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POPHP GD watermark script produces blank watermark
 

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  1. POPHP GD watermark script produces blank watermark
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    <p>I'm trying to add a watermark to images right after uploading them to my website, but it seems the watermark keeps coming out as a black object with no details. I believe the script is working a little bit because if it wasn't, I probably wouldn't see any kind of watermark or the script would fail.</p> <p>This is my script so far:</p> <pre><code>$watermark = imagecreatefrompng('preview-watermark.png'); $watermark_width = imagesx($watermark); $watermark_height = imagesy($watermark); $image = imagecreatetruecolor($watermark_width, $watermark_height); $image = imagecreatefromjpeg($portfolio_preview_dir.'/'.$file); $size = getimagesize($portfolio_preview_dir.'/'.$file); $dest_x = $size[0] - $watermark_width - 5; $dest_y = $size[1] - $watermark_height - 5; imagecopymerge($image, $watermark, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height, 100); imagejpeg($image, $portfolio_preview_dir.'/'.$file); imagedestroy($image); imagedestroy($watermark); </code></pre> <p>This is what it's producing. The shape of the watermark is correct, as the watermark is 325x37 pixels:</p> <p><img src="https://i.stack.imgur.com/EjOvE.png" alt="enter image description here"></p> <p>I have tried playing with the watermark image itself. My first attempt was to save the photoshop watermark (with transparent bg) using 'save for web' and selected 'PNG-24'. This didn't work, so I then saved it as a normal PNG (without 'save for web') and it still fails.</p> <p>I'm not sure whether it's the script or the image! Can somebody please share some knowledge with me and help fix this issue?</p>
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    1. USTheCarver
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    1. COI remember reading [somewhere](http://stackoverflow.com/questions/11680734/php-watermark-png-transparency-alpha) there are some GD issues with PNG-24 and PNG-8 would be preferable with regards to wattermarks.
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      1. POPHP GD watermark script produces blank watermark
      1. USMihai Stancu
 

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