uploading an image in binary

I'm having trouble with a script to upload images, which is baffling me because a similar script has worked fine on other occasions. I can get the image file uploaded to the correct directory, but it is uploading in ASCII and I obviously need it in binary. The file name on the form is like this: <input type="file" name="add_imgthumb"> then the code on the php script looks like this: $uploadpath = 'path/images/'; $source = $_FILES['add_imgthumb']['tmp_name']; $name = $_FILES['add_imgthumb']['name']; $dest = $uploadpath.$name; copy($source, $dest); simple, i know, but that's the way i want it. What do I have to do to get the image to be uploaded in binary?