MuPDF

MuPDF is a free and open-source software framework written in C that implements a PDF, XPS, and EPUB parsing and rendering engine. It is used primarily to render pages into bitmaps, but also provides support for other operations such as searching and listing the table of contents and hyperlinks.

MuPDF
Original author(s)Tor Andersson
Developer(s)Artifex Software, Inc.
Initial release31 March 2005 (2005-03-31)
Stable release
1.18.0 / October 7, 2020 (2020-10-07)[1]
Repository
Written inC
Operating systemUnix-like, Windows, Android, iOS
TypeFramework
Licensedual-licensed (GNU Affero General Public License and commercial permissive license)
Websitemupdf.com

The focus of MuPDF is on speed, small code size, and high-quality anti-aliased rendering. Since the 1.2 release, MuPDF has optional support for interactive features such as form filling, JavaScript and transitions.[2]

The library ships with a rudimentary X11 and Windows viewer, and a set of command-line tools for batch rendering (mutool draw), examining the file structure (mutool show), and rewriting files (mutool clean). Later versions also have a JavaScript interpreter (mutool run) that allows for running scripts to create and edit PDF files.

A number of free software applications use MuPDF to render PDF documents, the most notable being Sumatra PDF. MuPDF is also available as a package for most Unix-like operating system distributions.

Independent parties have ported the library to many platforms, including the Amazon Kindle,[3] HP TouchPad,[4] PlayStation Portable,[5] Wii,[6] and DOS.[7]

History

In 2002, Tor Andersson started work on MuPDF based on the Libart rendering library by Raph Levien. After Artifex Software acquired the MuPDF project, the development focus shifted on writing a new modern graphics library called Fitz. Fitz was originally intended as an R&D project to replace the aging Ghostscript graphics library, but has instead become the rendering engine powering MuPDF.[8]

In 2005, the first version of MuPDF with the new Fitz library was released.

In 2009, Artifex Software filed a copyright infringement lawsuit against Palm, Inc. for violating their copyrights on MuPDF.[9] At that time Artifex offered MuPDF dual-licensed, either under GPLv2 or under an proprietary license meant by Artifex for commercial use. When Palm included MuPDF in webOS and complied with GPLv2 by releasing the changed source code of the library,[10][11] Artifex claimed that the GPL version would be unsuitable for "commercial use"[12] as the complete, aggregated product (PDFviewer, WebOS) would have to be placed under GPL.[13] Artifex voluntarily dismissed the suit in 2011.[14]

In 2011, support for Microsoft's XPS was added, based on code from the GhostXPS library.[2]

Since February 2013, with the 1.2 release, licensing terms have changed from GNU General Public License to GNU Affero General Public License v3.[2]

See also

References
  1. "MuPDF Release History". Retrieved 31 January 2021.
  2. "MuPDF News". Mupdf.com. Retrieved 3 January 2017.
  3. "muPDF on Kindle DX!! - MobileRead Forums". Mobileread.com. Retrieved 3 January 2017.
  4. "Archived copy". Archived from the original on 5 November 2011. Retrieved 25 November 2011.CS1 maint: archived copy as title (link)
  5. "ozbookr". code.google.com. Retrieved 6 May 2018.
  6. "WiiXplorer". sourceforge.net. Retrieved 6 May 2018.
  7. "DOS ain't dead - MUPDF/DGJPP test release!". Bttr-software.de. Retrieved 3 January 2017.
  8. "fitz-dev mailing list archives". ghostscript.com. Retrieved 6 May 2018.
  9. "December 4, 2009 - Artifex files suit against Palm". Artifex.com. 4 December 2009. Archived from the original on 18 February 2013. Retrieved 3 January 2017.
  10. "Copyright Infringement Lawsuit Filed Against Palm". webOS Nation. Retrieved 3 January 2017.
  11. "Open Source Packages - opensource.palm.com - Palm". 16 December 2009. Archived from the original on 16 December 2009. Retrieved 3 January 2017.
  12. "Complaint for Copyright Infringement" (PDF). p.4 ¶15, p.6 ¶27. Retrieved 3 May 2013.
  13. Licensing Information IMPORTANT INFORMATION ABOUT DISTRIBUTING SOFTWARE FROM ARTIFEX "If your application, including all of its source code, is licensed to the public under the GNU GPL, you are authorized to ship GPL Ghostscript with your application under the terms of the GPL license agreement. You do not need a commercial license from Artifex." (archived)
  14. "Notice of Voluntary Dismissal With Prejudice" (PDF). Archive.org. Retrieved 3 May 2013.
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