pngquant - PNG (Portable Network Graphics) image optimising utility

Property Value
Distribution Ubuntu 19.10 (Eoan Ermine)
Repository Ubuntu Universe amd64
Package filename pngquant_2.12.2-1_amd64.deb
Package name pngquant
Package version 2.12.2
Package release 1
Package architecture amd64
Package type deb
Category universe/graphics
License -
Maintainer Ubuntu Developers <>
Download size 18.79 KB
Installed size 62.00 KB
pngquant is a command-line conversion utility to quantize and dither truecolor
PNG images, especially those with a full alpha channel, down to 8-bit (or
smaller) RGBA-palette PNGs. Such images are usually two to four times smaller
than the full 32-bit versions, and partial transparency is preserved quite
nicely. This makes pngquant especially useful both for Web sites and for
PlayStation 2 development, where one of the texture formats is
RGBA-palette-based (though not PNG-compressed).
This is the same technique used for many of the images on the Miscellaneous
Transparent PNGs page (, and
the results are often indistinguishable from the original, truecolor PNG
Optimizers (like pngcrush and optipng) optimize the compression, usually
losslessly, while pngquant quantizes colors down to 256 (or fewer) distinct
RGBA combinations, which is lossy.


Package Version Architecture Repository
pngquant_2.12.2-1_i386.deb 2.12.2 i386 Ubuntu Universe
pngquant - - -


Name Value
libc6 >= 2.14
libimagequant0 >= 2.11.10
libpng16-16 >= 1.6.2-1


Type URL
Binary Package pngquant_2.12.2-1_amd64.deb
Source Package pngquant

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install pngquant deb package:
    # sudo apt-get install pngquant


2018-12-05 - Andreas Tille <>
pngquant (2.12.2-1) unstable; urgency=medium
* New upstream version
Closes: #894891
* Upstream moved source to Github
* cme fix dpkg-control
* debhelper 11
* Build-Depends: libimagequant-dev
* Build-Depends: liblcms2-dev
* Point Vcs fields to Salsa
* New upstream version
* Standards-Version: 4.2.1
* d/rules: enable cross building (thanks for the patch to Helmut Grohne
Closes: #902548, #857175
2017-06-01 - Andreas Tille <>
pngquant (2.5.0-2) unstable; urgency=medium
* Fix CVE-2016-5735 (Thanks for the patch to Emilio Pozuelo
Monfort <>)
Closes: 863469
2015-07-27 - Andreas Tille <>
pngquant (2.5.0-1) unstable; urgency=medium
* New upstream version
* Suppress dh_auto_test since there is no test provided
2014-10-07 - Andreas Tille <>
pngquant (2.3.0-1) unstable; urgency=medium
* New upstream version
* cme fix dpkg-control
* d/copyright: Fix some DEP5 names
* d/rules: cope with hand-written configure script
2014-04-11 - Andreas Tille <>
pngquant (2.1.0-1) unstable; urgency=low
[ Andreas Tille ]
* debian/copyright: Changed e-mail address of upstream as requested
[ Jackson Doak ]
* New upstream release. Closes: #736215
* debian/control: Bump standards-version to 3.9.5
* Use upstream's manpage instead of our own
[ Nelson A. de Oliveira ]
* Pass NDEBUG when building the binary (LP: #1306426)
2013-11-19 - Andreas Tille <>
pngquant (2.0.1-1) unstable; urgency=low
* New upstream version
* debian/watch: Adapt to new homepage
* debian/control:
- moved package to pkg-phototools team
- add myself as Uploader
- New homepage
- cme fix dpkg-control
- debhelper 9
- set Vcs fields to pkg-phototools
* debian/source/format: 3.0 (quilt)
* debian/rules: use dh instead of cdbs
* debian/copyright: DEP5
2011-11-18 - Simon Paillard <>
pngquant (1.0-4.1) unstable; urgency=low
* Non-maintainer upload.
* Fix FTBFS: fix format security (Closes: #643459)
* Fix FTBFS with libpng 1.5: explicit include zlib.h (Closes: #641891)
2008-02-26 - Nelson A. de Oliveira <>
pngquant (1.0-4) unstable; urgency=low
* Fix watch file (Closes: #450009);
* Updated Standards-Version to 3.7.3 (no changes needed);
* Using new Homepage field;
* Updated debhelper compatibility level to 6.
2006-12-07 - Nelson A. de Oliveira <>
pngquant (1.0-3) unstable; urgency=medium
* Added explanation about ncolors on manpage (Closes: #388638);
* New maintainer address;
* Added tags on debian/control;
* Changed to debhelper compatibility level 5;
* Added a space before Homepage: on debian/control;
* Updated Standards-Version to 3.7.2 (no changes needed);
* Medium urgency since it includes documentation fix only.
2005-10-19 - Nelson A. de Oliveira <>
pngquant (1.0-2) unstable; urgency=low
* pngquant is not linked statically to libpng anymore;
* Updated Standards-Version to 3.6.2 (no changes needed);
* Using CDBS now;
* Added watch file;
* Included upstream changelog;
* Updated description.

See Also

Package Description
pngtools_0.4-1.3_amd64.deb series of tools for PNG (Portable Network Graphics) images
pnmixer_0.7.2-1_amd64.deb Simple mixer application for system tray
pnopaste-cli_1.7-1_all.deb Pastebin with syntax highlighting (cli tool)
pnopaste_1.7-1_all.deb Pastebin with syntax highlighting
pnscan_1.12+git20180612-1_amd64.deb Multi threaded port scanner
po4a_0.55-1_all.deb tools to ease the translation of documentation
poa_2.0+20060928-7_amd64.deb Partial Order Alignment for multiple sequence alignment
poc-streamer_0.4.2-4build1_amd64.deb MP3/Ogg multicast/HTTP streamer and MP3 cutting tool
pocillo-icon-theme_0.11.1_all.deb Tango-esque folder icon set called Pocillo
pocketsphinx-en-us_0.8.0+real5prealpha+1-6ubuntu1_all.deb Speech recognition tool - US English language model
pocketsphinx_0.8.0+real5prealpha+1-6ubuntu1_amd64.deb Speech recognition tool
pocl-doc_1.3-3_all.deb documentation for the pocl library
pocl-opencl-icd_1.3-3_amd64.deb pocl ICD
pod2pdf_0.42-5_all.deb Plain Old Documentation to Portable Document Format converter
podget_0.8.5-1_all.deb Podcast aggregrator/downloader optimized for cron