PHP 및 TCPDF를 사용하여 워터마크 및 배경 이미지 만들기

$watermark = imagecreatefrompng('watermark.png');
$imgsizeX = imagesx($watermark);
$imgsizeY = imagesy($watermark);
$image = imagecreatetruecolor($imgsizeX, $imgsizeY);
$bg = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $bg);
imagecolordeallocate($image, $bg);
imagecopy($image, $watermark, 0, 0, 0, 0, $imgsizeX, $imgsizeY);
imagepng($image, 'watermark_new.png');
imagedestroy($image);
imagedestroy($watermark);

require_once('TCPDF/tcpdf.php');

$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
$pdf->SetCreator(PDF_CREATOR);
$pdf->SetAuthor('author');
$pdf->SetTitle('title');
$pdf->setPrintHeader(false);
$pdf->setPrintFooter(false);

// 添加背景图
$pdf->setPageBackgroundImage('background.jpg', 0, 0, 595, 842, '', false, 50, array(0,0,0), array(255,255,255));

// 添加水印
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
$pdf->Image('dogs.jpg', 5, 5, 180, 0, 'JPG', '', '', false, 300, '', false, false, array(0,0,0,50));
$pdf->Image('watermark_new.png', 0, 0, 180, 0, 'PNG', '', '', false, 300, '', false, false, array(0,0,0,50));

$pdf->Output('output.pdf', 'I');

$width = 1000;
$height = 500;
$image = imagecreate($width, $height);
$bg = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $bg);
imagedestroy($bg);
$line_color = imagecolorallocate($image, 0, 0, 0);

for($i = 0; $i < $width; $i += 50){
    imageline($image, $i, 0, $i, $height, $line_color);
}
for($i = 0; $i < $height; $i += 50){
    imageline($image, 0, $i, $width, $i, $line_color);
}

header('Content-Type:image/png');
imagepng($image);
imagedestroy($image);