php-tcpdfHow can I use PHP and TCPDF to merge multiple PDFs into one?

Using PHP and TCPDF, you can easily merge multiple PDFs into one. The following example code will combine two PDFs into a single PDF.

<?php
// Include the TCPDF library
require_once('tcpdf/tcpdf.php');

// Create a new TCPDF object
$pdf = new TCPDF();

// Open the first PDF
$pdf->setSourceFile('first.pdf');

// Import the first page of the first PDF
$tplIdx = $pdf->importPage(1);

// Add the first page of the first PDF
$pdf->addPage();
$pdf->useTemplate($tplIdx);

// Open the second PDF
$pdf->setSourceFile('second.pdf');

// Import the first page of the second PDF
$tplIdx = $pdf->importPage(1);

// Add the first page of the second PDF
$pdf->addPage();
$pdf->useTemplate($tplIdx);

// Output the merged PDF
$pdf->Output('merged.pdf', 'F');

This code will create a single PDF called merged.pdf containing the first page of first.pdf followed by the first page of second.pdf.

The code consists of the following parts:

1. Include the TCPDF library - require_once('tcpdf/tcpdf.php');
2. Create a new TCPDF object - $pdf = new TCPDF();
3. Open the first PDF - $pdf->setSourceFile('first.pdf');
4. Import the first page of the first PDF - $tplIdx = $pdf->importPage(1);
5. Add the first page of the first PDF - $pdf->addPage(); $pdf->useTemplate($tplIdx);
6. Open the second PDF - $pdf->setSourceFile('second.pdf');
7. Import the first page of the second PDF - $tplIdx = $pdf->importPage(1);
8. Add the first page of the second PDF - $pdf->addPage(); $pdf->useTemplate($tplIdx);
9. Output the merged PDF - $pdf->Output('merged.pdf', 'F');

For more information on how to use TCPDF to merge PDFs, please refer to the TCPDF documentation.

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