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CentOS 7.0 - man page for extractbb (centos section 1)

EXTRACTBB(1)				     DVIPDFMx				     EXTRACTBB(1)

       extractbb, ebb - extract bounding box information from graphics files

       extractbb [-v|-q] [-O] [-m|-x] file...

       For each JPEG, PNG, or PDF file given on the command line, extractbb extracts the bounding
       box information and writes it into a file with extension .xbb, together with  some  header
       information.  These  files  can then be used by dvipdfmx or other programs. For PDF files,
       the number of pages and the PDF version number are reported as well.  The  input  filename
       extension may be in upper or lower case.

       If  called  as ebb, the output is written in the ``bb'' format (and with extension .bb) as
       used by dvipdfm.  Xbb may be defined as a synomym for extractbb on your system.

       -v	 Be verbose.
       -q	 Be quiet.
       -O	 Write output to standard output.
       -m	 Write output in dvipdfm's ``bb'' format.
       -x	 Write output in dvipdfmx's ``xbb'' format (default), which is the same  as  that
		 used by pdfTeX.

       Here are more details about the bb and xbb formats:

       The  original  ebb (from dvipdfm) ignored density information in bitmap images, and gener-
       ated bounding boxes with 100px = 72bp = 1in.  Unfortunately, screenshots (especially) tend
       to look bad with this approach.

       So,  extractbb  (from dvipdfmx) uses density information if present.  Otherwise, it gener-
       ates bounding box with 100px = 100bp.  This is what pdfTeX does.

       There is currently no way to specify which bounding box is taken for PDF  files.  It  will
       always  be  the	first  one  from the following list: ArtBox, TrimBox, BleedBox, MediaBox.
       (Often only MediaBox is defined.) Moreover, the reported bounding box always refers to the
       first page in a PDF file.

       extractbb  was  written	by  the DVIPDFMx project team <dvipdfmx@ktug.or.kr>, based on the
       program ebb by Mark A. Wicks.

       This manual page was also written by the DVIPDFMx project team, based  on  a  manual  page
       Frank  Kuster <frank@kuesterei.ch> wrote for the Debian GNU/Linux system.  It may be used,
       modified, and/or redistributed by others without contacting the authors.

20120420				  20 April 2012 			     EXTRACTBB(1)

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