How Can I Merge Multiple PDFs into One Using PHP?

Merging PDF Files with PHP: A Comprehensive Guide

Q: How can PHP be used to merge multiple PDF files into a single, consolidated document?

A: PHP, with its robust capabilities, offers a solution for seamlessly merging PDF files. By integrating GhostScript, an external tool, the following PHP code can achieve the desired outcome:

$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 ";

// Append each PDF file to the command
foreach ($fileArray as $file) {
    $cmd .= $file . " ";
}

$result = shell_exec($cmd);

Note: This code requires GhostScript to be installed and accessible on the system where the PHP script is executed.

Key Considerations:

• GhostScript licensing: For commercial use, GhostScript requires an annual license fee of $25,000. However, under the AGPL license, you can distribute your merged PDF creation as open source code.
• System requirements: GhostScript must be installed on either the Linux/Mac OS system (as gs) or Windows (as Ghostscript) for the code to function properly.

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