Parsing PDF file

pankaj_it09 has asked for the wisdom of the Perl Monks concerning the following question:

I am trying to parse PDF files as below :

    my ($fileName) = @_;
    
    unless(CAM::PDF->new($fileName))
    {
        return;
    }
    my $pdf = CAM::PDF->new($fileName);
    
    my $numOfPages = $pdf->numPages();
    
    for(my $i=1; $i<=$numOfPages;$i++)
    {
        $text = $pdf->getPageText($i);
    }
    $pdf->cleanse();
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The following is the error :

Expected stream open tag
20 stream^Mq^Mq^M323 0 0 188 0 0 cm^M /I1 Do^MQ^M...
[download]

Some PDF files are getting parsed but some are not.

Comment on Parsing PDF file Select or Download Code

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Re: Parsing PDF file by Corion (Patriarch) on Nov 19, 2008 at 08:42 UTC
My guess is that the PDF files are broken. The `^M` displayed in the error message could indicate that the file was transferred via `ftp` using `ASCII` mode and that broke the PDF files. There is nothing Perl can do to help.	[reply] [d/l] [select]
Re: Parsing PDF file by moritz (Cardinal) on Nov 19, 2008 at 08:41 UTC
Have you checked that the PDFs are actually sane (ie not damaged)? Can other programs open them? And have you read section `COMPATIBILITY` of the manual? Is the version of your PDF file supported?	[reply] [d/l]
Re: Parsing PDF file by pankaj_it09 (Scribe) on Nov 16, 2009 at 13:37 UTC
Is it required to destroy the PDF object ? Which one of the below routines to use to destroy the PDF object :- `$doc->getValue($object)` For INTERNAL use Dereference a data object, return a value. Given an node object of any kind, returns raw scalar object: hashref, arrayref, string, number. This function follows all references, and descends into all objects. `$doc->getObjValue($objectnum)` For INTERNAL use Dereference a data object, and return a value. Behaves just like the getValue() function, but used when all you know is the object number. `$doc->dereference($objectnum)` `$doc->dereference($name, $pagenum)` For INTERNAL use Dereference a data object, return a PDF object as a node. This function makes heavy use of the internal object cache. Most (if not all) object requests should go through this function. $name should look something like '/R12'.	[reply] [d/l] [select]