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.IX Title "apng2gif 1"
.TH apng2gif 1 "2021-02-11" "apng2gif" "User Commands"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
apng2gif \-  convert APNG animated images to GIF files
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  apng2gif <INPUT *.png> <OUTPUT *.gif> [options]
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Progrmam apng2gif converts \s-1APNG\s0 into animated \s-1GIF\s0 format.
.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.
.PP
Default run values are /t 128, no background color. A short syntax hlp
is provided without any command line arguments.
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB/b \s-1COLOR\s0\fR" 4
.IX Item "/b COLOR"
Background blend color. Format: #RGB in hex, like #808080, or three
values in decimal. Like: 128 128 128. If this option is used, option
\&\fB/t\fR is ignored
.Sp
With option:
.Sp
.Vb 2
\& /b #ff0000   or
\& /b 255 0 0
.Ve
.Sp
will set the background color as red, so partially transparent pixels
will be composed over red.
.IP "\fB/t \s-1LEVEL\s0\fR" 4
.IX Item "/t LEVEL"
Transparency threshold level between 0..155. Default is 128. pixels
with alpha level less than 128 will become fully transparent.
.SH "ENVIRONMENT"
.IX Header "ENVIRONMENT"
None.
.SH "FILES"
.IX Header "FILES"
None.
.SH "STANDARDS"
.IX Header "STANDARDS"
\&\s-1APNG\s0 homepage http://animatedpng.com
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\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>.