Merge PDF files with PHP [closed]

Question

My concept is - there are 10 pdf files in a website. User can select some pdf files and then select merge to create a single pdf file which contains the selected pages. How can i do this with php?

Answer 1

Codes using in PDFMerger are deprecated in PHP5 version. I forked and fixed the codes to work with PHP 5. You can grab at my github account https://github.com/myokyawhtun/PDFMerger

Answer 2

i suggest PDFMerger from github.com, so easy like ::

include 'PDFMerger.php';

$pdf = new PDFMerger;

$pdf->addPDF('samplepdfs/one.pdf', '1, 3, 4')
    ->addPDF('samplepdfs/two.pdf', '1-2')
    ->addPDF('samplepdfs/three.pdf', 'all')
    ->merge('file', 'samplepdfs/TEST2.pdf'); // REPLACE 'file' WITH 'browser', 'download', 'string', or 'file' for output options

Answer 3

I have tried similar issue and works fine, try it. It can handle different orientations between PDFs.

    // array to hold list of PDF files to be merged
    $files = array("a.pdf", "b.pdf", "c.pdf");
    $pageCount = 0;
    // initiate FPDI
    $pdf = new FPDI();

    // iterate through the files
    foreach ($files AS $file) {
        // get the page count
        $pageCount = $pdf->setSourceFile($file);
        // iterate through all pages
        for ($pageNo = 1; $pageNo <= $pageCount; $pageNo++) {
            // import a page
            $templateId = $pdf->importPage($pageNo);
            // get the size of the imported page
            $size = $pdf->getTemplateSize($templateId);

            // create a page (landscape or portrait depending on the imported page size)
            if ($size['w'] > $size['h']) {
                $pdf->AddPage('L', array($size['w'], $size['h']));
            } else {
                $pdf->AddPage('P', array($size['w'], $size['h']));
            }

            // use the imported page
            $pdf->useTemplate($templateId);

            $pdf->SetFont('Helvetica');
            $pdf->SetXY(5, 5);
            $pdf->Write(8, 'Generated by FPDI');
        }
    }

Answer 4

This worked for me on Windows

1. download PDFtk free from https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/
   
2. drop folder (PDFtk) into the root of c:
   

3. add the following to your php code where $file1 is the location and name of the first PDF file, $file2 is the location and name of the second and $newfile is the location and name of the destination file

   $file1 = ' c:\\\www\\\folder1\\\folder2\\\file1.pdf';  
   $file2 = ' c:\\\www\\\folder1\\\folder2\\\file2.pdf';  
   $file3 = ' c:\\\www\\\folder1\\\folder2\\\file3.pdf';   
   
   $command =  'cmd /c C:\\\pdftk\\\bin\\\pdftk.exe '.$file1.$file2.$newfile;
   $result = exec($command);
   

Answer 5

Below is the php PDF merge command.

$fileArray= array("name1.pdf","name2.pdf","name3.pdf","name4.pdf");

$datadir = "save_path/";
$outputName = $datadir."merged.pdf";

$cmd = "gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=$outputName ";
//Add each pdf file to the end of the command
foreach($fileArray as $file) {
    $cmd .= $file." ";
}
$result = shell_exec($cmd);

I forgot the link from where I found it, but it works fine.

Answer 6

I created an abstraction layer over FPDI (might accommodate other engines). I published it as a Symfony2 bundle depending on a library, and as the library itself.

The bundle

The Library

usage:

public function handlePdfChanges(Document $document, array $formRawData)
{
    $oldPath = $document->getUploadRootDir($this->kernel) . $document->getOldPath();
    $newTmpPath = $document->getFile()->getRealPath();

    switch ($formRawData['insertOptions']['insertPosition']) {
        case PdfInsertType::POSITION_BEGINNING:
            // prepend 
            $newPdf = $this->pdfManager->insert($oldPath, $newTmpPath);
            break;
        case PdfInsertType::POSITION_END: 
            // Append
            $newPdf = $this->pdfManager->append($oldPath, $newTmpPath);
            break;
        case PdfInsertType::POSITION_PAGE: 
            // insert at page n: PdfA={p1; p2; p3}, PdfB={pA; pB; pC} 
            // insert(PdfA, PdfB, 2) will render {p1; pA; pB; pC; p2; p3} 
            $newPdf = $this->pdfManager->insert(
                    $oldPath, $newTmpPath, $formRawData['insertOptions']['pageNumber']
                );
            break;
        case PdfInsertType::POSITION_REPLACE: 
            // does nothing. overrides old file.
            return;
            break;
    }
    $pageCount = $newPdf->getPageCount();
    $newPdf->renderFile($mergedPdfPath = "$newTmpPath.merged");
    $document->setFile(new File($mergedPdfPath, true));
    return $pageCount;
}