generated from jric11/baseProject
98 lines
3.1 KiB
PHP
98 lines
3.1 KiB
PHP
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<?php
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/**
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* E045_encryption_and_permissions.php
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*
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* @since 2026-04-27
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* @category Library
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* @package Pdf
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* @author Nicola Asuni <info@tecnick.com>
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* @copyright 2002-2026 Nicola Asuni - Tecnick.com LTD
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* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
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* @link https://github.com/tecnickcom/tc-lib-pdf
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*
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* This file is part of tc-lib-pdf software library.
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*/
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// NOTE: local file reads (images, fonts, attachments) are restricted to an allowlist of
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// trusted paths that covers this package tree, so run the examples in place. To read assets
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// from other locations, list them in the 'allowedPaths' entry of the fileOptions constructor
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// parameter (see E047_remote_resources_security.php).
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// NOTE: run make fonts in the project root to generate the dependencies and example fonts.
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// autoloader when using Composer
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require __DIR__ . '/../vendor/autoload.php';
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// define fonts directory
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\define('K_PATH_FONTS', \realpath(__DIR__ . '/../vendor/tecnickcom/tc-lib-pdf-font/target/fonts'));
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// autoloader when using RPM or DEB package installation
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//require ('/usr/share/php/Com/Tecnick/Pdf/autoload.php');
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$fileId = \md5('E045_encryption_and_permissions');
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$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
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enabled: true,
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file_id: $fileId,
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mode: 2,
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permissions: ['modify', 'copy', 'annot-forms', 'assemble'],
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user_pass: 'demo-user',
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owner_pass: 'demo-owner',
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);
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// main TCPDF object
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$pdf = new \Com\Tecnick\Pdf\Tcpdf(
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unit: \Com\Tecnick\Pdf\Page\Unit::Millimeter,
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isunicode: true,
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subsetfont: false,
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compress: true,
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mode: \Com\Tecnick\Pdf\PdfConformance::None,
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objEncrypt: $encrypt,
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);
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// ----------
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$pdf->setCreator('tc-lib-pdf');
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$pdf->setAuthor('Nicola Asuni');
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$pdf->setSubject('tc-lib-pdf example: 045');
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$pdf->setTitle('Encryption and Permissions');
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$pdf->setKeywords('TCPDF tc-lib-pdf encryption permissions user password owner password rights');
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$pdf->setPDFFilename('E045_encryption_and_permissions.pdf');
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$pdf->setViewerPreferences(['DisplayDocTitle' => true]);
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$pdf->enableDefaultPageContent();
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// ----------
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// Insert fonts
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$bfont = $pdf->font->insert($pdf->pon, 'helvetica', '', 10);
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$page01 = $pdf->addPage();
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$pdf->page->addContent($bfont['out']);
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$html = <<<HTML
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<h1>Encryption and Permissions</h1>
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<p>This document demonstrates PDF encryption and permission controls using tc-lib-pdf.
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The file is protected with a user password (<em>demo-user</em>) and an owner password (<em>demo-owner</em>).
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Encryption restricts unauthorized access while the owner password grants full control.
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The allowed permissions for this document are: <strong>modify</strong>, <strong>copy</strong>,
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<strong>annot-forms</strong>, and <strong>assemble</strong>.
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All other operations, such as printing, are denied.</p>
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HTML;
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$pdf->addHTMLCell(html: $html, posx: 20, posy: 10, width: 180);
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// ----------
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// get PDF document as raw string
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$rawpdf = $pdf->getOutPDFString();
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// Various output modes:
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//$pdf->savePDF(\dirname(__DIR__).'/target', $rawpdf);
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$pdf->renderPDF(rawpdf: $rawpdf);
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//$pdf->downloadPDF($rawpdf);
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//echo $pdf->getMIMEAttachmentPDF($rawpdf);
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