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Package: pngquant (1.0-4)

PNG (Portable Network Graphics) image optimising utility

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 (http://www.libpng.org/pub/png/pngs-img.html), and the results are often indistinguishable from the original, truecolor PNG images.

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.

Tags: Implemented in: C, User Interface: Command Line, Role: Program, Scope: Utility, Purpose: Compressing, Data Conversion, Works with: Image, Raster Image, Supports Format: PNG, Portable Network Graphics

Other Packages Related to pngquant

  • depends
  • recommends
  • suggests
  • dep: libc0.1 (>= 2.7-1) [kfreebsd-amd64, kfreebsd-i386]
    GNU C Library: Shared libraries
    also a virtual package provided by libc0.1-udeb
  • dep: libc0.3 (>= 2.7-1) [hurd-i386]
    GNU C Library: Shared libraries
    also a virtual package provided by libc0.3-udeb
  • dep: libc6 (>= 2.5-5) [m68k]
    GNU C Library: Shared libraries
    also a virtual package provided by libc6-udeb
    dep: libc6 (>= 2.7-1) [not alpha, hurd-i386, ia64, kfreebsd-amd64, kfreebsd-i386, m68k]
  • dep: libc6.1 (>= 2.7-1) [alpha, ia64]
    GNU C Library: Shared libraries
    also a virtual package provided by libc6.1-udeb
  • dep: libpng12-0 (>= 1.2.13-4)
    PNG library - runtime
  • dep: zlib1g (>= 1:1.1.4)
    compression library - runtime

Download pngquant

Download for all available architectures
Architecture Package Size Installed Size Files
alpha 20.3 kB88 kB [list of files]
amd64 18.6 kB84 kB [list of files]
arm 18.2 kB80 kB [list of files]
armel 18.6 kB80 kB [list of files]
hppa 19.8 kB80 kB [list of files]
hurd-i386 17.7 kB80 kB [list of files]
i386 17.5 kB80 kB [list of files]
ia64 24.7 kB104 kB [list of files]
kfreebsd-amd64 (unofficial port) 18.7 kB58 kB [list of files]
kfreebsd-i386 (unofficial port) 17.7 kB54 kB [list of files]
m68k 17.3 kB80 kB [list of files]
mips 19.1 kB84 kB [list of files]
mipsel 19.1 kB84 kB [list of files]
powerpc 19.0 kB80 kB [list of files]
s390 19.0 kB80 kB [list of files]
sparc 18.3 kB80 kB [list of files]