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11.05.2007 at 08:45AM PST, ID: 22939487

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6.0

Perl parsing PDF

Zone: Perl Programming Language

Tags: perl, pdf, parse

I want to parse the data in a PDf file using Perl. I need to look for the string "Department" and retrieve the value assigned to it. This is the header of the PDF file. Then there are 4 columns in the PDF file. There are values in these columns I need to parse. I can use reg exp for the parse but how do I do that in PDF file

Student id credits fee scholarship

John
Harry

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Question Stats

Zone: Programming

Question Asked By: saibsk

Solution Provided By: saibsk

Participating Experts: 2

Solution Grade: B

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11.05.2007 at 09:45AM PST, ID: 20217877

Rank: Genius

Adam314:

That will depend on how the data is setup in the PDF file. Can you post the PDF file somewhere?

11.05.2007 at 11:15AM PST, ID: 20218546

saibsk:

It has this format.

Department:

Student id credits fee scholarship

John
Harry

But I can't post the PDF file data. I need the parse the above data in the PDF file.

11.05.2007 at 12:00PM PST, ID: 20219003

Rank: Genius

Adam314:

Without seeing the actual data, it will be hard to help. Anyways, here is something that should get you going.

use CAM::PDF;

my $pdf = CAM::PDF->new('test1.pdf');
my $page1 = $pdf->getPageContent(1); #or whatever page you need

my @lines=split(/\n/, $page1);
my $names=0;
foreach (@lines) {
      if(/Student id\s+credits\s+fee\s+scholarship/) {
            $names=1;
      }
      elsif($names==1) {
            if(/(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)/) {
                  print "Name=$1\n";
                  print "ID=$2\n";
                  print "Credits=$3\n";
                  print "Fee=$4\n";
                  print "Scholarship=$5\n";
            }
      }
}

11.05.2007 at 12:58PM PST, ID: 20219420

saibsk:

But what if there is more than 1 page in a PDF document?

11.05.2007 at 01:20PM PST, ID: 20219601

Rank: Genius

Adam314:

Does each page have the "Student id credits fee scholarship" header, or is that only listed once?

You can get the number of pages, and loop through all of them with:
my $pages = $pdf->numPages();
for(1..$pages) {
my $page = $pdf->getPageText($_);
.....
}

11.05.2007 at 01:26PM PST, ID: 20219658

saibsk:

#!/usr/bin/perl

      use CAM::PDF;

      $fileName = 'test.pdf';

      print "File: $fileName";

      my $pdf = CAM::PDF->new($filename);

      print "PDF:$pdf";


      my $page1 = $pdf->getPageContent(1);

When I execute this code it says cannot call the method getPageContent on undefined variable. Additionally I tried print the $pdf that is empty.

THe headers are listed in each page.

11.05.2007 at 01:31PM PST, ID: 20219695

Rank: Genius

Adam314:

what is the output from this:
...
my $pdf = CAM::PDF->new($filename) or die "Could not create CAM::PDF:\n $!\n $@\n";
...

11.05.2007 at 01:43PM PST, ID: 20219775

saibsk:

It says no such file or directory. I am in the /export/home/user/Students directory. My perl script and the pdf file are both located in the Students dir. I tried both giving the full path to the file and then executing and just with the file name. Gives the same error.

11.05.2007 at 01:55PM PST, ID: 20219869

Rank: Genius

Adam314:

Do you have proper permissions to on the directory and file?

my $fileName = 'test.pdf';
die "File does not exist\n" unless -e $fileName;
die "File is not readable\n" unless -r $fileName;
my $pdf = CAM::PDF->new($filename);
die "Could not create CAM::PDF:\n $!\n $@\n" unless $pdf;

11.05.2007 at 02:09PM PST, ID: 20219966

saibsk:

Use of uninitialized value in pattern match (m//) at /usr/perl5/site_perl/5.8.4/CAM/PDF.pm line 293.
Use of uninitialized value in length at /usr/perl5/site_perl/5.8.4/CAM/PDF.pm line 303.
Use of uninitialized value in string eq at /usr/perl5/site_perl/5.8.4/CAM/PDF.pm line 306.
Use of uninitialized value in open at /usr/perl5/site_perl/5.8.4/CAM/PDF.pm line 320.
Use of uninitialized value in concatenation (.) or string at /usr/perl5/site_perl/5.8.4/CAM/PDF.pm line 322.
Could not create CAM::PDF:
No such file or directory

prints the above

11.06.2007 at 07:22AM PST, ID: 20224561

Rank: Genius

Adam314:

Maybe the CAM::PDF module isn't installed properly, or you have an old version. Try upgrading to the latest, or reinstalling.

11.06.2007 at 08:19AM PST, ID: 20225062

saibsk:

I got the pdftotext tool installed on my system. For now I am able to convert the file to text.

Accepted Solution

01.10.2008 at 02:25PM PST, ID: 20632048

Vee_Mod:

A request has been made in Community Support to close this question:
http://www.experts-exchange.com/Q_23073853.html

If there are no objections, a moderator will finalize this question in approximately 4 days as follows:
PAQ with refund using {http:#a20225062}

Please leave any recommendations here.

Vee_Mod
Community Support Moderator

Vee_Mod

01.14.2008 at 03:38PM PST, ID: 20658465

Closed, 500 points refunded.
Vee_Mod
Community Support Moderator

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