pnmtops(1)pnmtops(1)NAMEpnmtops - convert portable anymap to PostScript
SYNOPSISpnmtops [-scale s] [-turn|-noturn] [-rle|-runlength] [-dpi n] [-width
n] [-height n] [-center|-nocenter] [pnmfile]
DESCRIPTION
Reads a portable anymap as input. Produces Encapsulated PostScript as
output.
If the input file is in color (PPM), a color PostScript file gets writ‐
ten. Some PostScript interpreters can't handle color PostScript. If
you have one of these you will need to run your image through ppmtopgm
first.
Note that there is no pstopnm tool - this transformation is one-way,
because a pstopnm tool would be a full-fledged PostScript interpreter,
which is beyond the scope of this package. However, see the psidtopgm
tool, which can read grayscale non-runlength PostScript image data.
Also, if you're willing to install the fairly large GhostScript pack‐
age, it comes with a pstoppm script.
OPTIONS
The -scale flag controls the scale of the result. The default scale is
1, which on a 300 dpi printer such as the Apple LaserWriter makes the
output look about the same size as the input would if it was displayed
on a typical 72 dpi screen. To get one PNM pixel per 300 dpi printer
pixel, use "-scale 0.25".
The -turn and -noturn flags control whether the image gets turned 90
degrees. Normally, if an image is wider than it is tall, it gets
turned automatically to better fit the page. If the -turn flag is
specified, it will be turned no matter what its shape; and if the
-noturn flag is specified, it will not be turned no matter what its
shape.
The -rle or -runlength flag specifies run-length compression. This may
save time if the host-to-printer link is slow; but normally the
printer's processing time dominates, so -rle makes things slower.
The -dpi flag lets you specify the dots per inch of your output device.
The default is 300 dpi. In theory PostScript is device-independent and
you don't have to worry about this, but in practice its raster render‐
ing can have unsightly bands if the device pixels and the image pixels
aren't in sync.
The -width and -height flags let you specify the size of the page. The
default is 8.5 inches by 11 inches.
With the -nocenter flag, the output is not centered on the page, i.e.
it appears in the upper left corner. This is useful for programs which
can include PostScript files, but can't cope with pictures which are
not positioned in the upper left corner. The default is -center i.e.
the image is centered on the page.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSOpnm(5), psidtopgm(1)AUTHOR
Copyright (C) 1989, 1991 by Jef Poskanzer.
Modified November 1993 by Wolfgang Stuerzlinger, wrzl@gup.uni-
linz.ac.at
26 October 1991 pnmtops(1)
