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Home/Categories/Developer Tools/MuPDF
icon of MuPDF

MuPDF

Open source alternative to Apryse PDF SDK, Foxit PDF SDK and Adobe PDF Services API

  • 3K stars
  • AGPL-3.0
  • Active this week
  • Last commit 1 day ago

Last verified Oct 20, 2026

Render and process PDF, XPS, and EPUB files in apps that need fast embedded viewing, conversion, and extraction.

Visit websiteGitHub3K stars
image of MuPDF
TL;DR

MuPDF is a document rendering and processing toolkit for PDF, XPS, EPUB, and related formats. It replaces heavier PDF SDKs or viewers for developers who need fast embedded rendering, conversion, or extraction. AGPL-3.0 licensed, with commercial licensing available from Artifex.

Read the full breakdownHide the full breakdownWho it is for, how it works, trade-offs and the FAQ
who it's for

Who MuPDF is for#

Developers embedding PDF previews

Use MuPDF when an application needs fast local document previews or rendering without launching an external PDF reader.

Skip if:

You need a no-code document management product for business users.

Backend teams converting documents

Use MuPDF for server-side document rendering or conversion pipelines where files should stay under your control.

Skip if:

Your legal team cannot accept AGPL terms and no commercial license is available for your use case.

the problem

The problem it solves#

Applications that display or process documents need reliable rendering without shipping a full desktop reader. PDF and ebook formats are complex, and poor rendering creates support issues, broken previews, and unreliable conversion pipelines.

Developers often face a tradeoff between paid SDKs, external conversion services, and large dependencies. A compact rendering toolkit can be a better fit when document handling must live inside an app or service.

how MuPDF solves it

How it solves it#

Embedded document rendering

MuPDF is designed as a rendering toolkit, making it suitable for apps that need to display documents inside their own interface.

Multiple document formats

The project covers PDF plus related document and ebook formats, reducing the need for separate renderers in some applications.

Processing and conversion tools

MuPDF supports document processing workflows such as rendering pages, extracting content, and converting documents for downstream use.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Strong fit for embedded viewersMuPDF is useful when document rendering is a feature inside another product rather than the whole product.
  • Clear dual-licensing pathAGPL licensing supports open deployments, while commercial licensing gives companies another path when AGPL obligations do not fit their product.

Trade-offs

  • -License choice mattersTeams embedding MuPDF in proprietary products need to review AGPL obligations and commercial licensing options before adoption.
tech stack · detected from GitHub

What it's built on#

Languages
CJavaPythonTypeScript
frequently asked

FAQ#

Is MuPDF a PDF viewer or a library?

MuPDF is both a lightweight viewer and a toolkit for rendering and processing documents in applications.

What formats does MuPDF handle?

MuPDF focuses on PDF and related document formats such as XPS and EPUB. Teams should verify exact format support for their workload.

Can proprietary apps use MuPDF?

Proprietary use requires careful license review. MuPDF is AGPL-3.0 in the public repository, and Artifex offers commercial licensing.

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