Watermark images (on the fly)

This is something i made because I couldn't find any hack working for 3.0.7. Just took a couple of minutes.


Works with 3.0.7!

[Liquid1ce]

very nice hack thanks

[Logikos]

Nice work, i will test this now.

[Robbban]

Originally Posted by Live Wire

Nice work, i will test this now.

Good! Please tell me how you think it works! If there is any errors (witch there shouldn't be since I tested it and it works) please don't hesitate to contact me!

[Benj]

thanks man this is just what i need

[Logikos]

I tested on my site and it seems nothing has happen. I replaced

PHP Code:

echo $attachmentinfo['filedata']; 


With

PHP Code:

    if (strpos($attachmentinfo['mimetype'],"image/jp")) { $isjpg = 1; }
    if ($isjpg && !$_GET['thumb']) {
        $filename = "/home/vbhacks/public_html/forum/watermark.png"; // use a PNG-24 to preserve transparency!

        $im = imagecreatefromstring($attachmentinfo['filedata']);
        imagealphablending($im, true);

        $watermark = imagecreatefrompng($filename);

        $y = imagesy($im) - imagesy($watermark);

        $w = imagesx($watermark);
        $h = imagesy($watermark);
    
        imagecopy($im, $watermark, 0, $y, 0, 0, $w, $h);

        imagejpeg($im, "", 80);
    } else {
        echo $attachmentinfo['filedata'];
    } 


And uploaded this in my forums directory. But nothing shows when i click on an attachment. Something im doing wrong?

[Robbban]

Hmmm... Have you tried to reload the page with CTRL+F5? Internet Explorer caches all images

Edit:

watermark.png is one thing and watermark.PNG is another. Change the filename.

[HuangA]

nice work, I'll try it out now ^^

[Logikos]

I tried what you said and still seems like nothing has happen. Will this only work on vb 3.0.3? cause im using 3.0.0 but the code seems there is no diffrence.

[The Coldwood]

Great hack - really enjoyed it!