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       djvutoxml, djvuxmlparser - DjVuLibre XML Tools.


       djvutoxml [options] inputdjvufile [outputxmlfile]
       djvuxmlparser [inputxmlfile]


       The  DjVuLibre  XML  Tools provide for editing the metadata, hyperlinks
       and hidden text associated with  DjVu  files.   Unlike  djvused(1)  the
       DjVuLibre  XML  Tools rely on the XML technology and can take advantage
       of XML editors and verifiers.


       Program  djvutoxml  creates  a  XML  file  outputxmlfile  containing  a
       reference  to  the original DjVu document inputdjvufile as well as tags
       describing the metadata, hyperlinks, and hidden  text  associated  with
       the DjVu file.

       The following options are supported:

       --page pagenum
              Select  a  page  in a multi-page document.  Without this option,
              djvutoxml outputs the XML corresponding  to  all  pages  of  the

              Specifies  the  HIDDENTEXT  element  for  each  page  should  be
              included in the output.  If specified  without  the  --with-anno
              flag then the --without-anno is implied.  If none of the --with-
              text, --without-text, --with-anno, or --without-anno, flags  are
              specified,  then  the  --with-text  and  --with-anno  flags  are

              Specifies not to output the HIDDENTEXT element  for  each  page.
              If  specified  without  the --without-anno flag then the --with-
              anno flag is implied.

              Specifies the area MAP element for each page should be  included
              in  the  output.  If specified without the --with-text flag then
              the --without-text flag is implied.

              Specifies the area MAP element  for  each  page  should  not  be
              included in the output.  If specified without the --without-text
              flag then the --with-text flag is implied.


       Files produced by djvutoxml can then be modified using  either  a  text
       editor  or  a  XML  editor.   Program djvuxmlparser parses the XML file
       inputxmlfile and modifies the metadata of the DjVu files referenced  by
       the OBJECT elements.


       The document type definition file (DTD)


       defines the input and output of the DjVu XML tools.

       The DjVuXML-s DTD is a simplification of the HTML DTD:

       with  a  few  new  attributes  added  specific  to  DjVu.   Each of the
       specified pages of a DjVu document are represented as  OBJECT  elements
       within  the  BODY  element  of  the  XML file.  Each OBJECT element may
       contain multiple PARAM elements to specify attributes like  page  name,
       resolution, and gamma factor.  Each OBJECT element may also contain one
       HIDDENTTEXT element to specify the hidden text (usually generated  with
       an  OCR  engine) within the DjVu page.  In addition each OBJECT element
       may reference a single area MAP element which  contains  multiple  AREA
       elements  to represent all the hyperlink and highlight areas within the
       DjVu document.

   PARAM Elements
       Legal PARAM elements of a DjVu OBJECT include but are  not  limited  to
       PAGE  for  specifying  the  page-name,  GAMMA  for specifying the gamma
       correction factor (normally 2.2),  and  DPI  for  specifying  the  page

   HIDDENTEXT Elements
       The  HIDDENTEXT  elements  consists  of nested elements of PAGECOLUMNS,
       REGION, PARAGRAPH, LINE, and WORD.   The  most  deeply  nested  element
       specified,  should  specify  the bounding coordinates of the element in
       top-down orientation.  The body  of  the  most  deeply  nested  element
       should  contain  the text.  Most DjVu documents use either LINE or WORD
       as the lowest level element, but any element is  legal  as  the  lowest
       level element.  A white space is always added between WORD elements and
       a line feed is always added between  LINE  elements.   Since  languages
       such  as  Japanese  do not use spaces between words, it is quite common
       for Asian OCR engines to use WORD as characters instead.

   MAP Elements
       The body of the MAP elements consist of AREA elements.  In addition  to
       the attributes listed in

       the attributes bordertype, bordercolor, border, and highlight have been
       added to specify border type, border color, border width, and highlight
       colors respectively.  Legal values for each  of  these  attributes  are
       listed  in  the  DjVuXML-s  DTD.   In addition, the shape oval has been
       added to the legal list of shapes.  An oval uses a rectangular bounding


       Perhaps it would have been better to use CC2 style sheets with standard
       HTML elements instead of defining the HIDDENTEXT element.


       The  DjVu  XML  tools  and  DTD  were  written  by  Bill   C.   Riemers
       <> and Fred Crary.


       djvu(1), djvused(1), and utf8(7).