How do you convert a PMD file to a PDF file using PHP?

To convert a PMD file to a PDF file using PHP, you can utilize a library like Ghostscript or a dedicated conversion tool like LibreOffice in headless mode. First, ensure the necessary software is installed on your server. You can then execute a shell command in PHP using exec() to call the conversion tool, for example, using Ghostscript:

<code class="language-php">exec("gs -sDEVICE=pdfwrite -o output.pdf input.pmd");
</code>

Make sure to handle any errors and permissions appropriately.