pdftops.cat

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

pdftops(1)                                             pdftops(1)



NAME
       pdftops  -  Portable  Document  Format (PDF) to PostScript
       converter (version 3.02)

SYNOPSIS
       pdftops [options] [PDF-file [PS-file]]

DESCRIPTION
       Pdftops converts Portable Document Format (PDF)  files  to
       PostScript so they can be printed.

       Pdftops  reads  the  PDF  file,  PDF-file,  and  writes  a
       PostScript file, PS-file.  If PS-file  is  not  specified,
       pdftops converts file.pdf to file.ps (or file.eps with the
       -eps option).  If PS-file is '-', the PostScript  is  sent
       to stdout.

CONFIGURATION FILE
       Pdftops  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 pdftops is built).  See the xpdfrc(5)
       man page for details.

OPTIONS
       Many of the following options can be set  with  configura-
       tion  file  commands.  These are listed in square brackets
       with the description of  the  corresponding  command  line
       option.

       -f number
              Specifies the first page to print.

       -l number
              Specifies the last page to print.

       -level1
              Generate   Level   1   PostScript.   The  resulting
              PostScript files will be significantly  larger  (if
              they  contain  images),  but  will print on Level 1
              printers.  This also converts all images  to  black
              and  white.   No  more  than  one of the PostScript
              level  options   (-level1,   -level1sep,   -level2,
              -level2sep,  -level3,  -level3Sep)  may  be  given.
              [config file: psLevel]

       -level1sep
              Generate Level 1 separable PostScript.  All  colors
              are  converted  to  CMYK.   Images are written with
              separate  stream  data  for  the  four  components.
              [config file: psLevel]

       -level2
              Generate  Level  2  PostScript.   Level  2 supports
              color images and image compression.   This  is  the
              default setting.  [config file: psLevel]

       -level2sep
              Generate  Level 2 separable PostScript.  All colors
              are converted to CMYK.  The  PostScript  separation
              convention  operators  are  used  to  handle custom
              (spot) colors.  [config file: psLevel]

       -level3
              Generate Level  3  PostScript.   This  enables  all
              Level 2 features plus CID font embedding and masked
              image generation.  [config file: psLevel]

       -level3Sep
              Generate Level 3 separable PostScript.  The separa-
              tion handling is the same as for -level2Sep.  [con-
              fig file: psLevel]

       -eps   Generate an Encapsulated PostScript (EPS) file.  An
              EPS  file  contains  a  single image, so if you use
              this option with a multi-page PDF  file,  you  must
              use  -f  and  -l to specify a single page.  No more
              than one of the mode options (-eps, -form)  may  be
              given.

       -form  Generate a PostScript form which can be imported by
              software that understands forms.  A form contains a
              single  page,  so  if  you  use  this option with a
              multi-page PDF file, you must  use  -f  and  -l  to
              specify  a  single page.  The -level1 option cannot
              be used with -form.

       -opi   Generate OPI comments  for  all  images  and  forms
              which  have  OPI information.  (This option is only
              available if pdftops was  compiled  with  OPI  sup-
              port.)  [config file: psOPI]

       -noembt1
              By  default, any Type 1 fonts which are embedded in
              the PDF file are copied into the  PostScript  file.
              This option causes pdftops to substitute base fonts
              instead.   Embedded  fonts  make  PostScript  files
              larger,  but  may be necessary for readable output.
              [config file: psEmbedType1Fonts]

       -noembtt
              By default, any TrueType fonts which  are  embedded
              in  the  PDF  file  are  copied into the PostScript
              file.  This option  causes  pdftops  to  substitute
              base fonts instead.  Embedded fonts make PostScript
              files larger, but may  be  necessary  for  readable
              output.   Also, some PostScript interpreters do not
              have TrueType  rasterizers.   [config  file:  psEm-
              bedTrueTypeFonts]

       -noembcidps
              By  default,  any  CID  PostScript  fonts which are
              embedded in  the  PDF  file  are  copied  into  the
              PostScript  file.  This option disables that embed-
              ding.  No attempt is made to  substitute  for  non-
              embedded CID PostScript fonts.  [config file: psEm-
              bedCIDPostScriptFonts]

       -noembcidtt
              By default, any CID TrueType fonts which are embed-
              ded  in the PDF file are copied into the PostScript
              file.  This option  disables  that  embedding.   No
              attempt  is made to substitute for non-embedded CID
              TrueType fonts.  [config file:  psEmbedCIDTrueType-
              Fonts]

       -preload
              Convert  PDF  forms  to  PS procedures, and preload
              image  data.   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 long docu-
              ment.

       -paper size
              Set the paper size to  one  of  "letter",  "legal",
              "A4",  or  "A3".   This can also be set to "match",
              which will set the paper size  to  match  the  size
              specified  in the PDF file.  [config file: psPaper-
              Size]

       -paperw size
              Set the paper  width,  in  points.   [config  file:
              psPaperSize]

       -paperh size
              Set  the  paper  height,  in points.  [config file:
              psPaperSize]

       -nocrop
              By default, output is cropped to the CropBox speci-
              fied  in  the PDF file.  This option disables crop-
              ping.  [config file: psCrop]

       -expand
              Expand PDF pages smaller than the paper to fill the
              paper.   By  default,  these  pages are not scaled.
              [config file: psExpandSmaller]

       -noshrink
              Don't scale PDF pages which  are  larger  than  the
              paper.  By default, pages larger than the paper are
              shrunk to fit.  [config file: psShrinkLarger]

       -nocenter
              By default, PDF pages smaller than the paper (after
              any  scaling)  are  centered  on  the  paper.  This
              option causes them to be aligned to the  lower-left
              corner  of the paper instead.  [config file: psCen-
              ter]

       -pagecrop
              Treat  the  CropBox  as  the  PDF  page  size.   By
              default, the MediaBox is used as the page size.

       -duplex
              Set  the  Duplex pagedevice entry in the PostScript
              file.  This tells duplex-capable printers to enable
              duplexing.  [config file: psDuplex]

       -opw password
              Specify  the owner password for the PDF file.  Pro-
              viding this will bypass all security  restrictions.

       -upw password
              Specify the user password for the PDF file.

       -q     Don't  print any messages or errors.  [config file:
              errQuiet]

       -cfg config-file
              Read config-file in place of ~/.xpdfrc or the  sys-
              tem-wide config file.

       -v     Print copyright and version information.

       -h     Print  usage  information.   (-help  and --help are
              equivalent.)

EXIT CODES
       The Xpdf tools use the following exit codes:

       0      No error.

       1      Error opening a PDF file.

       2      Error opening an output file.

       3      Error related to PDF permissions.

       99     Other error.

AUTHOR
       The  pdftops  software  and  documentation  are  copyright
       1996-2007 Glyph & Cog, LLC.

SEE ALSO
       xpdf(1),     pdftotext(1),     pdfinfo(1),    pdffonts(1),
       pdftoppm(1), pdfimages(1), xpdfrc(5)
       http://www.foolabs.com/xpdf/



                         27 February 2007              pdftops(1)