An example thread of pictures too wide, no offense to the author, can be seen here
Here's an example of what I'm talking about:

Djinn Effer
Inde
Savio
Djinn Effer
Amity and Truth
<? /* Configure your maxsize here. The $image variable SHOULD be in the sourcecode somewhere but i dont know how vBulletin named it. Just rename it in my function.*/ $img_maxwidth = 635; // array[0] = width, array[1] = height $img_size = getimagesize ($image); if ($img_size[0] >= $img_maxwidth) { $perc = $img_maxwidth / $img_size[0]; $img_size_width = round($img_size[0] * $perc); $img_size_height = round($img_size[1] * $perc); echo "<img src=$image width=\"$img_size_width\" height=\"$img_size_height\"> <br><a href=$image> Image Resized, click here to view original version</a>"; } else { echo "<img src=$image>"; } ?>