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1 perry 1 pstopnm
2 !!!pstopnm
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 BUGS
8 SEE ALSO
9 COPYRIGHT
10 AUTHOR
11 ----
12 !!NAME
13
14
15 pstopnm - convert a !PostScript file into a portable anymap
16 !!SYNOPSIS
17
18
19 __pstopnm__ [[__-stdout__] [[__-forceplain__]
20 [[__-help__] [[__-llx__ ''s''] [[__-lly__ ''s'']
21 [[__-landscape__] [[__-portrait__] [[__-nocrop__]
22 [[__-pbm__ |__-pgm__ |__-ppm__] [[__-urx__
23 ''s''] [[__-ury__ ''s''] [[__-verbose__]
24 [[__-xborder__ ''n''] [[__-xmax__ ''n'']
25 [[__-xsize__ ''f''] [[__-yborder__ ''f'']
26 [[__-ymax__ ''n''] [[__-ysize__ ''n'']
27 ''psfile''[[__.ps__]
28 !!DESCRIPTION
29
30
31 Reads a !PostScript file as input. Produces PBM, PGM, or PPM
32 files as output. This program simply uses __!GhostScript__
33 to render a !PostScript file with its PNM device drivers. If
34 you don't have __!GhostScript__ installed (invoked by a
35 __gs__ command), or the version you have installed was
36 not built with the relevant PNM device drivers,
37 __pstopnm__ will fail. You can see if you have the proper
38 environment by issuing the command __gs --help__ . If it
39 responds and lists under
40 __pbm__, __pbmraw__, __pgm__, __pgmraw__,
41 __pnm__, __pnmraw__, __ppm__, or __ppmraw__,
42 you're in business.
43
44
45 __pstopnm__ does not use the Netpbm libraries to generate
46 the output files, so may not be entirely consistent with
47 most Netpbm programs.
48
49
50 ''psfile''[[__.ps__] is the name of the input file.
51 __.pstopnm__ will add the __ps__ to the end of the
52 name you specify if no file exists by the exact name you
53 specify, but one with added does. Use __-__ to indicate
54 Standard Input.
55
56
57 If you use the __-stdout__ option, __pstopnm__ outputs
58 images of all the pages as a multi-image file to Standard
59 Output. Otherwise, __pstopnm__ creates one file for each
60 page in the Postscript document. The files are named as
61 follows: If the input file is named __psfile.ps__, the
62 name of the files will be __psfile001.ppm__,
63 __psfile002.ppm__, etc. The filetype suffix is
64 __.ppm__, __.pgm__, or __.pbm__, depending on which
65 kind of output you choose with your invocation options. If
66 the input file name does not end in __.ps__, the whole
67 file name is used in the output file name. For example, if
68 the input file is named __psfile.old__, the output file
69 name is __psfile.old001.ppm__, etc.
70
71
72 Note that the output file selection is inconsistent with
73 most Netpbm programs, because it does not default to
74 Standard Output. This is for historical reasons, based on
75 the fact that the Netpbm formats did not always provide for
76 a sequence of images in a single file.
77
78
79 Each output file contains the image of a rectangular part of
80 the page to which it pertains. The selected area will always
81 be centered in the output file, and may have borders around
82 it. The image area to be extracted from the !PostScript file
83 and rendered into a portable anymap is defined by four
84 numbers, the lower left corner and the upper right corner x
85 and y coordinates. These coordinates are usually specified
86 by the !BoundingBox comment in the !PostScript file header,
87 but they can be overridden by the user by specifying one or
88 more of the following options: __-llx__, __-lly__,
89 __-urx__, and __-ury__. The presence and thickness of
90 a border to be left around the image area is controlled by
91 the use of the options __-xborder__ and __-yborder__.
92 If __pstopnm__ does not find !BoundingBox parameters in
93 the input, and you don't specify image area coordinates on
94 the command line, __pstopnm__ uses default values. If
95 your input is from Standard Input, __pstopnm__ does not
96 use the !BoundingBox parameters (due to the technical
97 difficulty of extracting that information and still feeding
98 the file to Ghostscript), so you either have to specify the
99 image area coordinates or take the default.
100
101
102 Unless you specify both output file width and height, via
103 the __-xsize__ and __-ysize__ options, __pstopnm__
104 maps the document into the output image by preserving its
105 aspect ratio.
106 !!OPTIONS
107
108
109 __-forceplain__
110
111
112 forces the output file to be in plain (text) format.
113 Otherwise, it is in raw (binary) format. See pbm(1),
114 etc.
115
116
117 __-llx__ ''bx''
118
119
120 selects ''bx'' as the lower left corner x coordinate (in
121 inches).
122
123
124 __-lly__ ''by''
125
126
127 selects ''by'' as the lower left corner y coordinate (in
128 inches).
129
130
131 __-landscape__
132
133
134 renders the image in landscape mode.
135
136
137 __-portrait__
138
139
140 renders the image in portrait mode.
141
142
143 __-nocrop__
144
145
146 does not crop the output image dimensions to match the
147 !PostScript image area dimensions.
148
149
150 __-pbm -pgm -ppm__
151
152
153 selects the format of the output file. By default, all files
154 are rendered as portable pixmaps (ppm format).
155
156
157 __-stdout__
158
159
160 causes output to go to Standard Output instead of to regular
161 files, one per page (see description of output files above).
162 Use __pnmsplit__ to extract individual pages from
163 Standard Output.
164
165
166 __-urx__ ''tx''
167
168
169 selects ''tx'' as the upper right corner x coordinate (in
170 inches).
171
172
173 __-ury__ ''ty''
174
175
176 selects ''ty'' as the upper right corner y coordinate (in
177 inches).
178
179
180 __-verbose__
181
182
183 prints processing information to stdout.
184
185
186 __-xborder__ ''frac''
187
188
189 specifies that the border width along the Y axis should be
190 ''frac'' times the document width as specified by the
191 bounding box comment in the !PostScript file header. The
192 default value is 0.1.
193
194
195 __-xmax__ ''xs''
196
197
198 specifies that the maximum output image width should have a
199 size less or equal to ''xs'' pixels (default:
200 612).
201
202
203 __-xsize__ ''xsize''
204
205
206 specifies that the output image width must be exactly
207 ''xs'' pixels.
208
209
210 __-yborder__ ''frac''
211
212
213 specifies that the border width along the X axis should be
214 ''frac'' times the document width as specified by the
215 bounding box comment in the !PostScript file header. The
216 default value is 0.1.
217
218
219 __-ymax__ ''ys''
220
221
222 specifies that the maximum output image height should have a
223 size less or equal to ''ys'' pixels (default:
224 792).
225
226
227 __-ysize__ ''ys''
228
229
230 specifies that the output image height must be exactly
231 ''ys'' pixels.
232 !!BUGS
233
234
235 The program will produce incorrect results with !PostScript
236 files that initialize the current transformation matrix. In
237 these cases, page translation and rotation will not have any
238 effect. To render these files, probably the best bet is to
239 use the following options:
240
241
242 pstopnm -xborder 0 -yborder 0 -portrait -nocrop
243 file.ps
244
245
246 Additional options may be needed if the document is supposed
247 to be rendered on a medium different from letter-size
248 paper.
249 !!SEE ALSO
250
251
252 gs(1), pstofits(1), pnmtops(1),
253 psidtopgm(1), pbmtolps(1),
254 pbmtoepsi(1), pnmsplit(1)
255 !!COPYRIGHT
256
257
258 Copyright (c) 1992 Smithsonian Astrophysical Observatory
259 !PostScript is a Trademark of Adobe Systems
260 Incorporated.
261 !!AUTHOR
262
263
264 Alberto Accomazzi, WIPL, Center for
265 Astrophysics.
266 ----
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