Put PNG over a JPG in PHP

Question

I want to do the following in PHP:

I have two images, a jpg and a png. I want to resize the jpg to the same size as the png then put the png on top. The PNG has transparency so I would like to preserve that so the jpg shows underneath.

If anyone could help that would be great!

Thanks

Look into the GD (or GD2) library for PHP. – Moshe Feb 15 '10 at 22:26 — Moshe, Feb 15 '10 at 22:26
i want to achieve this in woocommerce can someone direct – VedantK Oct 24 '15 at 09:34 — VedantK, Oct 24 '15 at 09:34
It is not duplicate. It is another approach. – SaidbakR Sep 24 '16 at 17:03 — SaidbakR, Sep 24 '16 at 17:03

score 53 · Accepted Answer · answered Feb 15 '10 at 22:41

53

<?
$png = imagecreatefrompng('./mark.png');
$jpeg = imagecreatefromjpeg('./image.jpg');

list($width, $height) = getimagesize('./image.jpg');
list($newwidth, $newheight) = getimagesize('./mark.png');
$out = imagecreatetruecolor($newwidth, $newheight);
imagecopyresampled($out, $jpeg, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
imagecopyresampled($out, $png, 0, 0, 0, 0, $newwidth, $newheight, $newwidth, $newheight);
imagejpeg($out, 'out.jpg', 100);
?>

answered Feb 15 '10 at 22:41

skyman

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Thanks a lot! Stuck on the similar merging issue for 3rd day without any ideas (*forgot everything what knew before*) ... saved my *soul*! Great thanks! God bless you! – Paul T. Rawkeen Dec 10 '12 at 21:40
Code is not working. As it displays image not found icon. – Anupal Oct 03 '13 at 04:13
Great answer, solution works well. – Lloyd Erasmus Apr 29 '18 at 14:22

score 7 · Answer 2 · edited Jun 24 '10 at 21:35

7

This is the working code which i using

$dest = imagecreatefrompng('mapCanvas.png');
$src = imagecreatefromjpeg('si.jpg');
imagealphablending($dest, false);
imagesavealpha($dest, true);
// Copy and merge
imagecopymerge($dest, $src, 17, 13, 0, 0, 60, 100, 100);

// Output and free from memory
header('Content-Type: image/png');
imagepng($dest);

imagedestroy($dest);
imagedestroy($src);

edited Jun 24 '10 at 21:35

Kevin Panko

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answered Feb 15 '10 at 23:11

webkul

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Thks it is working perfectly but output image have n colours means it outputs black-white image. Now what to do for it. – Deepak Chawla Oct 04 '18 at 05:33

score 4 · Answer 3 · answered Feb 15 '10 at 22:32

Here is a link to an example that will overlay a transparent watermark onto an image. Might be your use case, might be related.

http://www.php.net/manual/en/image.examples.merged-watermark.php

There is also a way to load JPG images, resize images, turn on alpha tracking, and export images in GD.

Jacob

Put PNG over a JPG in PHP

3 Answers3

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