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.IX Title "apngdis 1"
.TH apngdis 1 2024-03-09 "apngdis" "User Commands"
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.SH NAME
apngdis \- deconstruct APNG file into a sequence of PNG frames
.SH SYNOPSIS
.IX Header "SYNOPSIS"
apngdis filename.png [name]
.SH DESCRIPTION
.IX Header "DESCRIPTION"
Extract invividual PNG files from animated PNG.
.PP
After editing PNG frames in programs like Photoshop or GIMP, you can
assemle files back into APNG using \fBapngasm\fR\|(1). Crrectly handles all
blend/dispose combinations, in all color modes/depths.
.PP
Some optimizations used in \fBapngasm\fR\|(1) might re-sort the palette,
or change the color type from RGBA and RGB modes to RGB and indexed
modes. Those optimizations are only performed when they are lossless,
but if you want to avoid changing the palette or colortype, see
options to turn them off.
.PP
The Animated Portable Network Graphics (APNG) file format is an
extension to the Portable Network Graphics (PNG) specification. It
allows for animated PNG files that work similarly to animated GIF
files, while retaining backward compatibility with non-animated PNG
files and adding support for 8\-bit transparency and 24\-bit images.
.SH OPTIONS
.IX Header "OPTIONS"
None.
.SH ENVIRONMENT
.IX Header "ENVIRONMENT"
None.
.SH FILES
.IX Header "FILES"
None.
.SH STANDARDS
.IX Header "STANDARDS"
APNG Specification: https://wiki.mozilla.org/APNG_Specification
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBapngasm\fR\|(1)
\&\fBapngopt\fR\|(1)
\&\fBapng2gif\fR\|(1)
\&\fBgif2apng\fR\|(1)
\&\fBgifsicle\fR\|(1)
\&\fBgifview\fR\|(1)
\&\fBoptipng\fR\|(1)
\&\fBpngcheck\fR\|(1)
pngcrush
\&\fBpnginfo\fR\|(1)
\&\fBpngnq\fR\|(1)
\&\fBpngquant\fR\|(1)
.SH AUTHORS
.IX Header "AUTHORS"
Program was written by Max Stepi <maxst@users.sourceforge.net>
.PP
This manual page was written by Jari Aalto <jari.aalto@cante.net>.
Released under license GNU GPL version 2 or (at your option) any later
version. For more information about license, visit
<http://www.gnu.org/copyleft/gpl.html>.
.PP
This manual page was updated by xiao sheng wen <atzlinux@sina.com> on Jul 2022.