Dynamic images in php writing text vertical

[redbrad0]

I need to dynamically create a image which I have attached to this post. Now I can create a dynamic image, with text and the barcode but the problem is when the next needs to go vertical and same with the barcode. I am using the imagecreatefrompng to load the template image into a variable and then using lines like below to write the text. So how can I write vertical and if I am creating approx 500 of these images every day should I look at doing this a different way then just using png files?

 

imagestring($im, $font, "362", "35", $TicketConfirmation, $black);

 

[attachment deleted by admin]

[Barand]

imagestringup()

 

or imagettftext() with text angle of 90 or 270