About:
pngcrush is an excellent batch-mode compression utility for PNG images. Depending on the application that created the original PNGs, it can improve the file size anywhere from a few percent to 40% or more (completely losslessly). The utility also allows specified PNG chunks (e.g. text comments) to be inserted or deleted, and it can fix incorrect gamma info written by Photoshop 5.0 as well as the erroneous iCCP chunk written by Photoshop 5.5.

Author:
Glenn Randers-Pehrson [contact developer]

Rating:	reset 1 2 3 4 5 6 7 8 9 10
8.55/10.00 (3 votes)

Homepage:
http://pmt.sourceforge.net/pngcrush/
Tar/GZ:
http://sourceforge.net/project/showfiles.php?group_id=1689
Tar/BZ2:
http://sourceforge.net/project/showfiles.php?group_id=1689
Zip:
http://sourceforge.net/project/showfiles.php?group_id=1689
Changelog:
http://pmt.sourceforge.net/pngcrush/changelog.html

Trove categories: [change]

[Development Status]		5 - Production/Stable
[Environment]		Console (Text Based)
[License]		OSI Approved, OSI Approved :: zlib/libpng License
[Programming Language]		C
[Topic]		Multimedia :: Graphics :: Graphics Conversion, System :: Archiving :: Compression

Dependencies: [change]
No dependencies filed

 Branches

Branch	Version	Last release	License	URLs
Default	1.6.7	13-Jun-2008	OSI Approved

 Comments

[»] Great program.
by Ivan - Jul 12th 2002 19:37:02

This is excellent.

[reply] [top]

[»] libPNG example
by Stephan Beyer - Jul 29th 2000 12:49:20

I would prefer this as a second libPNG example... Pefect to demonstrate.

ciao

[reply] [top]

[»] makefile?
by Glenn Randers-Pehrson - Dec 8th 1999 18:11:13

Version 1.2.2 will include a rudimentary makefile for people who don't want to type

    gcc -O -o pngcrush *.c

[reply] [top]

[»] Makefile?
by Shaman - Dec 7th 1999 11:37:46

Badly needs a makefile or configure script.

[reply] [top]