Zlib to uncompress pdf file

pankajit09

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 use strict ;

    use warnings ;
 
    use Compress::Zlib ;
 
    my $x = inflateInit() or die "Cannot create a inflation stream\n" ;
 
    my $input = '' ;
 
    open(INPUTFILE,"E:\\test.pdf") or die "Can't create the output file : $!";

    open(OUTPUTFILE,'>',"E:\\test1.txt") or die "Can't create the output file : $!";
 
    binmode INPUTFILE;

    binmode OUTPUTFILE;
 
    my ($output, $status) ;

    while (read(INPUTFILE, $input, 4096))

    {

        ($output, $status) = $x->inflate(\$input) ;
 
    print OUTPUTFILE $output if $status == Z_OK or $status == Z_STREAM_END ;
 
        last if $status != Z_OK ;

    }
 
    close (INPUTFILE);

    close (OUTPUTFILE);
 
    die "inflation failed\n" unless $status == Z_STREAM_END;

When I print $status "data error" is getting printed.

How to uncompress the pdf file ?

KevinADC

if the pdf file were compressed I would think the extension would be .gz or other file extension that indicates it was compressed, like .zip.

numberwhun

If you are interested in playing around with PDF's, you may want to check out how some of the pdf modules on CPAN work.

I agree with Kevin though, pdf is not an extension that denotes compression. Just like a .jpg/.jpeg, the file may have its own type of compression, but the extension is not condusive with it and thus uncompress utilities have not effect.

Regards,

Jeff

Zlib to uncompress pdf file

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