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Full Discussion: how to get number of pages in a PDF file
Top Forums Shell Programming and Scripting how to get number of pages in a PDF file Post 302218774 by fpmurphy on Saturday 26th of July 2008 12:13:57 PM
Old 07-26-2008
The following is a short shell script which I hacked together based on the PDF Reference V1.7 which seems to do the job across a wide spectrum of PDF document types.

Code:
#!/bin/ksh93
#
#  USAGE: pdfcount file.pdf
#

[[ "$#" != "1" ]] && {
   print "ERROR: No file specified"
   exit 1
}

numpages=0

strings $1 | grep "/Count" |
while read line
do
   num=${line/*([[:print:]])+(Count )?(-)+({1,4}(\d))*([[:print:]])/\4}
   (( num > numpages)) && numpages=$num
done

print $numpages

exit 0

Note this shell script is written for ksh93, not pdksh or ksh88. It can easily be ported to other shells but that I will leave as an exercise to the reader.
 

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LEARN ABOUT DEBIAN

pdf::api2::basic::pdf::page

PDF::API2::Basic::PDF::Page(3pm)			User Contributed Perl Documentation			  PDF::API2::Basic::PDF::Page(3pm)

NAME

       PDF::API2::Basic::PDF::Page - Represents a PDF page, inherits from PDF::API2::Basic::PDF::Pages

DESCRIPTION

       Represents a page of output in PDF. It also keeps track of the content stream, any resources (such as fonts) being switched, etc.

       Page inherits from Pages due to a number of shared methods. They are really structurally quite different.

INSTANCE VARIABLES

       A page has various working variables:

       curstrm
	   The currently open stream

METHODS

   PDF::API2::Basic::PDF::Page->new($pdf, $parent, $index)
       Creates a new page based on a pages object (perhaps the root object).

       The page is also added to the parent at this point, so pages are ordered in a PDF document in the order in which they are created rather
       than in the order they are closed.

       Only the essential elements in the page dictionary are created here, all others are either optional or can be inherited.

       The optional index value indicates the index in the parent list that this page should be inserted (so that new pages need not be appended)

   $p->add($str)
       Adds the string to the currently active stream for this page. If no stream exists, then one is created and added to the list of streams for
       this page.

       The slightly cryptic name is an aim to keep it short given the number of times people are likely to have to type it.

   $p->ship_out($pdf)
       Ships the page out to the given output file context

perl v5.14.2							    2011-03-10					  PDF::API2::Basic::PDF::Page(3pm)
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