Picttoppm User Manual(0) Picttoppm User Manual(0)NAMEpicttoppm - convert a Macintosh PICT file to a PPM
SYNOPSISpicttoppm
[-verbose]
[-fullres]
[-noheader]
[-quickdraw] [-fontdir file]
[pictfile]
DESCRIPTION
This program is part of Netpbm(1)picttoppm reads a PICT file (version 1 or 2) and outputs a PPM image.
PICT is an image format that was developed by Apple Computer in 1984 as
the native format for Macintosh graphics. A PICT image is encoded in
QuickDraw commands. The PICT format is a meta-format that can be used
for both bitmap images and vector images. PICT is also known as 'Mac‐
intosh Picture' format, or the QuickDraw Picture format.
PICT files are primarily used to exchange graphics between various Mac‐
intosh applications.
In MacOS X, PDF replaces PICT as the main graphics format.
OPTIONS-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 assume the first 512 bytes of the file are a header. All
PICT files have such a header, but 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.
LIMITATIONS
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, rectangle, polygon and text
drawing. It is useful for converting scanned images and some drawing
conversion.
With -fullres, picttoppm ignores text drawing commands. Beginning in
Netpbm 10.45 (December 2008), it issues a warning message when it omits
text for this reason.
FONTS
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 definitions 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 sep‐
arated 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
SEE ALSO
Inside Macintosh volumes 1 and 5, ppmtopict(1) , ppm(5)AUTHOR
Copyright 1993 George Phillips
netpbm documentation 17 June 2006 Picttoppm User Manual(0)
