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+\
+.\" This man page was generated by the Netpbm tool 'makeman' from HTML source.
+.\" Do not hand-hack it! If you have bug fixes or improvements, please find
+.\" the corresponding HTML page on the Netpbm website, generate a patch
+.\" against that, and send it to the Netpbm maintainer.
+.TH "Ppmlabel User Manual" 0 "15 April 2006" "netpbm documentation"
+
+.SH NAME
+ppmlabel - add text to a PPM image
+
+.UN synopsis
+.SH SYNOPSIS
+
+\fBppmlabel\fP
+
+[\fB-angle\fP \fIangle\fP]
+
+[\fB-background\fP { \fBtransparent\fP | \fIcolor\fP } ]
+
+[\fB-color\fP \fIcolor\fP]
+
+[\fB-file\fP \fIfilename\fP]
+
+[\fB-size\fP
+
+\fItextsize\fP]
+
+[\fB-text\fP \fItext_string\fP]
+
+[\fB-x\fP \fIcolumn\fP]
+
+[\fB-y\fP \fIrow\fP]
+
+\&...
+
+[\fIppmfile\fP]
+
+
+.UN example
+.SH EXAMPLE
+
+.nf
+\f(CW
+ ppmlabel -x 50 -y 50 -text hello \e
+ -angle -30 -text there \e
+ testimg.ppm
+\fP
+
+.fi
+
+.UN description
+.SH DESCRIPTION
+.PP
+This program is part of
+.BR "Netpbm" (1)\c
+\&.
+.PP
+\fBppmlabel\fP uses the text drawing facilities of \fBlibnetpbm\fP's
+"ppmd" component to add text to a PBM image. You control
+the location, size, baseline angle, color of the text, and background
+color (if any) with command line arguments. You can specify the text
+on the command line or supply it in files.
+.PP
+You can add any number of separate labels in a single invocation of
+\fBppmlabel\fP, limited only by any restrictions your environment has
+on the number and size of program arguments (e.g. a shell's command
+size limit).
+.PP
+If you don't specify \fIppmfile\fP, \fBppmlabel\fP reads its input
+PPM image from Standard Input.
+.PP
+The output image goes to Standard Output.
+.PP
+A more sophisticated way to add a label to an image is to use
+\fBpbmtext\fP or \fBpbmtextps\fP to create an image of the text, then
+\fBpamcomp\fP to overlay it onto the base image.
+.PP
+Another more general program is \fBppmdraw\fP. It is slightly harder
+to use for simple labelling.
+
+.UN options
+.SH OPTIONS
+.PP
+In addition to the options common to all programs based on libnetpbm
+(most notably \fB-quiet\fP, see
+.UR index.html#commonoptions
+ Common Options
+.UE
+\&), \fBppmlabel\fP recognizes the following
+command line options:
+.PP
+The arguments on the \fBppmlabel\fP command line are not options in
+the strict sense; they are commands which control the placement and
+appearance of the text being added to the input image. They are
+executed left to right, and any number of arguments may appear.
+.PP
+You can abbreviate any option to its shortest unique prefix.
+
+
+.TP
+\fB-angle\fP\fI angle\fP
+This option sets the angle of the baseline of subsequent text.
+\fIangle\fP is an integral number of degrees, measured
+counterclockwise from the row axis of the image.
+
+.TP
+\fB-background\fP { \fBtransparent\fP | \fIcolor\fP }
+If the argument is \fBtransparent\fP, \fBppmlabel\fP draws the
+text over the existing pixels in the image. If you specify a
+\fIcolor\fP (see the \fB-color\fP option below for information on
+how to specify colors), \fBppmlabel\fP generates background rectangles
+enclosing subsequent text, and those rectangles are filled with that
+color.
+
+.TP
+\fB-color\fP \fIcolor\fP
+This option sets the color for subsequent text.
+.sp
+Specify the color (\fIcolor\fP) as described for the
+.UR libnetpbm_image.html#colorname
+argument of the \fBpnm_parsecolor()\fP library routine
+.UE
+\&.
+.sp
+\fB-colour\fP is an acceptable alternate spelling.
+
+.TP
+\fB-file\fP \fIfilename\fP
+This option causes \fBppmlabel\fP to read lines of text from the file
+named \fIfilename\fP and draw it on successive lines.
+
+.TP
+\fB-size\fP \fItextsize\fP
+This option sets the height of the tallest characters above the
+baseline to \fItextsize\fP pixels.
+
+.TP
+\fB-text\fP \fItext_string\fP
+This option causes \fBppmlabel\fP to draw the specified text
+string. It advances the location for subsequent text down 1.75 times
+the current \fItextsize\fP. That lets you draw multiple lines of
+text in a reasonable manner without specifying the position of each
+line.
+.sp
+Note that if you invoke \fBppmlabel\fP via a shell command and your
+text string contains spaces, you'll have to quote it so the shell treats
+the whole string as a single token. E.g.
+.nf
+ $ ppmlabel -text "this is my text" baseimage.ppm >annotatedimage.ppm
+
+.fi
+
+
+.TP
+\fB-x\fP \fIcolumn\fP
+This option sets the pixel column at which subsequent text will
+be left justified. Depending on the shape of the first character, the
+actual text may begin a few pixels to the right of this point.
+
+.TP
+\fB-y\fP \fIrow\fP
+This option sets the pixel row which will form the baseline of
+subsequent text. Characters with descenders, such as "y," will extend
+below this line.
+
+
+
+.UN limitations
+.SH LIMITATIONS
+.PP
+Text strings are restricted to 7 bit ASCII. The text font used by
+\fBppmlabel\fP doesn't include definitions for 8 bit ISO 8859/1 characters.
+.PP
+When drawing multiple lines of text with a non-transparent
+background, it should probably fill the space between the lines with
+the background color. This is tricky to get right when the text is
+rotated to a non-orthogonal angle.
+
+.UN seealso
+.SH SEE ALSO
+.BR "ppmmake" (1)\c
+\&,
+.BR "ppmdraw" (1)\c
+\&,
+.BR "pbmtext" (1)\c
+\&,
+.BR "pbmtextps" (1)\c
+\&,
+.BR "pamcomp" (1)\c
+\&,
+.BR "ppm" (5)\c
+\&
+
+
+.UN author
+.SH AUTHOR
+
+Copyright (C) 1995 by John Walker (\fIkelvin@fourmilab.ch\fP)
+WWW home page:
+.UR http://www.fourmilab.ch/
+http://www.fourmilab.ch/
+.UE
+\&
+.PP
+Permission to use, copy, modify, and distribute this software and
+its documentation for any purpose and without fee is hereby granted,
+without any conditions or restrictions. This software is provided
+``as is'' without express or implied warranty.
+.SH DOCUMENT SOURCE
+This manual page was generated by the Netpbm tool 'makeman' from HTML
+source. The master documentation is at
+.IP
+.B http://netpbm.sourceforge.net/doc/ppmlabel.html
+.PP \ No newline at end of file