pdftoppm.1

这是一个做pdf阅读器的源代码文件,是大家学习阅读器资料的很好参考

.\" Copyright 2005-2007 Glyph & Cog, LLC
.TH pdftoppm 1 "27 February 2007"
.SH NAME
pdftoppm \- Portable Document Format (PDF) to Portable Pixmap (PPM)
converter (version 3.02)
.SH SYNOPSIS
.B pdftoppm
[options]
.I PDF-file PPM-root
.SH DESCRIPTION
.B Pdftoppm
converts Portable Document Format (PDF) files to color image files in
Portable Pixmap (PPM) format, grayscale image files in Portable
Graymap (PGM) format, or monochrome image files in Portable Bitmap
(PBM) format.
.PP
Pdftoppm reads the PDF file,
.IR PDF-file ,
and writes one PPM file for each page,
.IR PPM-root - nnnnnn .ppm,
where
.I nnnnnn
is the page number.
.SH CONFIGURATION FILE
Pdftoppm reads a configuration file at startup.  It first tries to
find the user's private config file, ~/.xpdfrc.  If that doesn't
exist, it looks for a system-wide config file, typically
/usr/local/etc/xpdfrc (but this location can be changed when pdftoppm
is built).  See the
.BR xpdfrc (5)
man page for details.
.SH OPTIONS
Many of the following options can be set with configuration file
commands.  These are listed in square brackets with the description of
the corresponding command line option.
.TP
.BI \-f " number"
Specifies the first page to convert.
.TP
.BI \-l " number"
Specifies the last page to convert.
.TP
.BI \-r " number"
Specifies the resolution, in DPI.  The default is 150 DPI.
.TP
.B \-mono
Generate a monochrome PBM file (instead of a color PPM file).
.TP
.B \-gray
Generate a grayscale PGM file (instead of a color PPM file).
.TP
.BI \-t1lib " yes | no"
Enable or disable t1lib (a Type 1 font rasterizer).  This defaults to
"yes".
.RB "[config file: " enableT1lib ]
.TP
.BI \-freetype " yes | no"
Enable or disable FreeType (a TrueType / Type 1 font rasterizer).
This defaults to "yes".
.RB "[config file: " enableFreeType ]
.TP
.BI \-aa " yes | no"
Enable or disable font anti-aliasing.  This defaults to "yes".
.RB "[config file: " antialias ]
.TP
.BI \-aaVector " yes | no"
Enable or disable vector anti-aliasing.  This defaults to "yes".
.RB "[config file: " vectorAntialias ]
.TP
.BI \-opw " password"
Specify the owner password for the PDF file.  Providing this will
bypass all security restrictions.
.TP
.BI \-upw " password"
Specify the user password for the PDF file.
.TP
.B \-q
Don't print any messages or errors.
.RB "[config file: " errQuiet ]
.TP
.B \-v
Print copyright and version information.
.TP
.B \-h
Print usage information.
.RB ( \-help
and
.B \-\-help
are equivalent.)
.SH EXIT CODES
The Xpdf tools use the following exit codes:
.TP
0
No error.
.TP
1
Error opening a PDF file.
.TP
2
Error opening an output file.
.TP
3
Error related to PDF permissions.
.TP
99
Other error.
.SH AUTHOR
The pdftoppm software and documentation are copyright 1996-2007 Glyph
& Cog, LLC.
.SH "SEE ALSO"
.BR xpdf (1),
.BR pdftops (1),
.BR pdftotext (1),
.BR pdfinfo (1),
.BR pdffonts (1),
.BR pdfimages (1),
.BR xpdfrc (5)
.br
.B http://www.foolabs.com/xpdf/