MuPDF

Active

Country: United Kingdom (GB)
Founded: 2005
Developer: Artifex Software
Pricing: Free (open-source)
Open source: Yes
Platforms: Windows, macOS, Linux, iOS, Android, Web

Indexes

PDF Tools

Overview

MuPDF is a lightweight, fast PDF and document management library written in C that provides comprehensive functionality for viewing, editing, extracting, converting, and signing PDF documents and other formats. Originally released in 2005, it serves developers and end-users who need efficient document processing capabilities. The software is notable for its portability, minimal dependencies, and support for multiple document formats including PDF, XPS, EPUB, SVG, CBZ, and various image formats.

Key Features

PDF Rendering and Viewing - Fast, accurate rendering of PDF documents with support for annotations and form fields.
Text Extraction - Extract, search, and highlight text content from documents with OCR capabilities via integrated Tesseract engine.
Document Conversion - Convert pages to popular image formats (PNG, JPG, TIFF) and other vector formats.
PDF Manipulation - Merge, split, encrypt, decrypt, compress, and repair PDF documents with support for linearization and incremental updates.
Annotation and Form Support - Add, maintain, edit, and delete annotations and interactive form fields within documents.
Content Extraction - Extract images, vector graphics, and structured content from documents.
Page Editing - Create, delete, reorder, and modify pages; insert or remove text, images, and vector graphics.
Digital Signing - Sign PDF documents with cryptographic support.
Multi-Format Support - Handle diverse document formats including EPUB, XPS, SVG, CBZ, MOBI, FB2, and numerous image formats.
Redaction - Remove sensitive text, images, or graphics via redaction tools.

Pricing

Plan	Price	Includes
Open Source (Core Library)	Free	Full access to MuPDF C library source code, all core features for PDF and document processing, community support.
Commercial License	Contact for pricing	Commercial use rights, priority support, custom development options.
MuPDF.NET (C# Binding)	Free	C#, F#, and Visual Basic bindings for .NET developers, NuGet package distribution, same features as PyMuPDF.

Platforms & Requirements

MuPDF runs on Windows, macOS, Linux, iOS, and Android, with web-based viewers available. The C library is lightweight and portable with minimal dependencies, making it suitable for embedded systems and resource-constrained environments. Platform-specific implementations include native mobile apps and command-line tools; the MuPDF viewer on Android is a slim read-only version focused on document viewing without annotation editing.

Integrations & Ecosystem

PyMuPDF (Python bindings)
MuPDF.NET (C# bindings)
Command-line tools for batch processing
REST API for document conversion
Tesseract OCR engine integration
NuGet package manager (.NET)
Native iOS and Android SDKs
Document format import/export (PDF, XPS, EPUB, SVG, CBZ, image formats)

Alternatives

App	Difference
PDFium	Google's PDF rendering engine; more tightly integrated with Chromium but less versatile for document manipulation tasks.
Apache PDFBox	Java-based library with strong PDF manipulation capabilities; heavier footprint and less suitable for embedded systems.
Poppler	Unix-focused PDF rendering library; less portable across platforms and fewer document format options than MuPDF.
iText	Commercial PDF library with strong form-filling and signing features; significantly more expensive for commercial use.

Reputation

MuPDF is widely respected in the developer community for its speed, efficiency, and minimal resource requirements, making it a preferred choice for embedded and resource-constrained applications. Its open-source nature and comprehensive format support have earned it a strong reputation among PDF processing professionals. Some users note occasional performance issues in specific edge cases and report that documentation could be more extensive. The library is considered production-ready and is used in numerous commercial and open-source projects worldwide.

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