pdfimages.hlp

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

! Generated automatically by mantohlp
1 pdfimages

       pdfimages - Portable Document Format (PDF) image extractor

       pdfimages [options] PDF-file image-root

       Pdfimages saves images from  a  Portable  Document  Format
       (PDF)  file  as  Portable  Pixmap  (PPM),  Portable Bitmap
       (PBM), or JPEG files.

       Pdfimages reads the PDF file, scans  one  or  more  pages,
       PDF-file,  and  writes one PPM, PBM, or JPEG file for each
       image, image-root-nnn.xxx, where nnn is the  image  number
       and xxx is the image type (.ppm, .pbm, .jpg).

       NB:  pdfimages  extracts  the  raw image data from the PDF
       file, without performing any additional  transforms.   Any
       rotation,  clipping, color inversion, etc. done by the PDF
       content stream is ignored.

                                                               ()

2 ONFIGURATION_FIL

       Pdfimages 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  pdfimages  is  built).   See  the
       xpdfrc(5) man page for details.

                                                               ()

2 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 scan.

       -l number
              Specifies the last page to scan.

       -j     Normally,  all  images  are  written  as  PBM  (for
              monochrome   images)  or  PPM  (for  non-monochrome
              images) files.  With this  option,  images  in  DCT
              format are saved as JPEG files.  All non-DCT images
              are saved in PBM/PPM format as usual.

       -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]

       -v     Print copyright and version information.

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

                                                               ()

2 XIT_CODE

       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.

                                                               ()

2 AUTHOR

       The  pdfimages  software  and  documentation are copyright
       1998-2007 Glyph & Cog, LLC.

                                                               ()

2 SEE_ALSO

       xpdf(1),   pdftops(1),   pdftotext(1),   pdfinfo(1),  pdf-
       fonts(1), pdftoppm(1), xpdfrc(5)
       http://www.foolabs.com/xpdf/

                                                               ()