#!/usr/bin/env perl6
use v6;
use PDF::Class;
use PDF::To::Cairo;

sub MAIN(
    Str $directory = '.',         #| directory to be scanned for PDFS
    Str :$previews = '.previews', #| where to place previews
    Str :$password = '',          #| password for the input PDF, if encrypted
    Bool :$trace = False,         #| trace execution
    ) {

    my $preview-dir = $directory.IO.add($previews);
    mkdir $preview-dir;

    for $directory.IO.dir( :test(/:i '.pdf' $/) ) -> $input {
        my $pdf = PDF::Class.open( $input, :$password);
        my $png-out = $preview-dir.IO.add: $input.IO.basename.subst(/:i '.pdf' $/, '-%03d.png');

        my UInt $pages = $pdf.page-count;

        for 1 .. $pages -> UInt $page-num {
            my $content = $pdf.page($page-num);
            $content.pre-graphics: {
                # insert a border
                .StrokeColor = :DeviceRGB[.5, .6, .6 ];
                .Rectangle: |$content.MediaBox;
                .Stroke;
            };
            my $filename = $png-out.sprintf($page-num);
            $*ERR.print: "saving $input page $page-num -> $filename...\n"; 
            $content.save-as-image($filename, :$trace);
        }
    }
}



head

pdf-previews.pl - Scan a directory for PDF files. Create PNG previews


pdf-previews.pl [directory] --previews=directory


Options:
  --password=str       # provide default password for encrypted PDF files


This program scans a directory of PDF files and generates previews.


The preciew files are of type PNG and are placed into a subdiretory named .previews. They are named .previews/<base-name>-<nnn>.png, where <nnn> is the page number.


** This is neither fast, or complete ** It exists to exercise other
components in the Perl 6 ecosystem, including PDF::Content and Cairo.


root

pdf2image

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>
    =item2 L<Miscellaneous| file:../doc/miscellaneous.podlite>
    =item2 L<FAQs (Frequently Asked Questions)|/doc/language/faq>
    =item2 L<Community|/doc/language/community>
    =item2 L<The list of all documents|file:../doc/index.podlite>

=item1 B<Resources>
    =item2 L<The Raku Guide|https://raku.guide/>
    =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|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=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


pdf-previews

NAME

SYNOPSIS

DESCRIPTION

SEE ALSO

AUTHOR

PDF::To::Cairo v0.0.2

Authors

License

Dependencies

Test Dependencies

Provides

Documentation