Mpdf.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Mpdf\Mpdf;
use App\Utils\Paths;

class PdfController extends Controller
{
    public function generatePdf()
    {
        $xmlFilePath = Paths::clearedInvoice('invoice_57035_79394.xml', 'local');
        if (!file_exists($xmlFilePath)) {
            abort(404, 'XML file not found.');
        }

        // Crucial: Set format to A3 *before* creating the mPDF instance if you want A3.
        $format = 'A4'; // Or 'A4', etc.  Make this consistent.
        $mpdf = new Mpdf([
            'format'    => $format,  // Use the $format variable
            'mode'      => 'utf-8', // Explicitly set UTF-8 mode (important for special characters)
            'PDFA'      => true,
            'PDFAauto'  => true,
            // 'pdf_version' => '1.7',
            'debug' => true, // Enable debugging to see if any errors are reported.
            // Below Zeeshan shared file
            'default_font_size' => 0,
            'default_font' => 'sans serif',
            'orientation' => 'P',
            'tempDir' => public_path(),
        ]);

        $mpdf->SetTitle('PDF/A-3 Compliant Document');
        $mpdf->SetAuthor('Saudi Brokers');
        $mpdf->SetCreator('Saudi Brokers');
        $mpdf->SetSubject('Invoice Document');
        $mpdf->SetKeywords('Invoice, PDF/A-3, Compliance');
        $mpdf->showImageErrors = true;
        $mpdf->pdf_version = '1.7';


        $mpdf->defaultPagebreakStyle = 'sRGB IEC61966-2.1';
        $mpdf->SetDefaultImageAlpha(1); // Removes transparency from images
        $mpdf->showOCG = false; // Disable optional content groups (OCG)


        $mpdf->AddPage();

        $html = '<h1 style="text-align: center;">PDF/A-3 Compliant Document</h1>';
        $html .= '<p>This document is generated using mPDF and is PDF/A-3 compliant with an attached XML file.</p>';
        $mpdf->WriteHTML($html);


        $xmlData = file_get_contents($xmlFilePath);

        $mpdf->SetAssociatedFiles([
            // [
            //     'name'          => basename($xmlFilePath), // Use basename for the filename
            //     'filename'      => basename($xmlFilePath),
            //     'description'   => 'XML Invoice Attachment',
            //     'mime'          => 'application/xml',
            //     'relationship'  => 'Data', // or 'Alternative' if you're also embedding the XML
            //     'AFRelationship' => 'Alternative', // Only needed if the relationship is 'Alternative'.
            //     'data'          => $xmlData,
            //     // 'path'          => $xmlFilePath,  // Remove the path.  It might be causing issues.
            // ]
            [
                'name'          => basename($xmlFilePath),
                'description'   => 'XML Invoice Attachment',
                'mime'          => 'application/xml',
                'AFRelationship'=> 'Alternative',
                'content'          => $xmlData,
            ]
        ]);

        $rdf  = '<rdf:Description rdf:about="" xmlns:zf="urn:ferd:pdfa:CrossIndustryDocument:invoice:1p0#">'."\n";
        $rdf .= '  <zf:DocumentType>INVOICE</zf:DocumentType>'."\n";
        $rdf .= '  <zf:DocumentFileName>ZUGFeRD-invoice.xml</zf:DocumentFileName>'."\n";
        $rdf .= '  <zf:Version>1.0</zf:Version>'."\n";
        $rdf .= '  <zf:ConformanceLevel>BASIC</zf:ConformanceLevel>'."\n";
        $rdf .= '</rdf:Description>'."\n";

        $mpdf->SetAdditionalXmpRdf($rdf);

        // Output and return
        $pdfContent = $mpdf->Output('invoice.pdf', 'S'); // Give a filename for download
        return response($pdfContent, 200)
            ->header('Content-Type', 'application/pdf')
            ->header('Content-Disposition', 'attachment; filename="invoice.pdf"'); // Force download
    }
}