xpdfrc.5

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 2002-2007 Glyph & Cog, LLC
.TH xpdfrc 5 "27 February 2007"
.SH NAME
xpdfrc \- configuration file for Xpdf tools (version 3.02)
.SH DESCRIPTION
All of the Xpdf tools read a single configuration file.  If you have a
.I .xpdfrc
file in your home directory, it will be read.  Otherwise, a
system-wide configuration file will be read from
.IR /usr/local/etc/xpdfrc ,
if it exists.  (This is its default location; depending on build
options, it may be placed elsewhere.)  On Win32 systems, the
.I xpdfrc
file should be placed in the same directory as the executables.
.PP
The xpdfrc file consists of a series of configuration options, one
per line.  Blank lines and lines starting with a \'#' (comments) are
ignored.
.PP
The following sections list all of the configuration options, sorted
into functional groups.  There is an examples section at the end.
.SH INCLUDE FILES
.TP
.BI include " config\-file"
Includes the specified config file.  The effect of this is equivalent
to inserting the contents of
.I config\-file
directly into the parent config file in place of the
.I include
command.  Config files can be nested arbitrarily deeply.
.SH CHARACTER MAPPING
.TP
.BI nameToUnicode " map\-file"
Specifies a file with the mapping from character names to Unicode.
This is used to handle PDF fonts that have valid encodings but no
ToUnicode entry.  Each line of a nameToUnicode file looks like this:

.I "    " hex\-string name

The
.I hex\-string
is the Unicode (UCS-2) character index, and
.I name
is the corresponding character name.  Multiple nameToUnicode files can
be used; if a character name is given more than once, the code in the
last specified file is used.  There is a built-in default
nameToUnicode table with all of Adobe's standard character names.
.TP
.BI cidToUnicode " registry\-ordering map\-file"
Specifies the file with the mapping from character collection to
Unicode.  Each line of a cidToUnicode file represents one character:

.I "    " hex\-string

The
.I hex\-string
is the Unicode (UCS-2) index for that character.  The first line maps
CID 0, the second line CID 1, etc.  File size is determined by size of
the character collection.  Only one file is allowed per character
collection; the last specified file is used.  There are no built-in
cidToUnicode mappings.
.TP
.BI unicodeToUnicode " font\-name\-substring map\-file"
This is used to work around PDF fonts which have incorrect Unicode
information.  It specifies a file which maps from the given
(incorrect) Unicode indexes to the correct ones.  The mapping will be
used for any font whose name contains
.IR font\-name\-substring .
Each line of a unicodeToUnicode file represents one Unicode character:

.RI "    " in\-hex " " out\-hex1 " " out\-hex2 " ..."

The
.I in\-hex
field is an input (incorrect) Unicode index, and the rest of the
fields are one or more output (correct) Unicode indexes.  Each
occurrence of
.I in\-hex
will be converted to the specified output sequence.
.TP
.BI unicodeMap " encoding\-name map\-file"
Specifies the file with mapping from Unicode to
.IR encoding\-name .
These encodings are used for X display fonts and text output (see
below).  Each line of a unicodeMap file represents a range of one or
more Unicode characters which maps linearly to a range in the output
encoding:
.nf

.I "    " in\-start\-hex in\-end\-hex out\-start\-hex

.fi
Entries for single characters can be abbreviated to:
.nf

.I "    " in\-hex out\-hex

.fi
The
.I in\-start\-hex
and
.I in\-end\-hex
fields (or the single
.I in\-hex
field) specify the Unicode range.  The
.I out\-start\-hex
field (or the
.I out\-hex
field) specifies the start of the output encoding range.  The length
of the
.I out\-start\-hex
(or
.IR out\-hex )
string determines the length of the output characters (e.g., UTF-8
uses different numbers of bytes to represent characters in different
ranges).  Entries must be given in increasing Unicode order.  Only one
file is allowed per encoding; the last specified file is used.  The
.IR Latin1 ,
.IR ASCII7 ,
.IR Symbol ,
.IR ZapfDingbats ,
.IR UTF-8 ,
and
.I UCS-2
encodings are predefined.
.TP
.BI cMapDir " registry\-ordering dir"
Specifies a search directory,
.IR dir ,
for CMaps for the
.I registry\-ordering
character collection.  There can be multiple directories for a
particular collection.  There are no default CMap directories.
.TP
.BI toUnicodeDir " dir"
Specifies a search directory,
.IR dir ,
for ToUnicode CMaps.  There can be multiple ToUnicode directories.
There are no default ToUnicode directories.
.SH DISPLAY FONTS
.TP
.BI displayFontT1 " PDF\-font\-name T1\-file"
Maps a PDF font,
.IR PDF\-font\-name ,
to a Type 1 font for display.  The Type 1 font file,
.IR T1\-file ,
should be a standard .pfa or .pfb file.
.TP
.BI displayFontTT " PDF\-font\-name TT\-file"
Maps a PDF font,
.IR PDF\-font\-name ,
to a TrueType font for display.  The TrueType font file,
.IR TT\-file ,
should be a standard .ttf file.
.TP
.BI displayNamedCIDFontT1 " PDF\-font\-name T1\-file"
Maps a specific PDF CID (16-bit) font,
.IR PDF\-font\-name ,
to a CID font (16-bit PostScript font), for display.  There are no
default CID font mappings.
.TP
.BI displayCIDFontT1 " registry\-ordering T1\-file"
Maps the
.I registry\-ordering
character collection to a CID font (16-bit PostScript font), for
display.  This mapping is used if the font name doesn't match any of
the fonts declared with displayNamedCIDFont* commands.  There are no
default CID font mappings.
.TP
.BI displayNamedCIDFontTT " PDF\-font\-name TT\-file"
Maps a specific PDF CID (16-bit) font,
.IR PDF\-font\-name ,
to a (16-bit) TrueType font, for display.  There are no default CID
font mappings.
.TP
.BI displayCIDFontTT " registry\-ordering TT\-file"
Maps the
.I registry\-ordering
character collection to a (16-bit) TrueType font, for display.  This
mapping is used if the font name doesn't match any of the fonts
declared with displayNamedCIDFont* commands.  There are no default CID
font mappings.
.TP
.BI fontDir " dir"
Specifies a search directory for external font files.  There can be
multiple fontDir directories.  If a PDF file uses a font but doesn't
embed it, these directories will be searched for a matching font file.
These fonts are used by both xpdf (for display) and pdftops (for
embedding in the generated PostScript).  Type 1 fonts must have a
suffix of ".pfa", ".pfb", ".ps", or no suffix at all.  TrueType fonts
must have a ".ttf" suffix.  Other files in these directories will be
ignored.  There are no default fontDir directories.
.SH POSTSCRIPT CONTROL
.TP
.BI psPaperSize " width(pts) height(pts)"
Sets the paper size for PostScript output.  The
.I width
and
.I height
parameters give the paper size in PostScript points (1 point = 1/72
inch).
.TP
.BR psPaperSize " letter | legal | A4 | A3 | match"
Sets the paper size for PostScript output to a standard size.  The
default paper size is set when xpdf and pdftops are built, typically
to "letter" or "A4".  This can also be set to "match", which will set
the paper size to match the size specified in the PDF file.
.TP
.BR psImageableArea " llx lly urx ury"
Sets the imageable area for PostScript output.  The four integers are
the coordinates of the lower-left and upper-right corners of the
imageable region, specified in points (with the origin being the
lower-left corner of the paper).  This defaults to the full paper
size; the psPaperSize option will reset the imageable area
coordinates.
.TP
.BR psCrop " yes | no"
If set to "yes", PostScript output is cropped to the CropBox specified
in the PDF file; otherwise no cropping is done.  This defaults to
"yes".
.TP
.BR psExpandSmaller " yes | no"
If set to "yes", PDF pages smaller than the PostScript imageable area
are expanded to fill the imageable area.  Otherwise, no scalling is
done on smaller pages.  This defaults to "no".
.TP
.BR psShrinkLarger " yes | no"
If set to yes, PDF pages larger than the PostScript imageable area are
shrunk to fit the imageable area.  Otherwise, no scaling is done on
larger pages.  This defaults to "yes".
.TP
.BR psCenter " yes | no"
If set to yes, PDF pages smaller than the PostScript imageable area
(after any scaling) are centered in the imageable area.  Otherwise,
they are aligned at the lower-left corner of the imageable area.  This
defaults to "yes".
.TP
.BR psDuplex " yes | no"
If set to "yes", the generated PostScript will set the "Duplex"
pagedevice entry.  This tells duplex-capable printers to enable
duplexing.  This defaults to "no".
.TP
.BR psLevel " level1 | level1sep | level2 | level2sep | level3 | level3Sep"
Sets the PostScript level to generate.  This defaults to "level2".
.TP
.BI psFont " PDF\-font\-name PS\-font\-name"
When the
.I PDF\-font\-name
font is used in a PDF file, it will be translated to the PostScript
font
.IR PS\-font\-name ,
which is assumed to be resident in the printer.  Typically,
.I PDF\-font\-name
and
.I PS\-font\-name
are the same.  By default, only the Base-14 fonts are assumed to be
resident.
.TP
.BI psNamedFont16 " PDF\-font\-name wMode PS\-font\-name encoding"
When the 16-bit font
.I PDF\-font\-name
is used in a PDF file with the
.I wMode
writing mode and is not embedded, the
.I PS\-font\-name
font is substituted for it.  The writing mode must be either \'H' for
horizontal or \'V' for vertical.  The
.I PS\-font\-name
font is assumed to be resident in the printer and to use the specified
encoding (which must have been defined with the unicodeMap command).
.TP
.BI psFont16 " registry\-ordering wMode PS\-font\-name encoding"
When a 16-bit font using the
.I registry\-ordering
character collection and 
.I wMode
writing mode is not embedded and does not match any of the fonts
declared in psNamedFont16 commands, the
.I PS\-font\-name
font is substituted for it.  The writing mode must be either \'H' for
horizontal or \'V' for vertical.  The
.I PS\-font\-name
font is assumed to be resident in the printer and to use the specified
writing mode and encoding (which must have been defined with the
unicodeMap command).
.TP
.BR psEmbedType1Fonts " yes | no"
If set to "no", prevents embedding of Type 1 fonts in generated
PostScript.  This defaults to "yes".
.TP
.BR psEmbedTrueTypeFonts " yes | no"
If set to "no", prevents embedding of TrueType fonts in generated
PostScript.  This defaults to "yes".
.TP
.BR psEmbedCIDTrueTypeFonts " yes | no"
If set to "no", prevents embedding of CID TrueType fonts in generated
PostScript.  For Level 3 PostScript, this generates a CID font, for
lower levels it generates a non-CID composite font.
.TP
.BR psEmbedCIDPostScriptFonts " yes | no"
If set to "no", prevents embedding of CID PostScript fonts in
generated PostScript.  For Level 3 PostScript, this generates a CID
font, for lower levels it generates a non-CID composite font.
.TP
.BR psPreload " yes | no"
If set to "yes", PDF forms are converted to PS procedures, and image
data is preloaded.  This uses more memory in the PostScript
interpreter, but generates significantly smaller PS files in
situations where, e.g., the same image is drawn on every page of a