EaDesgin/magento2-pdf-generator2

<?php
/**
 * Copyright © EAdesign by Eco Active S.R.L.,All rights reserved.
 * See LICENSE for license details.
 */

namespace Eadesigndev\Pdfgenerator\Model\Source;

use Magento\Framework\View\Model\PageLayout\Config\BuilderInterface;

/**
 * Class PageLayout
 */
class TemplatePaperForm extends AbstractSource
{
    /**
     * @var \Magento\Framework\View\Model\PageLayout\Config\BuilderInterface
     */
    private $pageLayoutBuilder;

    /**
     * Constructor
     *
     * @param BuilderInterface $pageLayoutBuilder
     */
    public function __construct(BuilderInterface $pageLayoutBuilder)
    {
        $this->pageLayoutBuilder = $pageLayoutBuilder;
    }

    /**
     * Paper types
     */
    const TEMAPLATE_PAPER_FORM_A4 = 1;
    const TEMAPLATE_PAPER_FORMAT_A3 = 2;
    const TEMAPLATE_PAPER_FORMAT_A5 = 3;
    const TEMAPLATE_PAPER_FORMAT_A6 = 4;
    const TEMAPLATE_PAPER_FORMAT_LETTER = 5;
    const TEMAPLATE_PAPER_FORMAT_LEGAL = 6;

    /**
     * Prepare post's statuses.
     *
     * @return array
     */
    public function getAvailable()
    {
        return [
            self::TEMAPLATE_PAPER_FORM_A4 => 'A4',
            self::TEMAPLATE_PAPER_FORMAT_A3 => 'A3',
            self::TEMAPLATE_PAPER_FORMAT_A5 => 'A5',
            self::TEMAPLATE_PAPER_FORMAT_A6 => 'A6',
            self::TEMAPLATE_PAPER_FORMAT_LETTER => 'Letter',
            self::TEMAPLATE_PAPER_FORMAT_LEGAL => 'Legal',
        ];
    }
}