PHP/PDF/pdf place image

Embedding Images in PDF Documents

 
<?php
    define("PAGE_WIDTH", 612);
    define("PAGE_HEIGHT", 792);
    $pdf = pdf_new();
    pdf_begin_document($pdf, "", "");
    pdf_begin_page($pdf, PAGE_WIDTH, PAGE_HEIGHT);
    $gd_logo = imagecreatefromjpeg("logo.jpg");
    $logo = pdf_open_memory_image($pdf, $gd_logo);
    $logo_w = pdf_get_value($pdf, "imagewidth", $logo);
    imagedestroy($gd_logo);
    pdf_place_image($pdf, $logo, PAGE_WIDTH/2 - ($logo_w/2), PAGE_HEIGHT/2, 1.0);
    pdf_close_image($pdf, $logo);
    pdf_end_page($pdf);
    pdf_end_document($pdf, "");
    $data = pdf_get_buffer($pdf);
    header("Content-type: application/pdf");
    header("Content-disposition: inline; filename=example1.pdf");
    header("Content-length: " . strlen($data));
    echo $data;
?>