Are there alternative solutions or libraries that can be used to merge PDF files in PHP other than TCPDF?

One alternative solution for merging PDF files in PHP is to use the FPDI library in conjunction with FPDF. FPDI allows you to import existing PDF documents into FPDF, which can then be used to merge multiple PDF files into one. 

// Include the FPDI and FPDF libraries
require_once('fpdf/fpdf.php');
require_once('fpdi/fpdi.php');

// Create a new instance of FPDF
$pdf = new FPDI();

// Add a page for each PDF file to be merged
$pdf->AddPage();
$pdf->setSourceFile('file1.pdf');
$tplIdx = $pdf->importPage(1);
$pdf->useTemplate($tplIdx, 0, 0);

$pdf->AddPage();
$pdf->setSourceFile('file2.pdf');
$tplIdx = $pdf->importPage(1);
$pdf->useTemplate($tplIdx, 0, 0);

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

Keywords

PDF merge PHP libraries alternative

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