PNG - Ideas to Integrated Circuits

PNG-supporting Image-Conversion Applications
Image-Conversion Applications with PNG Support
Many of the image-conversion applications listed here are also image viewers and are therefore listed on
the PNG-supporting image-viewer page as well. Note also that image editors often have the ability to
import and export many formats. Finally, not all of these applications convert both to and from the PNG
format; the "read-only," "write-only" and "read/write" comments indicate the type of PNG support.
As on the other applications pages, links to home WWW sites or to downloadable versions are provided
where known, but if a link is broken, check the location and see if an updated version is available (and
please tell Greg!). Relevant operating systems are printed in (parenthesized italics), where "many" is
defined as at least three of Unix, OS/2, Win32, DOS, Mac OS, etc.
These are listed alphabetically, more or less:
● 2PNG [fCoder Group] (Win32) - all versions; read/write? full alpha support (including palette
and 64-bit modes as of version 4.2); gamma support as of version 4.2; MNG and JNG support
(read-only) as of version 2.0; commercial. (This is a non-graphical batch converter from various
formats to PNG. The company sells other batch converters with read-only PNG support. See also
ImageConverter Plus below.)
● ACDSee32 [ACD Systems] (Win32) - version 1.0 beta 3 and later; read/write (read-only prior to
version 3.0); full gamma support; progressive display of interlacing (sparse method); broken
grayscale+alpha support; ignores background chunk; version 3.0 writes PNGs with no IEND
chunk (fixed in 3.1); commercial. (This was formerly known as ACDSee 95.)
● Adobe File Utilities by Mastersoft - see Quick View Plus on the image viewers page
● AdvanceCOMP [Andrea Mazzoleni et al.] (DOS, Win32, Linux) - version 1.2 and later; read/
write; MNG support; freeware (GPL) with source. (This is now a dedicated set of recompression
utilities [optimizers], originally part of the AdvanceSCAN "command-line ROM manager" for
various MAME game-engine implementations. It includes AdvancePNG and AdvanceMNG [or
advpng and advmng], the latter of which is capable of splitting PNGs out of a MNG animation
[as of version 1.6] and of converting a sequence of PNG images back into a single MNG [as of
version 1.9]. advpng originally was called zpng and was part of the AdvanceMAME game
emulator. Note that, as of version 1.9, it apparently still works only on non-interlaced palette,
RGB, and RGBA PNGs [i.e., no grayscale, gray+alpha, or interlaced].)
http://libpng.org/pub/png/pngapcv.html (1 of 23)10/23/06 12:47 PM