NAME
    App::pdfresize - Resize each page of PDF file to a new dimension

VERSION
    This document describes version 0.001 of App::pdfresize (from Perl
    distribution App-pdfresize), released on 2024-08-20.

SYNOPSIS
     # Use via pdfsize CLI script

FUNCTIONS
  pdfresize
    Usage:

     pdfresize(%args) -> [$status_code, $reason, $payload, \%result_meta]

    Resize each page of PDF file to a new dimension.

    Examples:

    *   Shrink PDF dimension to 25% original size (half the width, half the
        height):

         pdfresize(filename => "foo.pdf", resize => "50%x50%");

        Result:

         [
           500,
           "Function died: system(pdftk /home/u1/repos/perl-App-pdfresize/foo.pdf burst) failed: 256 (exited with code 1) at /home/u1/perl5/perlbrew/perls/perl-5.38.2/lib/site_perl/5.38.2/IPC/System/Options.pm line 440.\n",
           undef,
           {
             logs => [
               {
                 file    => "/home/u1/perl5/perlbrew/perls/perl-5.38.2/lib/site_perl/5.38.2/Perinci/Access/Schemeless.pm",
                 func    => "Perinci::Access::Schemeless::action_call",
                 line    => 499,
                 package => "Perinci::Access::Schemeless",
                 time    => 1724149492,
                 type    => "create",
               },
             ],
           },
         ]

    *   Shrink PDF page height to 720p, and use quality 40, name an output:

         pdfresize(
             filename => "foo.pdf",
           resize => "x720>",
           output_filename => "foo-resized.pdf",
           quality => 40
         );

        Result:

         [
           500,
           "Function died: system(pdftk /home/u1/repos/perl-App-pdfresize/foo.pdf burst) failed: 256 (exited with code 1) at /home/u1/perl5/perlbrew/perls/perl-5.38.2/lib/site_perl/5.38.2/IPC/System/Options.pm line 440.\n",
           undef,
           {
             logs => [
               {
                 file    => "/home/u1/perl5/perlbrew/perls/perl-5.38.2/lib/site_perl/5.38.2/Perinci/Access/Schemeless.pm",
                 func    => "Perinci::Access::Schemeless::action_call",
                 line    => 499,
                 package => "Perinci::Access::Schemeless",
                 time    => 1724149492,
                 type    => "create",
               },
             ],
           },
         ]

    This utility first splits a PDF to individual pages (using pdftk), then
    converts each page to JPEG and resizes it (using ImageMagick's convert),
    then converts back each page to PDF and reassembles the resized pages to
    a new PDF.

    This function is not exported.

    Arguments ('*' denotes required arguments):

    *   filename* => *filename*

        (No description)

    *   output_filename => *filename*

        (No description)

    *   quality => *int*

        (No description)

    *   resize* => *filename*

        ImagaMagick resize notation, e.g. "50%x50%", "x720>".

        See ImageMagick documentation (e.g. convert) for more details, or
        the documentation of calc-image-resized-size,
        image-resize-notation-to-human for lots of examples.

    Returns an enveloped result (an array).

    First element ($status_code) is an integer containing HTTP-like status
    code (200 means OK, 4xx caller error, 5xx function error). Second
    element ($reason) is a string containing error message, or something
    like "OK" if status is 200. Third element ($payload) is the actual
    result, but usually not present when enveloped result is an error
    response ($status_code is not 2xx). Fourth element (%result_meta) is
    called result metadata and is optional, a hash that contains extra
    information, much like how HTTP response headers provide additional
    metadata.

    Return value: (any)

HOMEPAGE
    Please visit the project's homepage at
    <https://metacpan.org/release/App-pdfresize>.

SOURCE
    Source repository is at
    <https://github.com/perlancar/perl-App-pdfresize>.

AUTHOR
    perlancar <perlancar@cpan.org>

CONTRIBUTING
    To contribute, you can send patches by email/via RT, or send pull
    requests on GitHub.

    Most of the time, you don't need to build the distribution yourself. You
    can simply modify the code, then test via:

     % prove -l

    If you want to build the distribution (e.g. to try to install it locally
    on your system), you can install Dist::Zilla,
    Dist::Zilla::PluginBundle::Author::PERLANCAR,
    Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two
    other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps
    required beyond that are considered a bug and can be reported to me.

COPYRIGHT AND LICENSE
    This software is copyright (c) 2024 by perlancar <perlancar@cpan.org>.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.

BUGS
    Please report any bugs or feature requests on the bugtracker website
    <https://rt.cpan.org/Public/Dist/Display.html?Name=App-pdfresize>

    When submitting a bug or request, please include a test-file or a patch
    to an existing test-file that illustrates the bug or desired feature.