Is it possible to merge multiple PDF files into one document using PHP?

Yes, it is possible to merge multiple PDF files into one document using PHP. One way to achieve this is by using the `FPDI` library in combination with `FPDF`. First, you need to install the library using Composer. Then, you can loop through each PDF file, import it using `FPDI`, and add it to a new PDF document using `FPDF`. 

// Install FPDI library using Composer
// composer require setasign/fpdi

require_once('vendor/autoload.php');

use setasign\Fpdi\Fpdi;

// Array of PDF files to merge
$pdfFiles = ['file1.pdf', 'file2.pdf', 'file3.pdf'];

// Initialize new FPDF instance
$pdf = new Fpdi();

// Merge PDF files
foreach ($pdfFiles as $file) {
    $pageCount = $pdf->setSourceFile($file);
    for ($pageNo = 1; $pageNo <= $pageCount; $pageNo++) {
        $templateId = $pdf->importPage($pageNo);
        $size = $pdf->getTemplateSize($templateId);
        $pdf->AddPage($size);
        $pdf->useTemplate($templateId);
    }
}

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

Keywords

PDF merge multiple files document PHP

Related Questions