PDF viewer with just a few lines of codes
  • Customizable user interface and tools
  • Enterprise rendering quality
  • Seamless memory management

Download free trial now

Key features

  • Rapid-to-use PDF viewer control
  • Text Markup and Drawing Annotation tools
  • Form filling with JavaScript support
  • Typewriter and Stamp Tools
  • Bookmarks, thumbnails and comments
  • Full-text searching
  • Night mode for reading
  • Built on Foxit technology used by billions of end-users

Read full feature list here


With full access to the UI Extensions library source code, developers are able to customize the look and feel of the UI, and the functionality of the tools, to match their own unique design requirements.

Our Foxit Solution Engineers can also work with your team to create a tailored workflow.



See it in action

The Foxit MobilePDF app is a real world success story of the SDK. It is an easy-to-use PDF reader which allows you to view, annotate, and protect PDF files on Android and iOS devices while on the go. Downloaded by over a million users.



Access the same PDF development technology trusted by the worlds biggest tech companies.

Our new, easy to use interface and tools makes working with the Foxit Mobile PDF SDK a rapid development experience.

Foxit MobilePDF SDK provides complete PDF viewing, annotating and commenting, form filling, stamping, digital signing and full-text searching capabilities. It offers exceptional rendering quality, memory management and speed. With Foxit MobilePDF SDK, even developers with a limited knowledge of PDF can quickly build a professional PDF viewer with just a few lines of code on iOS and Android platforms.

Built on Foxit technology used by billions of end-users.

We have scrutinized the developer experience and built the Foxit MobilePDF SDK to simplify and speed up the development path. Your projects will be delivered faster and easier.


Foxit MobilePDF SDK is ideal for medium sized businesses, enterprise and Government institutions due to its ease-of-use, robustness and quality.



An advanced view control with an easy-to-use API for displaying PDF files on iOS and Android. With Foxit’s renowned and widely used PDF rendering technology at its core, the view control provides fast and high quality zooming, scrolling and page navigation features. The best part? It is designed for rapid integration into your apps.

Core viewer
Core viewer


The UI Extensions Component builds on the View Control, providing a customizable user interface with built-in tools for text selection, text markup and drawing, form filling, free text typing, standard and dynamic stamping, night reading mode, bookmark navigation and full-text searching. The UI Extensions Component is provided as a compiled component for rapid integration, and for complete flexibility source code is also provided which allows developers to customize the default user interface and control precisely the functionality of the default Tools.


The PDF Core API is the heart of this Rapid Development Kit, it contains the functions used in the View Control and the UI Extensions Component. The PDF Core API can be used independently for document rendering, analysis, form filling, text extraction, text search, digital signing, annotation creation and manipulation and much more.

Core API

MobilePDF SDK Version 3.0 features

Version 3.0 is currently available with the following features:

  • Digital and Hand Signature Tool
  • Password Protect PDF Tool
  • Doc Edit Mode (Insert, Extract, Delete and Reorder Pages)
  • Attachment Tools (Annotation)
  • Reflow Text
  • Insert and Extract Pages
  • Import and Export Annotation and Form Data through FDF/XFDF
  • Certificate and Password Security
  • Add Image to PDF files
  • Pressure Sensitive Ink

Learn more

Version 4.0 – coming in mid-2017

New features are always in the pipeline and are available the moment they are released. Here’s a glimpse of what’s coming in 4.0:

  • Attachments Panel in UI Extensions Component
  • Add/Edit/Remove Attachments
  • More coming soon