1\
2.\" This man page was generated by the Netpbm tool 'makeman' from HTML source.
3.\" Do not hand-hack it!  If you have bug fixes or improvements, please find
4.\" the corresponding HTML page on the Netpbm website, generate a patch
5.\" against that, and send it to the Netpbm maintainer.
6.TH "Pamsplit User Manual" 0 "11 August 2011" "netpbm documentation"
7
8.SH NAME
9
10pamsplit - split a multi-image Netpbm file into single-image files
11
12.UN synopsis
13.SH SYNOPSIS
14
15\fBpamsplit\fP
16
17[\fInetpbmfile\fP
18
19[\fI output_file_pattern\fP]]
20
21[\fB-padname=\fP\fIn\fP]
22.PP
23Minimum unique abbreviation of option is acceptable.  You may use double
24hyphens instead of single hyphen to denote options.  You may use white
25space in place of the equals sign to separate an option name from its value.
26
27
28.UN description
29.SH DESCRIPTION
30.PP
31This program is part of
32.BR "Netpbm" (1)\c
33\&.
34.PP
35\fBpamsplit\fP reads a PNM or PAM stream as input.  It copies each image
36in the input into a separate file, in the same format.
37.PP
38\fInetpbmfile\fP is the file name of the input file, or
39\fB-\fP to indicate Standard Input.  The default is Standard Input.
40.PP
41\fIoutput_file_pattern\fP tells how to name the output files.  It
42is the file name of the output file, except that the first
43occurrence of "%d" in it is replaced by the image sequence
44number in unpadded ASCII decimal, with the sequence starting at 0.  If
45there is no "%d" in the pattern, \fBpamsplit\fP fails.
46.PP
47The default output file pattern is "image%d".
48.PP
49The \fB-padname\fP option specifies to how many characters you
50want the image sequence number in the output file name padded with
51zeroes.  \fBpamsplit\fP adds leading zeroes to the image sequence
52number to get up to at least that number of characters.  This is just
53the number of characters in the sequence number part of the name.  For
54example, \f(CWpamsplit - outputfile%d.ppm -padname=3\fP would yield
55output filenames \fBoutputfile000.ppm\fP, \fBoutputfile001.ppm\fP,
56etc.
57.PP
58The default is no padding (equivalent to \fB-padname=0\fP).
59.PP
60The \fB-padname\fP option was new in Netpbm 10.23 (July 2004).
61Before that, there was never any padding.
62.PP
63Note that to do the reverse operation (combining multiple
64single-image Netpbm files into a multi-image one), there is no special
65Netpbm program.  Just use \fBcat\fP.
66.PP
67If you just want to find out basic information about the images in a
68stream, you can use \fBpamfile\fP on the stream.
69.PP
70To extract images from a stream and generate a single stream containing
71them, use \fBpampick\fP.
72.PP
73To run a program on each image in a stream without the hassle of temporary
74files, use \fBpamexec\fP.
75
76
77.UN seealso
78.SH SEE ALSO
79.BR "pamfile" (1)\c
80\&,
81.BR "pampick" (1)\c
82\&,
83.BR "pamexec" (1)\c
84\&,
85.BR "pnm" (5)\c
86\&,
87.BR "pam" (5)\c
88\&,
89\fBcat\fP man page
90.SH DOCUMENT SOURCE
91This manual page was generated by the Netpbm tool 'makeman' from HTML
92source.  The master documentation is at
93.IP
94.B http://netpbm.sourceforge.net/doc/pamsplit.html
95.PP