Embedded PDF SDK · Web, Mobile & Server

Ship Document Features in Days, Not Quarters.

Foxit PDF SDKs bring viewing, editing, signing, and high-volume processing into your application with one integration.

Free 30-day trial. No credit card required. Full SDK access across web, mobile, and server.

Trusted by 700M+ users and 640,000+ organizations worldwide

Proven Technology

The PDF Engine The Industry Runs on Started Here.

The open-source PDF engine inside Google Chrome, Microsoft Edge, and countless other applications was derived from Foxit's technology. Foxit's commercial SDK shares that same underlying engine — maintained and extended for production use.

Build on the lineage that set the standard for PDF rendering, not a downstream copy of it.

Billions

Documents rendered daily

25+ yrs

PDF rendering heritage

Powers the browsers you use

ChromeEdgeBraveOperaVivaldiArc

What You Can Build

From A Blank Page to A Document-powered Product.

Foxit SDKs give your product the document capabilities your users expect, without pulling your team off the roadmap to build them. Here is what your application can do once Foxit is embedded.

Let users view and mark up documents in your app

Embed high-fidelity viewing, annotation, and markup directly in your web, mobile, or desktop product. Documents render the way they were authored, with fonts, forms, and signatures intact. Your users never leave your application to work with a file.

Turn manual paperwork into digital workflows

Give your product fillable, submittable forms, with data flowing straight into your systems. Replace printed forms and manual re-entry with document workflows your users complete in-app.

Process documents at scale on the server

Run conversion, OCR, compression, and document generation server-side, at volume, with no person in the loop. Handle thousands of incoming documents automatically inside your own infrastructure.

Why Foxit SDK

Built for Teams Shipping Document Features to Production.

Choosing an embedded SDK is a long-term decision. It shapes your rendering quality, your team's velocity, your security posture, and your total cost of ownership. Here is why engineering teams choose Foxit.

Foxit's technology produced the open-source engine now running inside Chrome, Edge, and applications across the industry. You build on rendering technology proven on billions of real-world documents, including the edge cases that break lesser libraries.
Building PDF rendering in-house is a multi-year commitment that never stops needing maintenance. With Foxit, a working integration takes days. Your team ships the document feature and owns none of the engine upkeep, spec tracking, or security patching that comes with building it yourself.
Foxit SDKs are embedded libraries, not cloud services. Documents are processed inside your application and infrastructure, with nothing sent to external servers. For regulated industries, sensitive content stays in your controlled environment. Foxit holds SOC 2 Type 2 certification and supports HIPAA, GDPR, TAA, Section 508, and FINRA requirements.
A single unified SDK covers web, mobile, desktop, and server with a consistent API surface. Your team learns it once and applies it everywhere. One vendor, one license relationship, one integration to maintain as your product grows.

The engine behind the standard

Foxit's technology produced the open-source engine now running inside Chrome, Edge, and applications across the industry. You build on rendering technology proven on billions of real-world documents, including the edge cases that break lesser libraries.

Industry Solutions

Built for The Industries That Run on Documents.

Foxit SDKs are deployed across industries where document accuracy, security, and compliance are non-negotiable.

Engineering

Embed viewing, annotation, and redline markup so engineers review, mark up, and approve technical drawings without leaving your platform.

Explore Engineering

Insurance

Embed form handling, digital signatures, and secure archival into your claims and policy systems, so policy and claims documents get filled, signed, and stored in-app.

Explore Insurance

Banking

Embed secure processing into banking applications, with encryption, redaction, and signature support built to financial-grade standards for loan applications, agreements, and disclosures.

Explore Banking

Document Management

Give your platform full-fidelity viewing, OCR for scanned files, and structured data extraction, so users find, read, and act on any document instantly.

Explore Document Management

Compliance

Support PDF/A archival, permanent redaction, and signatures with full certificate validation, so your compliance documentation holds up under scrutiny.

Explore Compliance

Healthcare

Embed HIPAA-ready processing into healthcare applications, with PHI redaction, secure signature capture, and Section 508 accessibility for patient records and consent forms.

Explore Healthcare

Customer Success

Teams Building Real Products on Foxit SDK.

"I chose Foxit since it worked, was affordable, and uniquely accommodated to my business needs and business model. Foxit provided more sophisticated technology that enabled me to do things the others could not."

Winston Chen

Founder, VoiceDream

"Users can easily access any meeting documentation, no matter if they are at the office or on the road. Board members can now be confident that their information is highly secure."

Frank Becker

Chief Technology Officer, Loomion

"With the attention already being there, for a product still in prototype stage at that time, Foxit SDK was our hero to help implement a first fully functional product in a short period of time."

Oliver Grahl

Owner, Grahl Software Design

700M+

Users worldwide

640K+

Companies

25+

Years of PDF innovation

4.6/5

on G2

4.7/5

on Gartner Peer Reviews

Compliance & Certifications

SOC 2 Type 2

HIPAA Ready

GDPR Support

TAA Compliant

Section 508

FINRA Support

PDF/A

21 CFR Part 11

View security and compliance details

FAQ

PDF SDK Questions, Answered

What is a PDF SDK?

A PDF SDK is an embedded software library that adds document features — viewing, editing, annotating, signing, converting, and processing — directly inside your application. Because the SDK runs inside your own runtime, documents stay in your environment instead of being sent to a third-party service.

Which platforms and languages does Foxit PDF SDK support?

Foxit PDF SDK supports web (JavaScript with React, Angular, and Vue), mobile (iOS in Swift and Objective-C, Android in Java and Kotlin, plus React Native and Flutter), and server and desktop (Windows, Linux, and macOS in C++, C#, and Java). One unified SDK covers every platform, so your team's knowledge transfers across the entire stack.

Is document data secure when using Foxit PDF SDK?

Yes. Foxit PDF SDK is an embedded library, so all document processing happens locally inside your application and infrastructure — files are never sent to Foxit servers. Foxit is SOC 2 Type 2 certified and supports HIPAA, GDPR, TAA, Section 508, and FINRA requirements with auditable documentation.

What is the difference between Foxit PDF SDK and Foxit PDF APIs?

The SDK is an embedded library that ships inside your application and runs in your environment. Foxit PDF APIs are hosted REST endpoints for teams who want document processing as a cloud service. Choose the SDK when documents must stay in your own infrastructure; choose the APIs when a hosted service is preferred.

How does Foxit PDF SDK compare to open-source PDF libraries?

Open-source libraries can get a prototype running, but leave the hardest problems — rendering edge cases, standards compliance, ongoing maintenance, and security patching — to your team. Foxit handles all of that with dedicated engineering support, documented compliance, and regular releases. Most teams find that maintaining an open-source PDF layer costs more than a commercial SDK within one to two years.

How long does it take to integrate Foxit PDF SDK?

Most developers have a working document viewer running within an hour of downloading the SDK. A full proof-of-concept covering platform setup and core use cases typically takes one to three days. Foxit sales engineers are available throughout evaluation to help scope the integration.

Can the Foxit PDF SDK UI be customized?

Yes. Foxit PDF SDK ships with UI components that can be themed, rebranded, and reconfigured to match your application — including custom toolbars and pared-down interfaces that expose only the document functions your users need. Lower-level APIs are available for teams that want to build fully custom document interfaces.

How is Foxit PDF SDK licensed?

Foxit PDF SDK is licensed per deployment model and platform, with predictable pricing that scales with your product and no hidden renewal fees. Every SDK starts with a free 30-day trial that includes full functionality and no credit card, after which a Foxit specialist scopes the right production license.

Sending this to your engineering team?

Point them to the full technical documentation, API reference, platform guides, and live code samples.

Explore the developer docs

Get Started

See What Foxit SDKs Can Do for Your Product.

Talk to a specialist who can walk you through capabilities, answer security and compliance questions, and help scope the right integration for your team. Or start a free 30-day trial with full SDK access.