ดึงข้อความจาก PDF ใน PHP

    // Create a new Document object from the input PDF file.
    $document = new Document($inputFile);

    // Create a new TextAbsorber object to extract text from the document.
    $textAbsorber = new TextAbsorber();

    // Extract text from the document.
    $textAbsorber->visit($document);

    // Get the extracted text content.
    $content = $textAbsorber->getText();

    // Save the extracted text to the output file.
    file_put_contents($outputFile, $content);

    $document->close();