#!/usr/bin/env raku
use v6;

use PDF;
use PDF::Class;
use FDF;

my subset FDF-File of Str where !.defined || .IO.extension.lc ~~ 'fdf'|'json';
my subset PDF-File of Str where !.defined || .IO.extension.lc ~~ 'pdf';
my subset PDF-or-FDF-File where PDF-File|FDF-File;

my %*SUB-MAIN-OPTS =
  :named-anywhere,    # allow named variables at any location 
;

#| list all fields and current values
multi sub MAIN(
    PDF-or-FDF-File:D $infile,
    Bool :list($) where .so,  #= list mode
    Bool :$labels,            #= display labels, rather than keys
    Str  :$password = '',     #= password for the PDF, if encrypted
    ) {
    my $class = $infile ~~ FDF-File ?? FDF !! PDF::Class;
    my PDF $doc = $class.open($infile, :$password);
    my @fields = $doc.fields;

    if @fields {
        for @fields {
            my $key = .TU if $labels;
            $key //= .T // '???';
            # value is commonly a text-string or name, but can
            # also be dictionary object (e.g. PDF::Signature)
            my $value = (.V // '').perl;
            say "$key: $value";
        }
    }
    else {
	warn "this {$doc.type} file has no form fields";
    }
}

sub get-pdf-fdf($file, $file2) {
    my PDF-File $pdf;
    my FDF-File $fdf;
    # allow PDF and FDF files in any order. only require one and guess the other

    given $file {
        when PDF-File {
            $pdf = $_;
            $fdf = $file2
                // .substr(0, *-4) ~ (.ends-with('.PDF') ?? '.FDF' !! '.fdf');
        }
        when FDF-File {
            $fdf = $_;
            $pdf = $file2
                // .substr(0, *-4) ~ (.ends-with('.FDF') ?? '.PDF' !! '.pdf');
        }
    }

    $pdf, $fdf;
}

#| update PDF, setting specified fields from imported FDF or name-value pairs
multi sub MAIN(
    Str $file,
    Str $file2?,
    Bool :import($)! where .so,
    PDF-File :$save-as,
    Bool :$appearances = True,  #= import actions 
    Bool :$actions = True,      #= import appearances
    Bool :$drm = True,          #= enforce DRM
    Str  :$password = '',       #= password for the PDF, if encrypted
) {
    (my PDF-File $pdf-file, my FDF-File $fdf-file) = get-pdf-fdf($file, $file2);

    my PDF::Class $pdf .= open($pdf-file, :$password);
    my FDF $fdf .= open: $fdf-file;

    $fdf.merge: :to($pdf), :$appearances, :$actions, :$drm;

    with $save-as {
        $pdf.save-as( $_ );
    }
    else {
        $pdf.update;
    }
}

#| export acroform fields from a PDF to an FDF file
multi sub MAIN(
    Str $file,
    Str $file2?,
    Bool :export($)! where .so, #= export mode
    Bool :$appearances = True,  #= export appearancs
    Bool :$actions = True,      #= export actions
    Str  :$password = '',       #= password for the PDF, if encrypted
    *%fill,
    ) {
    (my PDF-File $pdf-file, my FDF-File $fdf-file) = get-pdf-fdf($file, $file2);
    my PDF::Class $pdf .= open($pdf-file, :$password);
    my FDF $fdf .= new();
    $fdf.merge: :from($pdf), :$appearances, :$actions, :%fill;

    note "saving $fdf-file...";
    $fdf.save-as: $fdf-file;
}



head

fdf-fields.raku --list infile.[pdf|fdf]
fdf-fields.raku --import infile.fdf [infile.pdf] [--save-as outfile.pdf] [options]
fdf-fields.raku --export outfile.fdf [infile.pdf]


Options
  --list infile.[pdf|fdf]                               % list fields and current values
  --import infile.fdf [outfile.pdf]                     % import fields from an fdf file
    --/actions                                          % - don't import JavaScript actions
    --/appearances                                      % - don't import appearance dictionaries
  --export outfile.fdf [infile.pdf] :key=new-value ...  % export PDF fields to an FDF


General Options:
  --password                 % provide user/owner password for an encrypted PDF
  --save-as=file.[fdf|pdf]   % save to a new file


List, import, export or fill FDF form fields.


root

README

React

=begin React :component<HeaderCol> :id<menu> 
=para L<Documentation|/doc/introduction>
=para L<Modules| /mods>
=para L<Examples| file:../examples/index.podlite>
=para L<Download |file:../download/index.podlite>
=para L<About|file:../about/index.podlite>
=para 🔍 K<⌘K>/K<ctrl-K>
=end React


=begin React :component<HeaderCol> :id<footer>  
=begin nested :!nested
=item1 B<Language>
    =item2 L<Get started|file:../getting-started/getting-started.podlite>
    =item2 L<Why Raku?|/doc/language/faq#Why-should-I-learn-Raku-What's-so-great-about-it>
    =item2 L<Try Raku|https://glot.io/new/raku>
    =item2 L<Raku cheat sheet|https://github.com/Raku/mu/blob/master/docs/Perl6/Cheatsheet/cheatsheet.txt>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<Raku on Exercism|https://exercism.org/tracks/raku>
    =item2 L<Wikipedia|https://en.wikipedia.org/wiki/Raku_(programming_language)>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=end nested
=begin nested :!nested

=item1 B<L<Documentation|/doc>>
    =item2 L<Getting started, Migration guides from other languages, & Tutorials | file:../doc/introduction.podlite>
    =item2 L<Language References|file:../doc/reference.podlite>
    =item2 L<Type Reference| file:../doc/types.podlite>
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    =item2 L<The list of all documents|file:../doc/index.podlite>

=item1 B<Resources>
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    =item2 L<Books |https://perl6book.com/>
    =item2 L<Rosetta Code | https://www.raku.org/community/rosettacode>

=end nested
=begin nested :!nested

=item1 B<Resoures>
    =item2 L<Download | file:../download/index.podlite>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
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=item1 B<Learning>
    =item2 L<The Raku Guide|https://raku.guide/>
    =item2 L<Wikibook |https://en.wikibooks.org/wiki/Raku_Programming>
    =item2 L<Books |https://perl6book.com/>
    =item2 L<Rosetta Code | https://www.raku.org/community/rosettacode>
    =item2 L<Learn Raku in Y minutes|https://learnxinyminutes.com/docs/raku/>
    =item2 L<Golfing |https://github.com/AlexDaniel/raku-golf-cheatsheet>
=end nested
=begin nested :!nested

=item1 B<Explore>
    =item2 L<Raku Blog Aggregator|https://planet.raku.org/>
    =item2 L<Rakudo Weekly|https://rakudoweekly.blog/>
    =item2 L<The Weekly Challenge |https://perlweeklychallenge.org/>
    =item2 L<Raku Advent Calendar|https://raku-advent.blog/>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=end nested
=end React


=begin React :component<CookieConsent> :id<CookieConsent> :buttonCaption("Got it!")
=para
This website uses cookies for analytics.
=end React


fdf-fields

NAME

SYNOPSIS

DESCRIPTION

FDF v0.0.3

Authors

License

Dependencies

Test Dependencies

Provides

Documentation