default to the
// non-embedded standard-14 Courier, so register an embedded monospace font and
// select it for those elements.
$pdf->font->insert($pdf->pon, 'dejavusansmono', '', 10);
$pdf->setHTMLMonospaceFont('dejavusansmono');

$pdf->addPage();
$pdf->page->addContent($font['out']);

$imgPath = __DIR__ . '/images/tcpdf_logo.jpg';

$html =
    '
PDF/UA — Auto-Tagged HTML Showcase
'
    . '
Mode: pdfua (generic alias). This document demonstrates every HTML'
    . ' element that addHTMLCell() auto-tags with a PDF structure role.'
    . ' No beginStructElem() calls are required: the library maps each HTML tag'
    . ' to its PDF role automatically when a PDF/UA mode is active. The generic'
    . ' pdfua alias behaves identically to pdfua1 for structure-tree'
    . ' output and defaults to PDF 1.7.
'
    . '
1 — Heading and Paragraph Roles
'
    . '
H3 Sub-heading
'
    . '
The h1-h6 tags map to PDF roles H1-H6.'
    . ' The p tag maps to P.'
    . ' Heading levels are clamped to prevent skipped levels in the structure tree,'
    . ' satisfying the PDF/UA requirement that no heading level may be skipped.
'
    . '
2 — Block Roles
'
    . '
“Tagged PDF is the foundation of accessible PDF. Without a'
    . ' well-formed structure tree, automated tools and assistive technologies cannot'
    . ' reliably interpret document content.” — ISO 14289-1 rationale
'
    . '
The blockquote tag maps to BlockQuote.
'
    . '
3 — List Structure (L > LI > Lbl + LBody)
'
    . '
Both ul and ol map to the L role.'
    . ' Each li auto-generates LI > {Lbl, LBody} children:
'
    . '
'
    . '
Unordered item — ul/li tags produce L/LI structure
'
    . '
The bullet character is placed in a Lbl child element
'
    . '
Body text is wrapped in a LBody child element
'
    . '
'
    . '
'
    . '
Ordered item — the number is auto-generated as the Lbl
'
    . '
Body text is again auto-wrapped in LBody
'
    . '
Nesting: L > LI > {Lbl, LBody}
'
    . '
'
    . '
4 — Figure, Image Alt-Text, and Caption
'
    . '
'
    . ''
    . ''
    . '
'
    . '
5 — Table Structure (Table > TR > TH/TD)
'
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . ''
    . '
Table 1 — HTML tags and their PDF/UA structure roles (auto-tagged by addHTMLCell)
HTML tag
PDF structure role
Category
h1–h6
H1–H6
Heading
p
P
Body
blockquote
BlockQuote
Body
pre
Code
Body
ul, ol
L
List
li
LI + Lbl + LBody
List
figure
Figure
Illustration
img (with alt)
Figure + /Alt
Illustration
figcaption, caption
Caption
Illustration
table
Table
Table
tr
TR
Table
td
TD
Table
th
TH
Table
a
Link
Inline
'
    . '
6 — Hyperlink (Link Role)
'
    . '
This sentence contains a'
    . ' hyperlink to the tc-lib-pdf repository;'
    . ' the a element is tagged with the Link structure role'
    . ' automatically. The link text is accessible to screen readers via the structure tree.
';

$pdf->addHTMLCell(html: $html, posx: 15, posy: 20, width: 180);

$rawpdf = $pdf->getOutPDFString();
$pdf->renderPDF(rawpdf: $rawpdf);