Picttoppm User Manual(0) Picttoppm User Manual(0)NAMEpicttoppm - convert a Macintosh PICT file to a PPM
picttoppm
[-verbose]
[-fullres]
[-noheader]
[-quickdraw]
[-fontdirfile]
[pictfile]
This program is part of Netpbm(1).
picttoppm reads a PICT file (version 1 or 2) and outputs a PPM image.
This is useful as the first step in converting a scanned image to some‐
thing that can be displayed on Unix.
-fontdir file
Make the list of BDF fonts in file available for use by pict‐
toppm when drawing text. See below for the format of the font‐
dir file. This is in addition to the built-in fonts and those
in the file fontdir.
-fullres
Force any images in the PICT file to be output with at least
their full resolution. A PICT file may indicate that a con‐
tained image is to be scaled down before output. This option
forces images to retain their sizes and prevent information
loss. This option disables all PICT operations except images.
-noheader
Do not skip the 512 byte header that is present on all PICT
files. This is useful when you have PICT data that was not
stored in the data fork of a PICT file.
-quickdraw
Execute only pure quickdraw operations. In particular, turn off
the interpretation of special PostScript printer operations.
-verbose
Print a whole bunch of information about the PICT file and the
conversion process that only picttoppm hackers really care
about.
The PICT file format is a general drawing format. picttoppm
does not recognize all the drawing commands, but it does fully
implement all image commands and mostly implement line, rectan‐
gle, polgon and text drawing. It is useful for converting
scanned images and some drawing conversion.
Memory is used very liberally with at least 6 bytes needed for every
pixel. Large bitmap PICT files will likely run your computer out of
memory.
Some of the information in a PICT file is text, with a number indicat‐
ing the font in which the text is supposed to rendered. picttoppm has
one built-in font, but you can add others by directing picttoppm to BDF
font files, which you do with font directory files.
picttoppm automatically uses the file named fontdir in the current
directory, if it exists. You may specify an additional font directory
file with the -fontdir option.
Obviously the font defintions are strongly related to the Macintosh.
You can find more font numbers and information about fonts in Macintosh
documentation.
FONT DIR FILE FORMAT
Each line in the file is either a comment or font information. A com‐
ment begins with #. The font information consists of 4 whitespace
spearated fields. The first is the font number, the second is the font
size in pixels, the third is the font style and the fourth is the name
of a BDF file containing the font. The BDF format is defined by the X
Window System and is beyond the scope of this document.
The font number indicates the type face. Here is a list of known font
numbers and their faces.
0 Chicago
1 application font
2 New York
3 Geneva
4 Monaco
5 Venice
6 London
7 Athens
8 San Franciso
9 Toronto
11 Cairo
12 Los Angeles
20 Times Roman
21 Helvetica
22 Courier
23 Symbol
24 Taliesin
The font style indicates a variation on the font. Multiple variations
may apply to a font and the font style is the sum of the variation num‐
bers which are:
1 Boldface
2 Italic
4 Underlined
8 Outlined
16 Shadow
32 Condensed
64 Extended
Inside Macintosh volumes 1 and 5, ppmtopict(1), ppm(1)
Copyright 1993 George Phillips
netpbm documentation 17 June 2006 Picttoppm User Manual(0)
