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.\"
.IX Title "apngdis 1"
.TH apngdis 1 "2023-04-13" "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 \s-1PNG\s0 files from animated \s-1PNG.\s0
.PP
After editing \s-1PNG\s0 frames in programs like Photoshop or \s-1GIMP,\s0 you can
assemle files back into \s-1APNG\s0 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 \s-1RGBA\s0 and \s-1RGB\s0 modes to \s-1RGB\s0 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 (\s-1APNG\s0) file format is an
extension to the Portable Network Graphics (\s-1PNG\s0) specification. It
allows for animated \s-1PNG\s0 files that work similarly to animated \s-1GIF\s0
files, while retaining backward compatibility with non-animated \s-1PNG\s0
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"
\&\s-1APNG\s0 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 \s-1GNU GPL\s0 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.