Using add_image_size in functions.php to get original uploaded file

You can always get the url for original attachment image. I don’t see any code from you so i don’t know which one is good for you but there are lots of functions on core which will get you the original image.

here are some

http://codex.wordpress.org/Function_Reference/wp_get_attachment_url

http://codex.wordpress.org/Function_Reference/the_post_thumbnail

http://codex.wordpress.org/Function_Reference/wp_get_attachment_image_src

When you scroll down bottom of the page you will see more related functions. So, searching on codex is always a good idea when you learning 🙂

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