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?

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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.