imagejpeg do not show an a image

Question

I'm trying generate a certificate to print, but the only thing that happens is show a empty square in screen:

I'm trying show the image on the screen before i try to write on it.

header("Content-type: image/jpeg");
$imagem = imagecreatefromjpeg("assets/img/certificado.jpg");
imagejpeg($imagem);

I already check the gd2 extension and it's enable:

And I check the php error log and the page who run this code dont return any error.

When I remove the header("Content-type:image/jpeg"); and put a var_dump($i) it shows me this: resource(12,gd)

Sorry for my english and thanks!

Answer 1

$our_image = imagecreatefromjpeg('upload/promo/flyer_hindi.jpg');
$white_color = imagecolorallocate($our_image, 0, 0, 0);
$font_path = 'upload/promo/CALIBRIB.TTF';
$text = 'some text';
$size = 70;
$angle = 0;
$left = 420;
enter code here
imagettftext($our_image, $size, $angle, $left, $top, $white_color, $font_path, $text);
imagejpeg($our_image, 'upload/promo/' . $id . '.jpg', 80);

i tried this code a last year, i upload a flyer and add some text on fix location and save. i think you need the same.