How To Merge 2 PDF in MPDF Using PHP Laravel - php

Question

I want to Merge 2 pdf stored in my storage folder of Laravel app. i only want to merge using MPDF.
i've a function create pdf. From that Function I created a pdf
Here is the Function to create a PDF.
public function generateProjectPDF(){
$projects = Projects::all();
$file_name = 'Project_Task'.rand(1,1000).'.pdf';
$mpdf = new \Mpdf\Mpdf();
$mpdf->WriteHTML(view('pdf.projectpdf',['projects'=>$projects]));
$mpdf->Output('storage/app/files/'.$file_name,'F');
DB::table('merge_pdf')->insert(
[
'name' => $file_name,
]
);
}
Now I have a function to merge 2 pdf.
Now i don't know how to merge the two pdfs.
public function mergePDF(){
$content1 = Storage::get('files/filename.pdf');
$content1 = Storage::get('files/filename.pdf');
}

Answer 1

Change your mergePDF function accordingly.
public function mergePDF(){
$mpdf = new \Mpdf\Mpdf();
$mpdf->SetImportUse(); //only with mPDF <8.0
$pagecount1 = $mpdf->SetSourceFile('file1.pdf');
$tplId1 = $mpdf->importPage($pagecount1);
$mpdf->useTemplate($tplId1);
$pagecount2 = $mpdf->SetSourceFile('file2.pdf');
$tplId2 = $mpdf->importPage($pagecount2);
$mpdf->useTemplate($tplId2);
$mpdf->Output();
}
For more details , please refer https://mpdf.github.io/reference/mpdf-functions/importpage-v8.html

Answer 2

merge multiple pdf using Mpdf library
merge pdf function
function mergePdf($pdfArr){
$pdf = new Mpdf();
foreach($pdfArr as $currentPdf){
$pagecount = $pdf->SetSourceFile($currentPdf);
for($i = 1; $i <= $pagecount; $i++){
$pdf->AddPage();
$tplId = $pdf->importPage($i);
$pdf->useTemplate($tplId);
}
}
//direct show on browser
$pdf->Output();
//spacefic location save file
$outputpath = 'location/output.pdf';
$pdf->Output($outputpath, 'F');
}
Call this function
mergePdf(['path/pdf1.pdf','path/pdf2.pdf', .....])