Codeigniter strip image EXIF data

I am doing image upload and resizing using the gd2 im开发者_开发问答age library.

The image EXIF data is rotating my vertical pictures on resize. Is there a way to stop the image from rotating? or strip the exif data in php?

Barring learning the JPEG format and figuring out how to remove EXIF bit by bit...

You can use the GD library.

http://www.php.net/manual/en/function.imagecreatefromjpeg.php and http://www.php.net/manual/en/function.imagejpeg.php should do it.