PDFium Library

Project to compile PDFium library to multiple platforms.

Platforms

This project currently compiles to these platforms:

• iOS device (arm64)
• iOS simulator (x86_64, arm64)
• Android (armv7, armv8, x86, x86_64)
• macOS (x86_64, arm64)
• Linux (x86_64)
• Windows (x86_64)
• WASM (Web Assembly)

Obs: PDFium project is from Google and i only patch it to compile to all platforms above. Check all oficial details and PDFium license here:

https://pdfium.googlesource.com/

Web demo

Since this project generate WASM version, i published a demo that you can test PDFium direct on web browser here:

https://pdfviewer.github.io

Or with a public PDF as parameter:

https://pdfviewer.github.io/?title=Demo%20PDF%20with%201MB&url=https://raw.githubusercontent.com/mozilla/pdf.js-sample-files/master/tracemonkey.pdf

Requirements

1. Ninja Build
2. Python 3
3. PIP

Obs: Generally Python 3 already come with PIP installed. Check it with command python3 -m pip --version.

How to compile

These are the general steps that need be executed before all others platforms steps.

1. Get the source:

git clone https://github.com/paulocoutinhox/pdfium-lib.git
cd pdfium-lib

1. Install PIP requirements:

python3 -m pip install -r requirements.txt

1. Get Google Depot Tools:

python3 make.py build-depot-tools
export PATH=$PATH:$PWD/build/depot-tools

Obs:

• The file make.py need be executed with Python version 3.
• These steps you only need make one time.
• If you want change pdfium git branch, edit file modules/config.py and others places with same branch name.

How to compile for iOS

Check tutorial here: Build for iOS

How to compile for macOS (with Apple Silicon - M1)

Check tutorial here: Build for macOS

How to compile for Linux

Check tutorial here: Build for Linux

How to compile for Windows

Check tutorial here: Build for Windows

How to compile for Android

Check tutorial here: Build for Android

How to compile for WASM

Check tutorial here: Build for WASM

Prebuilt binary

Access releases page to download prebuilt binaries:

https://github.com/paulocoutinhox/pdfium-lib/releases

How to include files and extend pdfium

Check tutorial here: How to include files

Buy me a coffee

Support the continuous development of this project.

My other projects

• XPLPC - Cross Platform Lite Procedure Call: https://github.com/xplpc/xplpc
• IonClaw - A cross-platform AI agent orchestrator in C++ that turns any device — including your phone — into a self-contained, multi-agent automation platform: https://github.com/ionclaw-org/ionclaw

License

This license informations is about this personal project, not the Google PDFium Library.

MIT

Copyright (c) 2018-2026, Paulo Coutinho