Accessibility (PDF/UA)

★ Pro — Commercial License Required

PDF/UA accessibility features require the Pro package.

TCPDF-Next Pro provides full PDF/UA (ISO 14289-2) support for creating accessible PDF documents that work with screen readers and assistive technologies.

Enabling Tagged PDF

use Yeeefang\TcpdfNext\Core\Document;

$pdf = Document::create()
    ->setTaggedPdf(true)
    ->setLanguage('en-US');

Structure Tree

The StructureTreeManager automatically builds the document structure tree as you use structure tags:

$pdf->openTag('H1')
    ->cell(0, 10, 'Annual Report 2026', newLine: true)
    ->closeTag('H1')

    ->openTag('P')
    ->multiCell(0, 6, 'This report provides an overview...')
    ->closeTag('P');

Supported Structure Elements

Element	Purpose
Document	Root structure element
Part, Sect	Document sections
H1 -- H6	Headings
P	Paragraph
Table, TR, TH, TD	Table structure
L, LI	List structure
Figure	Images and diagrams
Link	Hyperlinks
Span	Inline content

Role Mapping

Map custom tag names to standard PDF structure types:

$pdf->setRoleMap([
    'invoice-header' => 'H1',
    'line-item' => 'TR',
    'summary' => 'P',
]);

Alt Text for Images

$pdf->image('/path/to/chart.png', 10, 10, 100, 80, alt: 'Revenue chart showing Q1-Q4 growth');

Combined PDF/A-4 + PDF/UA

For maximum compliance, combine archival and accessibility:

$pdf = Document::create()
    ->enablePdfA(PdfAVersion::A4)
    ->setTaggedPdf(true)
    ->setLanguage('en-US');