DPOST(1) User Commands DPOST(1)NAMEdpost - troff postprocessor for PostScript printers
SYNOPSISdpost [-c num] [-e num] [-m num] [-n num] [-o list] [-p mode] [-w num]
[-x num] [-y num] [-F dir] [-H dir] [-L file] [-M marks] [-O]
[-T name] [file] ...
DESCRIPTIONdpost translates files created by troff(1) into PostScript and writes
the results on the standard output. If no files are specified, or if -
is one of the input files, the standard input is read. The following
options are accepted:
-c num Print num copies of each page. By default only one copy
is printed.
-e num Sets the text encoding level to num. The recognized
choices are digits between 0 and 5. 0 uses the Post‐
Script ashow operator, and produces output essentially
identical to previous versions of dpost. 1 also uses
ashow but integrates motion commands with text commands.
2 uses the PostScript awidthshow operator, computing
space widths in PostScript. 3 also uses awidthshow but
computes space widths in dpost. 4 uses ashow, storing
position as differences. 5 emits the same commands as 4
but in a binary PostScript Level 2 representation. The
default is 3 with the ps device.
-m num Magnify each logical page by the factor num. Pages are
scaled uniformly about the origin, which is located near
the upper left corner of each page. The default magni‐
fication is 1.0.
-n num Print num logical pages on each piece of paper, where
num can be any positive integer. By default, num is set
to 1.
-o list Print those pages for which numbers are given in the
comma-separated list. The list contains single numbers
N and ranges N1−N2. A missing N1 means the lowest num‐
bered page, a missing N2 means the highest. The page
range is an expression of logical pages rather than
physical sheets of paper. For example, if you are
printing two logical pages to a sheet, and you specified
a range of 4, then two sheets of paper would print, con‐
taining four page layouts. If you specified a page
range of 3-4, when requesting two logical pages to a
sheet; then only page 3 and page 4 layouts would print,
and they would appear on one physical sheet of paper.
-p mode Print files in either portrait or landscape mode. Only
the first character of mode is significant. The default
mode is portrait.
-w num Set the line width used to implement troff graphics com‐
mands to num points, where a point is approximately 1/72
of an inch. By default, num is set to 0.3 points.
-x num Translate the origin num inches along the positive x ax‐
is. The default coordinate system has the origin fixed
near the upper left corner of the page, with positive x
to the right and positive y down the page. Positive num
moves everything right. The default offset is 0 inches.
-y num Translate the origin num inches along the positive y ax‐
is. Positive num moves text up the page. The default
offset is 0.
-F dir Use dir as the font directory. The default dir is
/usr/ucblib/doctools/font, and dpost reads binary font
files from directory /usr/ucblib/doctools/font/devps.
-H dir Use dir as the host resident font directory. Files in
this directory should be complete PostScript font de‐
scriptions, and must be assigned a name that corresponds
to the appropriate two-character troff font name. Each
font file is copied to the output file only when needed
and at most once during each job. There is no default
directory.
-L file Use file as the PostScript prologue which, by default,
is /usr/lib/lp/postscript/dpost.ps.
-M marks Print marks (in combination with the trimat troff re‐
quest). Valid types of marks are: cutmarks,
registrationmarks, startargets, colorbars, and all.
Mark names can be abbreviated and combined by colons,
e.g. -Mcut:reg will print cut marks and registration
marks.
-O Disables PostScript picture inclusion. A recommended
option when dpost is run by a spooler in a networked en‐
vironment.
-T name Use font files for device name as the best description
of available PostScript fonts. By default, name is set
to ps and dpost reads files from /usr/ucblib/doc‐
tools/font/devps.
The files should be prepared by troff. The default font files in
/usr/ucblib/doctools/font/devps produce the best output. They assume a
resolution of 72000 dpi, and can be used to format files by adding the
-Tps option to the troff call.
dpost makes no assumptions about resolutions. The first x res command
sets the resolution used to translate the input files, the DESC file,
usually /usr/ucblib/doctools/font/devps/DESC, defines the resolution
used in the binary font files, and the PostScript prologue is responsi‐
ble for setting up an appropriate user coordinate system.
EXAMPLES
pic file | tbl | eqn | troff -mm -Tps | dpostFILES
/usr/ucblib/doctools/font/devps/*
/usr/ucblib/doctools/font/devpost/charlib/*
/usr/ucblib/doctools/font/devpost/postscript/dpost.ps
/usr/ucblib/doctools/font/devpost/postscript/color.ps
/usr/ucblib/doctools/font/devpost/postscript/cutmarks.ps
/usr/ucblib/doctools/font/devpost/postscript/draw.ps
/usr/ucblib/doctools/font/devpost/postscript/forms.ps
/usr/ucblib/doctools/font/devpost/postscript/ps.requests
/usr/ucblib/doctools/tmac/pictures
/usr/ucblib/doctools/tmac/color
SEE ALSOtroff(1)DIAGNOSTICS
The following exit values are returned:
0 Successful completion.
non-zero An error occurred.
NOTES
Although dpost can handle files formatted for any device, emulation is
expensive and can easily double the print time and the size of the out‐
put file. No attempt has been made to implement the character sets or
fonts available on all devices supported by troff. Missing characters
will be replaced by white space, and unrecognized fonts will usually
default to one of the Times fonts (that is, R, I, B, or BI).
An x res command must precede the first x init command, and all the in‐
put files should have been prepared for the same output device.
Use of the -T option is not encouraged. Its only purpose is to enable
the use of other PostScript font and device description files, that
perhaps use different resolutions, character sets, or fonts.
Heirloom Documentation Tools 2/7/07 DPOST(1)
