for Web

Open, view and annotate PDF files in your mobile or desktop browser using JavaScript. No plug-ins required and native-level performance, regardless of device.

The best tools for developers

Fast integration

Foxit PDF SDK for Web is a JavaScript-based PDF solution built to run in both desktop and server environments, both 32-bit and 64-bit.

// Set new PDF metadata
server.js 100% | 6/6 ln : 4
Developing with Foxit

Works with all modern web browsers

PDF SDK for Web is built on the most popular web technologies, and requires minimal server-side resources.

Developer Benefits

Designed for faster development

JS backend, HTML/CSS/JS frontend

PDF SDK for Web is built on commonly used web technologies to get your programmers up to speed faster, thus reducing time to market.

Client-side Deployment

Some PDF SDKs require to be deployed in a server, severely increasing the cost of use. Foxit PDF SDK for Web operates client-side thus reducing your server hosting costs.

Easy to Integrate

Developers can easily integrate a PDF viewer in a website by referring to Foxit PDF SDK for Web’s resource files and writing a small amount of code to display and edit PDF files, and have a wealth of interfaces to connect users and user data.

Powered by Foxit’s core technology

The core technology of PDF SDK for Web is based on Foxit’s PDF rendering engine, which is trusted by a large number of well-known companies. Foxit’s powerful PDF engine makes document viewing fast and consistent in 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.

Rights management

Our PDF SDK can generate secure PDFs with native encryption and decryption, or integrate with customized DRM or IRM security systems. Our technology integrates with Microsoft RMS.

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.

Text Editor

Editing PDF text online is crucial, but many JavaScript-based Web Viewers do not offer this functionality. Foxit’s premium text editing feature ensures you can edit & create new text in PDFs with ease.


Leverage our conversion and verification technology to turn regular PDFs into PDF/A compliant documents. If you are already working with PDF/A in your processes, proactively verify third-party PDFs you receive are PDF/A compliant.

Used everywhere

Trusted by some of the world’s largest companies.

Take a look at who uses our technology.